Indian Dental Academy: will be one of the most relevant and exciting
training center with best faculty and flexible training programs
for dental professionals who wish to advance in their dental
practice,Offers certified courses in Dental
implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic
Dentistry, Periodontics and General Dentistry.
phonetics play an important role in planning and preparing complete denture for the complete edentulous patients.design of the prosthetic denture affects speech in a number of ways.
The document discusses face bows, which are used to record the spatial relationship between the maxilla and temporomandibular joints. This allows for accurate transfer of jaw relations to an articulator. The document covers the history and evolution of face bows, from early prototypes to modern designs. It describes the parts of face bows including the U-shaped frame, condylar rods/earpieces, bite fork, and locking/reference points. Different types are classified including arbitrary, fascia, and earpiece models. The uses, advantages, and limitations of various designs are also outlined.
The document discusses the history and types of articulators. It defines an articulator as a mechanical instrument that represents the temporomandibular joint and jaws. It then summarizes the evolution of various articulators from the early slab articulator in 1756 to modern fully adjustable articulators. The document also classifies articulators based on theories of occlusion, the type of records used, their ability to simulate jaw movements, and their adjustability.
This document discusses stress breakers in prosthodontics. It defines stress and stress breakers, and describes their aims in directing occlusal forces and preventing harm to remaining teeth. Various types of stress breakers are presented for different prosthesis applications, including removable partial dentures, fixed partial dentures, and tooth-implant supported prostheses. Philosophies of stress distribution like stress equalization, physiologic basing, and broad stress distribution are covered. Specific stress breaker designs like hinges, non-rigid connectors, split pontics, and key-keyway joints are explained.
The document discusses connectors in fixed partial dentures. Connectors are defined as the portion of a fixed dental prosthesis that unites the retainers and pontics. Connectors must be sufficiently strong, elliptical in cross-section, and placed as lingually and incisally as possible in anterior teeth and in the occlusal third for posterior teeth. Rigid connectors include cast, soldered, and loop connectors while non-rigid connectors allow limited movement and include dovetail, split, and cross-pin connectors. Soldering techniques such as torch, oven, laser, and infrared soldering are described for joining connectors along with considerations for solder composition and properties.
This document discusses centric jaw relation, including its definition, significance, and methods of recording. It begins by defining centric relation as the maxillomandibular relationship when the condyles are in their most superior and anterior position against the articular eminences, independently of tooth contact. The document then explores the changing definitions of centric relation over time and the anatomy of the temporomandibular joint as it relates to centric relation. It discusses the importance of centric relation in establishing harmony between centric occlusion and the jaw joints. Finally, it examines various static and functional methods for recording centric relation, such as chin point guidance, bimanual manipulation, and interocclusal records.
This document provides an overview of Gothic arch tracing techniques used to record centric relation. It defines key terms and discusses the history and evolution of graphic recording methods from early needle point tracings to modern extraoral and intraoral tracers that produce Gothic arch tracings. The conventional extraoral technique is described in 12 steps, from mounting the tracers to making centric and protrusive plaster records. Intraoral tracings are noted to be smaller and harder to observe during tracing compared to extraoral methods.
This document discusses the theoretical background and techniques of the Hobo full mouth rehabilitation approach. It defines key terms like condylar guidance, incisal guidance, and disocclusion. It explains that the goal of reorganizing occlusion is to address issues like trauma, poor function, or lack of space. The optimal occlusion balances factors like condylar path, incisal guidance, and cuspal angles. The articulator aims to replicate these concepts to guide reconstruction of the full mouth.
phonetics play an important role in planning and preparing complete denture for the complete edentulous patients.design of the prosthetic denture affects speech in a number of ways.
The document discusses face bows, which are used to record the spatial relationship between the maxilla and temporomandibular joints. This allows for accurate transfer of jaw relations to an articulator. The document covers the history and evolution of face bows, from early prototypes to modern designs. It describes the parts of face bows including the U-shaped frame, condylar rods/earpieces, bite fork, and locking/reference points. Different types are classified including arbitrary, fascia, and earpiece models. The uses, advantages, and limitations of various designs are also outlined.
The document discusses the history and types of articulators. It defines an articulator as a mechanical instrument that represents the temporomandibular joint and jaws. It then summarizes the evolution of various articulators from the early slab articulator in 1756 to modern fully adjustable articulators. The document also classifies articulators based on theories of occlusion, the type of records used, their ability to simulate jaw movements, and their adjustability.
This document discusses stress breakers in prosthodontics. It defines stress and stress breakers, and describes their aims in directing occlusal forces and preventing harm to remaining teeth. Various types of stress breakers are presented for different prosthesis applications, including removable partial dentures, fixed partial dentures, and tooth-implant supported prostheses. Philosophies of stress distribution like stress equalization, physiologic basing, and broad stress distribution are covered. Specific stress breaker designs like hinges, non-rigid connectors, split pontics, and key-keyway joints are explained.
The document discusses connectors in fixed partial dentures. Connectors are defined as the portion of a fixed dental prosthesis that unites the retainers and pontics. Connectors must be sufficiently strong, elliptical in cross-section, and placed as lingually and incisally as possible in anterior teeth and in the occlusal third for posterior teeth. Rigid connectors include cast, soldered, and loop connectors while non-rigid connectors allow limited movement and include dovetail, split, and cross-pin connectors. Soldering techniques such as torch, oven, laser, and infrared soldering are described for joining connectors along with considerations for solder composition and properties.
This document discusses centric jaw relation, including its definition, significance, and methods of recording. It begins by defining centric relation as the maxillomandibular relationship when the condyles are in their most superior and anterior position against the articular eminences, independently of tooth contact. The document then explores the changing definitions of centric relation over time and the anatomy of the temporomandibular joint as it relates to centric relation. It discusses the importance of centric relation in establishing harmony between centric occlusion and the jaw joints. Finally, it examines various static and functional methods for recording centric relation, such as chin point guidance, bimanual manipulation, and interocclusal records.
This document provides an overview of Gothic arch tracing techniques used to record centric relation. It defines key terms and discusses the history and evolution of graphic recording methods from early needle point tracings to modern extraoral and intraoral tracers that produce Gothic arch tracings. The conventional extraoral technique is described in 12 steps, from mounting the tracers to making centric and protrusive plaster records. Intraoral tracings are noted to be smaller and harder to observe during tracing compared to extraoral methods.
This document discusses the theoretical background and techniques of the Hobo full mouth rehabilitation approach. It defines key terms like condylar guidance, incisal guidance, and disocclusion. It explains that the goal of reorganizing occlusion is to address issues like trauma, poor function, or lack of space. The optimal occlusion balances factors like condylar path, incisal guidance, and cuspal angles. The articulator aims to replicate these concepts to guide reconstruction of the full mouth.
This document provides instructions for making final impressions for complete dentures. It discusses the objectives of impressions which are preservation of tissue, support, stability, esthetics and retention. The techniques described are aimed at recording tissues in their resting position to avoid displacement. Border molding is used to establish contours and test peripheral seal. A selective pressure technique uses light material to achieve a mucostatic impression. Proper tray design and customization are emphasized.
This document discusses the posterior palatal seal (PPS), including its role, location, and function in complete denture treatment. It defines the PPS and discusses factors that govern denture retention. The document covers PPS anatomy, design, clinical procedures, techniques for recording the PPS, and classifications of palatal forms and soft palate shapes. It provides details on locating the vibrating line and summarizes literature on determining the proper placement of the PPS.
The document discusses various parts of articulators including the upper member, lower member, mounting plates, condylar analogues, condylar guidance, incisal guide pin, and incisal guide table. It then describes specific articulators including the Mean Value Hanau Artex, Hanau Model H, Hanau Model M Kinoscope, Hanau H2, Hanau Mate, and Hanau Wide Vue. Key features of each articulator such as the ability to accept a facebow transfer, adjustable condylar guidance and incisal guidance, and separation of upper and lower members are highlighted.
This document provides an introduction to articulators, which are mechanical instruments that represent the temporomandibular joints and jaws. They allow dental casts to be attached to simulate jaw movements. The document defines articulators and lists their uses and requirements. It explains the different types of articulators including non-adjustable, average-value, semi-adjustable, and fully-adjustable articulators. It also discusses facebows and compares arcon and non-arcon articulators.
This document discusses dental attachments used for partial dentures. It defines precision attachments as milled alloy attachments fixed to dentures for retention and support. Various attachment types are described, including clasps, stud attachments, coronal attachments, and magnetic attachments. The benefits of attachments over clasps are outlined, such as longer lifespan, better retention and chewing efficiency. Factors in selecting the appropriate attachment include location, opposing arch, available space, cost and patient dexterity. Both advantages and drawbacks of attachments are presented.
Prosthetic options in implant dentistryNAMITHA ANAND
This document discusses various prosthetic options in implant dentistry. It begins by introducing different treatment options for completely and partially edentulous patients, noting that implant dentistry provides more options compared to traditional dentistry. It then covers Misch's classification system for prosthetic options (FP1-FP3, RP4-RP5), which are determined by the amount of hard and soft tissue replacement needed. The document discusses different prosthesis types for complete and partial edentulism in detail. It also covers considerations for prosthesis design such as crown height space, bone width, implant positioning and restorative materials. In conclusion, the optimal prosthetic option depends on the patient's existing oral condition and treatment goals.
This document provides an overview of hinge axis and facebows. It discusses the need to determine the plane of orientation between the maxilla and mandible. It defines hinge axis and terminal hinge axis. It describes different methods to locate the hinge axis including arbitrary, kinematic, and modified methods. It discusses the history, parts, types, and uses of facebows. It also reviews literature on different schools of thought around hinge axis and controversies in its location.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
This document discusses treatment options for Kennedy class IV partial dentures. For children, options include spoon dentures or modified spoon dentures. For adults, options are short or long span partial dentures, single implants, implant-supported fixed prostheses, fixed bridges, or removable partial dentures. The document focuses on details of spoon denture design and construction for children, as well as skeleton designs for class IV partial dentures that use posterior clasping systems for adults.
I will discuss various reference points for face bow.....
Thanks for watching......
If you like to watch my youtube channel..
please click for my channel....... Dr Aaryas Vlogs
https://youtu.be/myAENzQlHjE
1. The functionally generated pathway technique involves recording the paths of tooth movement during excursive jaw motions using wax or other materials.
2. This recording is used to develop the occlusal morphology for dental restorations like crowns, ensuring optimal occlusion during all jaw motions.
3. Studies have found that the functionally generated pathway technique results in restorations with better functional articulation compared to conventional single casting techniques, with less adjustment needed and higher patient satisfaction.
5- Basic principles for designing the removable partial denture class i parti...Amal Kaddah
Content:
Basic principles for removable partial dentures’ designs
1.Objectives and functions of removable partial dentures.
2.Factors that affect removable partial dentures’ design.
a. Abutment condition
b. Ridge condition
c. Patients’ needs, Gender and advanced age
d. Forces acting on removable partial dentures.
3. Biomechanical principles of the distal extension partial denture design
4.Damaging effect of removable partial dentures.
5.Problems of support associated with free-end saddles removable partial dentures.
6.How to control these problems (solutions).
a. Reduction of the load.
b. Distribution of the load between abutment teeth and residual ridges.
c. Wide distribution of the load
d. Providing posterior abutment
7.Principles of Class I RPD design
8.Selecting components for designing free extension removable partial dentures
(Basic Principles of a Properly Designed Components)
a. Denture base and Artificial Teeth
b. Proximal plates
c. Rests
d. Direct retainers and Indirect Retainers
e. Major connector and Minor connectors
9.Conclusion
Minimizing and controlling strain on the residual ridge
Minimizing and controlling strain on the abutment teeth
10. Bibliographies
This document discusses the importance of recording jaw relations when fabricating removable partial dentures (RPDs). There are several methods for recording jaw relations, including direct apposition of casts, interocclusal records with posterior teeth remaining, and using occlusion rims. Centric relation should be recorded for distal extension RPDs or when the opposing arch is edentulous, while centric occlusion is preferred when natural teeth can guide the mandible. Proper jaw relation and occlusion are necessary to distribute forces optimally and prevent damage to teeth or bone.
10 post insertion problems and complaints.Amal Kaddah
The document discusses common post-insertion problems with dentures including pain, poor fit, looseness, speech difficulties, and inability to eat. Potential causes are outlined such as overextension of borders, improper occlusion, cuspal interference, unstable dentures, and flat teeth. Treatment options provided include relining dentures, adjusting occlusion, constructing new dentures, and altering vertical dimension.
This document discusses various types of unconventional or special dentures used to manage compromised patients that cannot be treated satisfactorily with conventional complete dentures. It describes dentures like hollow dentures for extreme ridge resorption, liquid-supported dentures for tissues issues, sectional dentures for microstomia patients, and metal-based dentures for additional strength. It also covers techniques like immediate dentures, duplicate dentures, characterized dentures, and flexible dentures made of thermoplastic resin. Special dentures aim to address complications from conditions like xerostomia, sunken cheeks, undercuts, and limited mouth opening.
This document discusses the history and evolution of the facebow, from its origins in the late 19th century to modern uses. It describes key figures who developed early types of facebows and articulators. The document also covers types of facebows, their indications, and how facebow registration transfers the jaw relationship to an articulator to allow for accurate mounting of dental casts. Maintaining an accurate hinge axis orientation is important for proper occlusion.
Rest and Rest Seat preparation..removable partial denture eslam gomaa
1) Rests are extensions of a partial denture that are placed in prepared rest seats on teeth. They provide support to the partial denture.
2) Common types of rests include occlusal rests, lingual rests, incisal rests, and embrasure hooks. Occlusal rests are most commonly placed on posterior teeth while lingual rests are used on anterior teeth.
3) Rest seats are prepared to receive the rests. Requirements for an adequate rest seat include a rounded triangular shape, appropriate dimensions, and elimination of undercuts to allow for accurate seating of the rest.
Impression procedures for complete denture cases / oral surgery courses Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document provides an overview of orientation relations and facebows. It defines key terms like jaw relation, orientation relation, and facebow. It describes the transverse hinge axis and sagittal plane. It discusses different types of facebows like kinematic, arbitrary, and earpiece facebows. It covers the procedure for taking a facebow record and potential errors. The document also reviews literature on controversies around locating the hinge axis and accuracy of arbitrary vs kinematic facebows. It provides a brief history of the development of facebow instruments over time.
Indian Dental Academy: will be one of the most relevant and exciting
training center with best faculty and flexible training programs
for dental professionals who wish to advance in their dental
practice,Offers certified courses in Dental
implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic
Dentistry, Periodontics and General Dentistry.
This document provides instructions for making final impressions for complete dentures. It discusses the objectives of impressions which are preservation of tissue, support, stability, esthetics and retention. The techniques described are aimed at recording tissues in their resting position to avoid displacement. Border molding is used to establish contours and test peripheral seal. A selective pressure technique uses light material to achieve a mucostatic impression. Proper tray design and customization are emphasized.
This document discusses the posterior palatal seal (PPS), including its role, location, and function in complete denture treatment. It defines the PPS and discusses factors that govern denture retention. The document covers PPS anatomy, design, clinical procedures, techniques for recording the PPS, and classifications of palatal forms and soft palate shapes. It provides details on locating the vibrating line and summarizes literature on determining the proper placement of the PPS.
The document discusses various parts of articulators including the upper member, lower member, mounting plates, condylar analogues, condylar guidance, incisal guide pin, and incisal guide table. It then describes specific articulators including the Mean Value Hanau Artex, Hanau Model H, Hanau Model M Kinoscope, Hanau H2, Hanau Mate, and Hanau Wide Vue. Key features of each articulator such as the ability to accept a facebow transfer, adjustable condylar guidance and incisal guidance, and separation of upper and lower members are highlighted.
This document provides an introduction to articulators, which are mechanical instruments that represent the temporomandibular joints and jaws. They allow dental casts to be attached to simulate jaw movements. The document defines articulators and lists their uses and requirements. It explains the different types of articulators including non-adjustable, average-value, semi-adjustable, and fully-adjustable articulators. It also discusses facebows and compares arcon and non-arcon articulators.
This document discusses dental attachments used for partial dentures. It defines precision attachments as milled alloy attachments fixed to dentures for retention and support. Various attachment types are described, including clasps, stud attachments, coronal attachments, and magnetic attachments. The benefits of attachments over clasps are outlined, such as longer lifespan, better retention and chewing efficiency. Factors in selecting the appropriate attachment include location, opposing arch, available space, cost and patient dexterity. Both advantages and drawbacks of attachments are presented.
Prosthetic options in implant dentistryNAMITHA ANAND
This document discusses various prosthetic options in implant dentistry. It begins by introducing different treatment options for completely and partially edentulous patients, noting that implant dentistry provides more options compared to traditional dentistry. It then covers Misch's classification system for prosthetic options (FP1-FP3, RP4-RP5), which are determined by the amount of hard and soft tissue replacement needed. The document discusses different prosthesis types for complete and partial edentulism in detail. It also covers considerations for prosthesis design such as crown height space, bone width, implant positioning and restorative materials. In conclusion, the optimal prosthetic option depends on the patient's existing oral condition and treatment goals.
This document provides an overview of hinge axis and facebows. It discusses the need to determine the plane of orientation between the maxilla and mandible. It defines hinge axis and terminal hinge axis. It describes different methods to locate the hinge axis including arbitrary, kinematic, and modified methods. It discusses the history, parts, types, and uses of facebows. It also reviews literature on different schools of thought around hinge axis and controversies in its location.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
This document discusses treatment options for Kennedy class IV partial dentures. For children, options include spoon dentures or modified spoon dentures. For adults, options are short or long span partial dentures, single implants, implant-supported fixed prostheses, fixed bridges, or removable partial dentures. The document focuses on details of spoon denture design and construction for children, as well as skeleton designs for class IV partial dentures that use posterior clasping systems for adults.
I will discuss various reference points for face bow.....
Thanks for watching......
If you like to watch my youtube channel..
please click for my channel....... Dr Aaryas Vlogs
https://youtu.be/myAENzQlHjE
1. The functionally generated pathway technique involves recording the paths of tooth movement during excursive jaw motions using wax or other materials.
2. This recording is used to develop the occlusal morphology for dental restorations like crowns, ensuring optimal occlusion during all jaw motions.
3. Studies have found that the functionally generated pathway technique results in restorations with better functional articulation compared to conventional single casting techniques, with less adjustment needed and higher patient satisfaction.
5- Basic principles for designing the removable partial denture class i parti...Amal Kaddah
Content:
Basic principles for removable partial dentures’ designs
1.Objectives and functions of removable partial dentures.
2.Factors that affect removable partial dentures’ design.
a. Abutment condition
b. Ridge condition
c. Patients’ needs, Gender and advanced age
d. Forces acting on removable partial dentures.
3. Biomechanical principles of the distal extension partial denture design
4.Damaging effect of removable partial dentures.
5.Problems of support associated with free-end saddles removable partial dentures.
6.How to control these problems (solutions).
a. Reduction of the load.
b. Distribution of the load between abutment teeth and residual ridges.
c. Wide distribution of the load
d. Providing posterior abutment
7.Principles of Class I RPD design
8.Selecting components for designing free extension removable partial dentures
(Basic Principles of a Properly Designed Components)
a. Denture base and Artificial Teeth
b. Proximal plates
c. Rests
d. Direct retainers and Indirect Retainers
e. Major connector and Minor connectors
9.Conclusion
Minimizing and controlling strain on the residual ridge
Minimizing and controlling strain on the abutment teeth
10. Bibliographies
This document discusses the importance of recording jaw relations when fabricating removable partial dentures (RPDs). There are several methods for recording jaw relations, including direct apposition of casts, interocclusal records with posterior teeth remaining, and using occlusion rims. Centric relation should be recorded for distal extension RPDs or when the opposing arch is edentulous, while centric occlusion is preferred when natural teeth can guide the mandible. Proper jaw relation and occlusion are necessary to distribute forces optimally and prevent damage to teeth or bone.
10 post insertion problems and complaints.Amal Kaddah
The document discusses common post-insertion problems with dentures including pain, poor fit, looseness, speech difficulties, and inability to eat. Potential causes are outlined such as overextension of borders, improper occlusion, cuspal interference, unstable dentures, and flat teeth. Treatment options provided include relining dentures, adjusting occlusion, constructing new dentures, and altering vertical dimension.
This document discusses various types of unconventional or special dentures used to manage compromised patients that cannot be treated satisfactorily with conventional complete dentures. It describes dentures like hollow dentures for extreme ridge resorption, liquid-supported dentures for tissues issues, sectional dentures for microstomia patients, and metal-based dentures for additional strength. It also covers techniques like immediate dentures, duplicate dentures, characterized dentures, and flexible dentures made of thermoplastic resin. Special dentures aim to address complications from conditions like xerostomia, sunken cheeks, undercuts, and limited mouth opening.
This document discusses the history and evolution of the facebow, from its origins in the late 19th century to modern uses. It describes key figures who developed early types of facebows and articulators. The document also covers types of facebows, their indications, and how facebow registration transfers the jaw relationship to an articulator to allow for accurate mounting of dental casts. Maintaining an accurate hinge axis orientation is important for proper occlusion.
Rest and Rest Seat preparation..removable partial denture eslam gomaa
1) Rests are extensions of a partial denture that are placed in prepared rest seats on teeth. They provide support to the partial denture.
2) Common types of rests include occlusal rests, lingual rests, incisal rests, and embrasure hooks. Occlusal rests are most commonly placed on posterior teeth while lingual rests are used on anterior teeth.
3) Rest seats are prepared to receive the rests. Requirements for an adequate rest seat include a rounded triangular shape, appropriate dimensions, and elimination of undercuts to allow for accurate seating of the rest.
Impression procedures for complete denture cases / oral surgery courses Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document provides an overview of orientation relations and facebows. It defines key terms like jaw relation, orientation relation, and facebow. It describes the transverse hinge axis and sagittal plane. It discusses different types of facebows like kinematic, arbitrary, and earpiece facebows. It covers the procedure for taking a facebow record and potential errors. The document also reviews literature on controversies around locating the hinge axis and accuracy of arbitrary vs kinematic facebows. It provides a brief history of the development of facebow instruments over time.
Indian Dental Academy: will be one of the most relevant and exciting
training center with best faculty and flexible training programs
for dental professionals who wish to advance in their dental
practice,Offers certified courses in Dental
implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic
Dentistry, Periodontics and General Dentistry.
This document discusses orientation jaw relations and the use of a facebow. It defines orientation jaw relations as the relationship between the mandible and cranium when the mandible is in its most retruded position. A facebow is used to record this relationship and transfer it to an articulator. It classifies different types of facebows and discusses their components and use. The accurate use of a facebow is important for obtaining an accurate occlusion on an articulator.
This document discusses articulators, which are mechanical devices that simulate jaw movement. It covers the purposes, uses, requirements, advantages, limitations, and classifications of articulators. Articulators are used to mount dental casts and simulate jaw motions like opening and closing in order to diagnose occlusion, plan treatments, fabricate dental restorations, and arrange artificial teeth. They must accurately maintain the spatial relationship of dental casts and allow for various jaw motions and records. The document classifies articulators based on their function, the theories of occlusion they are based on, the records they can accept, and their degree of adjustability.
The document discusses articulators, which are mechanical instruments that represent the temporomandibular joints and allow dental casts to simulate jaw movements. It describes three main types of articulators: 1) simple hinge articulators that only allow opening and closing, 2) mean value articulators that also allow protrusive movement, and 3) adjustable articulators that can be customized based on individual patient records. Adjustable articulators are further broken down into semi-adjustable and fully adjustable models.
The document defines an articulator as a mechanical device that represents the temporomandibular joints and jaw members to attach dental casts and simulate jaw movements. Articulators are used to hold dental casts in a fixed relationship, simulate jaw movements like opening and closing, and reproduce border and intra-border tooth movements. They allow dentists to visualize occlusion, plan treatments, fabricate restorations, and arrange artificial teeth by simulating jaw movements without needing patient cooperation. Common components of articulators include upper and lower members to hold the casts, an incisal guide table, condylar guidance, and incisal pin to maintain relationships during jaw simulation. Articulators can be classified based on the occlusion theory they follow, the
This document discusses articulators and face-bows used in dentistry. It defines articulators as mechanical devices that simulate jaw movement and help arrange teeth. Face-bows record the spatial relationship of the maxilla to anatomical reference points and transfer this to articulators. The document classifies articulators based on adjustability from non-adjustable to fully adjustable. It also describes different types of face-bows including arbitrary and kinematic face-bows.
Facebow in orthodontics /certified fixed orthodontic courses by Indian dental...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
The document discusses orientation jaw relation and facebow transfer procedures. It defines orientation jaw relation as establishing the reference in the cranium and the relationship between the maxilla and mandible. It then describes recording orientation using a facebow to relate the maxillary cast to the articulator in the same way the maxilla relates to the temporomandibular joints. The document also summarizes the types of facebows, including arbitrary and kinematic, and procedures for using each in complete dentures and fixed prosthodontics.
Orientation jaw relation 4 / dental implant courses by Indian dental academy Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Anatomical Landmarks for Complete DenturesAhmed Samy
This document describes important anatomical landmarks for extraoral and intraoral examination in complete denture fabrication. Extraoral landmarks include the nasolabial sulcus, mentolabial sulcus, and angle of the mouth. Intraoral maxillary landmarks are the alveolar ridge, palate, tuberosities, and fovea palatinae. Intraoral mandibular landmarks include the alveolar ridge, retromolar pad, mental foramen, and mylohyoid ridge. The document outlines the primary and secondary stress bearing areas, relief areas, and border structures to consider for complete denture impressions and prosthesis design.
1. Classification of jaw relations establishes orientation, vertical, and horizontal relations between the jaws. Orientation defines cranial references, vertical defines jaw separation, and horizontal defines front-back and side-to-side jaw positions.
2. Centric relation is a repeatable reference position important for recording jaw relations and developing occlusion. It is the starting point for mandibular movements and where opposing teeth contact without proprioceptive guidance.
3. Methods for recording centric relation include interocclusal records, graphic tracings, and functional methods to position the mandible at the correct vertical dimension. The record must be made with equal pressure and avoid distortion until casts are mounted.
This document discusses dental articulators, which are mechanical instruments that simulate jaw movement by attaching maxillary and mandibular dental casts. It describes the main functions and purposes of articulators as allowing prosthodontic work to be done without the patient present and simulating jaw motions like opening, closing, and border movements. The document also classifies articulators based on their design and adjustability, outlining simple hinge, mean value condylar path, and adjustable condylar path articulators. Adjustable articulators can be semi-adjustable, allowing some pre-set condylar angles, or fully adjustable based on individual patient records.
Jaw relation is defined as any relationship between the mandible and maxilla. There are three types of jaw relations: orientation, vertical, and horizontal. Horizontal jaw relation refers to the relationship between the mandible and maxilla in the anteroposterior direction. There are two types of horizontal jaw relation: centric and eccentric. Centric jaw relation is when the condyles articulate with the thinnest avascular portion of the discs against the articular eminences independently of tooth contact in the anterior-superior position.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
The document discusses the history and development of the face bow, which is a dental instrument used to transfer the spatial relationship between a patient's jaws and skull to a dental articulator. It traces the evolution of the face bow from early devices developed in the 1860s to record jaw movements, to the modern face bow developed in the late 1920s that uses the infraorbital pointer as a third reference point. The document also covers the parts, types, use, and indications of the face bow for mounting dental casts on an articulator.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Orientation jaw relation /certified fixed orthodontic courses by Indian denta...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Orientation jaw relation /certified fixed orthodontic courses by Indian denta...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
The document provides a history of the development of the face bow dental instrument. It discusses how the face bow was introduced in the late 1800s and evolved over time. Major developments included Balkwill introducing a method to measure jaw angles in 1866, Luce using photographs to study jaw movements in 1889, and Snow developing the first true face bow device in 1889. The document outlines the parts of a face bow and different types including arbitrary and kinematic face bows. It explains how face bows are used to transfer jaw relationships to articulators to allow for accurate mounting of dental casts.
The straight wire concept /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document provides information about dental surveyors and surveying. It discusses the history and development of surveyors from early parallel instruments in the 1920s to modern electronic surveyors. It describes common surveyor types like the Ney and Jelenko surveyors and their components. The document outlines the importance of surveying in determining abutment teeth, undercuts, and the path of insertion for removable partial dentures. Surveyors are useful for identifying areas that need modification and ensuring proper placement of attachments and retainers.
Articulatorpowerpoint /certified fixed orthodontic courses by Indian dental a...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Opportunity for Dentists (BDS/MDS )to relocate to United kingdom -Register as a DENTAL HYGIENIST/ DENTAL THERAPIST without Board exams and after approval you can register in GDC as a DH/DT and start working as a DH/DT Immediately and get paid.
You can complete the whole process in 3-4 months.Salary range for DH/DT is around 2500-3500 Pounds per month.
Eligibility / requirements-
1. An International English Language Testing System (IELTS) certificate
at the appropriate level.(Within 2 yrs of application date )
2: A recent primary dental qualification that has been taught and examined in English..(Within 2 yrs of application date )
3: A recent pass in a language test for registration with a regulatory authority in a country where the first language is English.
If you are interested Please contact us for more details.
1ST, 2ND AND 3RD ORDER BENDS IN STANDARD EDGEWISE APPLIANCE SYSTEM /Fixed ort...Indian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals
who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry,
Periodontics and General Dentistry.
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
I –Aligners are made with FDA approved transparent thermoplastic materials using 3D scanning, 3D Printing and finally Trays with Pressure vacuum formers.
Dear Doctor,
Indian Dental Academy Now offers comprehensive online Orthodontics course.
Course includes:
1.whiteboard lecture presentations
2.Case Discussions
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6. subtitles in your own language
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For Demo please visit :www.idalectures.com/preview/
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Please contact us for any clarifications:
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indiandentalacademy@gmail.com
Thanks & Regards
Indian Dental Academy
--
Indian Dental Academy
Leader in continuing dental education
www.indiandentalacademy.com
skype:indiandentalacademy
+919248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Cytotoxicity of silicone materials used in maxillofacial prosthesis / dental ...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Diagnosis and treatment planning in completely endntulous arches/dental coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
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Properties of Denture base materials /rotary endodontic coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
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Use of modified tooth forms in complete denture occlusion / dental implant...Indian dental academy
This document discusses dental occlusion concepts and philosophies for complete dentures. It introduces key terms like physiologic occlusion and defines different occlusion schemes like balanced articulation and monoplane articulation. The document discusses advantages and disadvantages of using anatomic versus non-anatomic teeth for complete dentures. It also outlines requirements for maintaining denture stability, such as balanced occlusal contacts and control of horizontal forces. The goal of occlusion for complete dentures is to re-establish the homeostasis of the masticatory system disrupted by edentulism.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document discusses dental casting investment materials. It describes the three main types of investments - gypsum bonded, phosphate bonded, and ethyl silicate bonded investments. For gypsum bonded investments specifically, it details their classification, composition including the roles of gypsum, silica, and modifiers, setting time, normal and hygroscopic setting expansion, and thermal expansion. It provides information on how the properties of gypsum bonded investments are affected by their composition. The document serves as a comprehensive overview of dental casting investment materials.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
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it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
Chapter wise All Notes of First year Basic Civil Engineering.pptxDenish Jangid
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
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Answers about how you can do more with Walmart!"
1. 11
FACE BOWFACE BOW
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.indiandentalacademy.comwww.indiandentalacademy.com
2. 22
FACE BOWFACE BOW
““A Caliper like device which is used to recordA Caliper like device which is used to record
the relationship of the jaws to thethe relationship of the jaws to the
tempromandibular joint and to orient thetempromandibular joint and to orient the
casts on the articulator to the relationship ofcasts on the articulator to the relationship of
the opening axis of the tempromandibularthe opening axis of the tempromandibular
joint” -joint” - GPTGPT
www.indiandentalacademy.comwww.indiandentalacademy.com
3. 33
HISTORY AND DEVELOPMENT OFHISTORY AND DEVELOPMENT OF
FACE BOWFACE BOW
In 1866,In 1866, Francis H BalkwillFrancis H Balkwill introduced anintroduced an
instrument for measuring the angle formedinstrument for measuring the angle formed
between the plane of two lines drawn from thebetween the plane of two lines drawn from the
articulating surfaces of the condyle on to thearticulating surfaces of the condyle on to the
incisal point and the occlusal plane.incisal point and the occlusal plane.
He estimated this angle now known as theHe estimated this angle now known as the
BALKWILL’S ANGLE.BALKWILL’S ANGLE.
-It has an average value of 26°-It has an average value of 26°
www.indiandentalacademy.comwww.indiandentalacademy.com
5. 55
In 1889, CHARLES E.LUCE used what he called
the photographic method to record the relative
movements of 3 points on the mandible, the condyle,
the angle and the symphisis.
Luces results corroborated Balkwill’s findings and
there was considerable individual variations in the
relative movement of the condyle, the angle and the
symphisis. www.indiandentalacademy.comwww.indiandentalacademy.com
7. 77
In 1896, WILLIAM E.WALKER introduced
the facial clinometer
-designed to determine the angle of the
condylar paths on the face
Origin of extraoral method for recording
mandibular movements
It didn’t allow for active transfer of the cast in
the articulator
www.indiandentalacademy.comwww.indiandentalacademy.com
9. 99
In 1884, GEORGE K. BAGBY, obtained a
patent for the Jaw gauge.
This is described as the attachment to determine
the location of the impression models in the
articulators.
In 1889, RICHMOND S. HAYES introduced the
first example of a functional face bow like device.
It was used for locating the position of casts
correctly in the articulator and he named it as the
Articulating caliper.www.indiandentalacademy.comwww.indiandentalacademy.com
10. 1010
In 1889,GEORGE B.SNOW developed the face
bow which carries the relationship between the
maxilla and the condyles, from the patient to the
articulator.
The snow type of face bow uses estimated
marks on the skin at the condyle points as the hinge
axis position.
Snow used the ala-tragus line as the plane of
reference.
www.indiandentalacademy.comwww.indiandentalacademy.com
12. 1212
In 1908, GYSI developed a face bow primarily to
record the paths of the condyle.
Gysi used the prosthetic plane which is similar
to the camper’s plane as the plane of reference
In 1902,JOHN B.PARFITT introduced his
anatomical articulator also called a model jaw.
PARFITT introduced two mandibular face
bows one to transfer the casts to the articulator and
another one to produce the record of the contour of
the condylar path.
www.indiandentalacademy.comwww.indiandentalacademy.com
15. 1515
In 1924,WADSWORTH introduced a
‘T’attachment type of a face bow.
It used a third point of reference indicator to
determine the vertical position.
This reference point is based on the naso-optic
condylar triangle.
www.indiandentalacademy.comwww.indiandentalacademy.com
17. 1717
Many modifications evolved out of the snow
face bow.
The new trend of using the infra orbital pointer
as the third point of reference was invented in the
late 1920’s.
The Hanau, Bergstrom and the Dentatus
company where among the first to adopt it.
it’s true origin is unknown.
www.indiandentalacademy.comwww.indiandentalacademy.com
18. 1818
CLASSIFICATIONCLASSIFICATION
ARBITRARY FACEBOW
i) Facia facebow
ii) Ear piece facebow
- with orbital indicator
- with nasal relator
ACTUAL VALUE FACEBOW
(kinematic or hinge axis facebow)www.indiandentalacademy.comwww.indiandentalacademy.com
20. 2020
PARTS OF A FACE BOWPARTS OF A FACE BOW
““U” shaped frameU” shaped frame
- all other components of the face bow are- all other components of the face bow are
attached to the frame with the clamps.attached to the frame with the clamps.
- it records the plane of the cranium.- it records the plane of the cranium.
Condylar rodsCondylar rods
- these are two small metallic rods on either- these are two small metallic rods on either
side of the free end of the “U”shaped frameside of the free end of the “U”shaped frame
- it helps to locate the hinge axis or the- it helps to locate the hinge axis or the
opening axis of the TMJ.opening axis of the TMJ.
www.indiandentalacademy.comwww.indiandentalacademy.com
21. 2121
Bite fork
-it’s a U shaped plate which is attached to the
occlusal rims while recording the orientation
relationship.
Locking device
-part of the face bow that attaches the bite fork to
the U shaped frame.
-also supports the face bow,occlusal rims and the
casts during articulation.
www.indiandentalacademy.comwww.indiandentalacademy.com
22. 2222
Orbital pointer
-it marks the anterior reference point
-it can be locked in positioned with a clamp
-it only present in the arbitary face bow
www.indiandentalacademy.comwww.indiandentalacademy.com
23. 2323
KINEMATIC FACEBOWKINEMATIC FACEBOW
Used to locate the true terminal hinge axisUsed to locate the true terminal hinge axis
Difficult to perform accurately in edentulousDifficult to perform accurately in edentulous
situations due to REALEFFsituations due to REALEFF
Indicated for the fabrication of FPDIndicated for the fabrication of FPD
www.indiandentalacademy.comwww.indiandentalacademy.com
25. 2525
ARBITRARY FACEBOWARBITRARY FACEBOW
The condylar rods are positionedThe condylar rods are positioned
approximately 13mm anterior to the auditoryapproximately 13mm anterior to the auditory
meatus on the cantho-tragal line.meatus on the cantho-tragal line.
This locates the rods within 5mm of the trueThis locates the rods within 5mm of the true
hinge axis of the jaw.hinge axis of the jaw.
This is commonly used in complete dentureThis is commonly used in complete denture
constuction.constuction.
www.indiandentalacademy.comwww.indiandentalacademy.com
27. 2727
TYPESTYPES
Facia typeFacia type
-Posterior reference point is 13mm anterior to-Posterior reference point is 13mm anterior to
external auditory meatusexternal auditory meatus
-Anterior reference point is the orbitale-Anterior reference point is the orbitale
Ear piece typeEar piece type
-Posterior reference point is the EAM-Posterior reference point is the EAM
-Anterior reference point is the orbitale-Anterior reference point is the orbitale
www.indiandentalacademy.comwww.indiandentalacademy.com
28. 2828
Denar facebow
-Ant. reference is 43mm above the incisal
edge of right central or lateral incisor
-It is marked using a denar reference plane
locator
Twirl bow
-It relates the maxillary arch with the
frankfort horizontal plane
-It doesn’t require any physical attachment
to the article www.indiandentalacademy.comwww.indiandentalacademy.com
30. 3030
Whipmix facebow (quick mount FB)
-Nasion related assembly with a plastic nose
piece which determines the anterior reference
point
-It has a built in hinge axis locator ;
automatically locates the hinge axis
www.indiandentalacademy.comwww.indiandentalacademy.com
31. 3131
HINGE AXISHINGE AXIS
Hinge axis is an imaginary line around whichHinge axis is an imaginary line around which
the condyles can rotate without translationthe condyles can rotate without translation
In 1921,McCollum,Stuart reported theIn 1921,McCollum,Stuart reported the
discovery of first method locating hinge axisdiscovery of first method locating hinge axis
Controversies as to the presence of a singleControversies as to the presence of a single
axis,the method and validity of recording theaxis,the method and validity of recording the
position on the skin have arisen becauseposition on the skin have arisen because
mechanical equipment is used to recordmechanical equipment is used to record
movements involving living tissuesmovements involving living tissues
www.indiandentalacademy.comwww.indiandentalacademy.com
32. 3232
TERMINAL HINGE AXISTERMINAL HINGE AXIS
((TRANSVERSE HINGE AXIS)TRANSVERSE HINGE AXIS)
It is an imaginary line which passesIt is an imaginary line which passes
horizontally through the rotational centers ofhorizontally through the rotational centers of
the right and left condyles when they are in thethe right and left condyles when they are in the
most distal retruded position in their respectivemost distal retruded position in their respective
glenoid fossaglenoid fossa
The technique for locating the terminal hingeThe technique for locating the terminal hinge
axis position is the same for dentulous andaxis position is the same for dentulous and
edentulous patientsedentulous patients
www.indiandentalacademy.comwww.indiandentalacademy.com
33. 3333
The hinge axis locating bow is attached rigidlyThe hinge axis locating bow is attached rigidly
to the mandible by means of a clutchto the mandible by means of a clutch
Clutch is cemented over the teeth or clamp toClutch is cemented over the teeth or clamp to
the edentulous ridgethe edentulous ridge
Mandible is manipulated to the centric relationMandible is manipulated to the centric relation
The patient makes guided opening and closingThe patient makes guided opening and closing
movements within the range of hinge openingmovements within the range of hinge opening
Adjustments are made untill the stylii on theAdjustments are made untill the stylii on the
hinge axis bow only spinhinge axis bow only spin
This indicates that the stylii are co-linear withThis indicates that the stylii are co-linear with
the mandibular hinge axisthe mandibular hinge axiswww.indiandentalacademy.comwww.indiandentalacademy.com
34. 3434
ARBITRARY HINGE AXISARBITRARY HINGE AXIS
Most indirect techniques in dentistry does not requireMost indirect techniques in dentistry does not require
the accuracy of locating the true hinge axisthe accuracy of locating the true hinge axis
WEINBERGWEINBERG in a study evaluated the degree of errorin a study evaluated the degree of error
of axis location and its relationship to the occlusionof axis location and its relationship to the occlusion
of teethof teeth
He concluded that ‘the transverse hinge axis locationHe concluded that ‘the transverse hinge axis location
and the subsequent face bow transfer within a 5mmand the subsequent face bow transfer within a 5mm
error is a practical and dependable method forerror is a practical and dependable method for
orienting the maxillary cast’orienting the maxillary cast’
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FACEBOW TRANSFERFACEBOW TRANSFER
ARBITRARY AXIS FOR HANAUARBITRARY AXIS FOR HANAU
FACEBOWFACEBOW
- Richey condylar marker is used to scribe an- Richey condylar marker is used to scribe an
arc 13mm anterior to the external auditoryarc 13mm anterior to the external auditory
meatus.meatus.
- using a ruler, a line is drawn from outer- using a ruler, a line is drawn from outer
canthus of the eye to the tragus of the ear.canthus of the eye to the tragus of the ear.
- the point where the line intersects the arc- the point where the line intersects the arc
locates the arbitrary axislocates the arbitrary axis
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The bite fork is heated and inserted in to the
maxillary rim parallel to the occlusal plane.
The recording base is inserted into the mouth,
the extension rod is pass through the locking
device.
The condylar rods are oriented over the arbitrary
centres of rotation.
They are moved from side to side untill the
readings on the condyle rod scales are same on
both sides
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The cross bars should be parallel to a line
between the pupils of the eye
The lock nuts at the condyle rods are tightened to
suspend the facebow and the bite fork is securely
attached
Condylar lock nuts are released and the facebow
and occlusal rim are transferred to the articulator
The instrument is locked in centric with the
incisal pin flush with the upper member
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The facebow is adjusted by the elevating screw
to align the occlusal plane with the groove mark
on the half-way point of the incisal pin
A hanau mounting support or prop may be
necessary to support the weight of maxillary cast
and plaster during mounting
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INDICATIONSINDICATIONS
Cusp form of teeth are usedCusp form of teeth are used
Balanced occlusion in the eccentric positionBalanced occlusion in the eccentric position
are desiredare desired
Interocclusal check records are used forInterocclusal check records are used for
verification of jaw positionverification of jaw position
Occlusal vertical dimension is subject toOcclusal vertical dimension is subject to
change and alteration of tooth occlusalchange and alteration of tooth occlusal
surfaces are necessary to accommodate thesurfaces are necessary to accommodate the
changeschanges
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CONCLUSIONCONCLUSION
Blind orientation of the maxillary casts on aBlind orientation of the maxillary casts on a
articulator will result in errorsarticulator will result in errors
The elimination of errors that can be producedThe elimination of errors that can be produced
by failure to use a facebow where indicated,by failure to use a facebow where indicated,
justifies the time required and the proceduresjustifies the time required and the procedures
involved in the facebow transferinvolved in the facebow transfer
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REFERENCES:
1. Essentials of complete denture prosthodontics-
Sheldon winkler
2. Syllabus of complete dentures- Charles M.Heartwell
3. Prosthodontic treatment for edentulous patients-
George A.Zarb
4. History of articulators from face bow to gnathograph-
JPD vol:10 dec2001
5. Appearance and early history of face bows- Journal of
prosthodontics vol:9 sep2000
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