This document defines and describes articulators, which are mechanical devices used to mount dental casts and simulate jaw movement. It discusses the functions of articulators, which include holding casts in a fixed relationship, simulating jaw movements like opening and closing, and fabricating dental restorations. The document also outlines the key requirements of articulators and different types, including hinge, mean-value, adjustable, and fully adjustable articulators. Articulators allow dentists to visualize a patient's occlusion, develop their occlusion outside of the mouth, and refine dental work without the patient present.
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.
Centric relation relevance and role in complete denture construction NAMITHA ANAND
This document discusses centric relation, which refers to the relationship between the mandible and skull when the condyles are in their most superior position in the mandibular fossa against the posterior slope of the articular eminence. It has gone through various changing definitions but is now widely accepted to mean the anterior-superior position. Recording centric relation is important for complete denture construction as it provides proprioceptive feedback and acts as the starting point for occlusion. There are various passive and active methods to retrude the mandible as well as intraoral and extraoral graphic methods to record the position.
The document discusses the importance of accurately transferring jaw relationships to an articulator. It describes the significance of the facebow in recording the maxillomandibular relationship, including the orientation of the jaws to the cranium. The document outlines the history of the facebow, types of facebows, and how to perform a facebow recording. The facebow is essential for transferring jaw relationships to simulate jaw movements when fabricating dental prostheses.
04- Occlusion in prosthodontics- Concepts of occlusion.pptAmal Kaddah
This document discusses concepts of occlusion for complete dentures. It describes the importance of balanced occlusion and outlines numerous philosophies that have been proposed over time for arranging artificial tooth occlusion, including theories from Gysi, Hanau, Pleasure, and Boucher. While no single superior approach has been proven, a balanced articulation that considers factors like condylar guidance, incisal guidance, and cuspal angle appears most appropriate for satisfying patient needs regarding comfort, function, and aesthetics.
This document provides an overview of balanced occlusion and its importance in complete denture fabrication. It defines key terms like balanced occlusion, centric occlusion, eccentric occlusion, and discusses various theories of occlusion. It describes the requirements and goals of balanced occlusion in complete dentures. Various concepts of balanced occlusion are outlined, including those proposed by Gysi, Sears, French, Pleasure, Frush, Hanau and others. The document discusses the advantages of bilateral balanced occlusion and factors that affect achieving balanced occlusion in complete dentures.
Occlusion refers to the relationship between opposing teeth when the jaws are closed. There are several types of complete denture occlusion including balanced, monoplane, and lingualized occlusion. Balanced occlusion involves simultaneous anterior and posterior tooth contacts on both sides during chewing and is unique to dentures but enhances stability. It requires a minimum of three contact points. Monoplane occlusion uses non-anatomic teeth without cuspal height for a simpler arrangement, while lingualized occlusion positions the maxillary lingual cusps against the mandibular teeth. Both have advantages and disadvantages related to function, forces, and appearance. Proper planning of occlusion is important for complete dentures.
horizontal jaw relation in complete denturedipalmawani91
This document provides an overview of centric relation and how its definition has changed over time. It discusses the significance of centric relation as a reference position and reviews various theories about how it is achieved musculoskeletally. The document also examines the relationship between centric relation and centric occlusion, and describes different methods for recording centric relation, including static, functional, graphic, and physiological techniques. Factors that can influence the accuracy of centric relation records are also reviewed.
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.
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.
Centric relation relevance and role in complete denture construction NAMITHA ANAND
This document discusses centric relation, which refers to the relationship between the mandible and skull when the condyles are in their most superior position in the mandibular fossa against the posterior slope of the articular eminence. It has gone through various changing definitions but is now widely accepted to mean the anterior-superior position. Recording centric relation is important for complete denture construction as it provides proprioceptive feedback and acts as the starting point for occlusion. There are various passive and active methods to retrude the mandible as well as intraoral and extraoral graphic methods to record the position.
The document discusses the importance of accurately transferring jaw relationships to an articulator. It describes the significance of the facebow in recording the maxillomandibular relationship, including the orientation of the jaws to the cranium. The document outlines the history of the facebow, types of facebows, and how to perform a facebow recording. The facebow is essential for transferring jaw relationships to simulate jaw movements when fabricating dental prostheses.
04- Occlusion in prosthodontics- Concepts of occlusion.pptAmal Kaddah
This document discusses concepts of occlusion for complete dentures. It describes the importance of balanced occlusion and outlines numerous philosophies that have been proposed over time for arranging artificial tooth occlusion, including theories from Gysi, Hanau, Pleasure, and Boucher. While no single superior approach has been proven, a balanced articulation that considers factors like condylar guidance, incisal guidance, and cuspal angle appears most appropriate for satisfying patient needs regarding comfort, function, and aesthetics.
This document provides an overview of balanced occlusion and its importance in complete denture fabrication. It defines key terms like balanced occlusion, centric occlusion, eccentric occlusion, and discusses various theories of occlusion. It describes the requirements and goals of balanced occlusion in complete dentures. Various concepts of balanced occlusion are outlined, including those proposed by Gysi, Sears, French, Pleasure, Frush, Hanau and others. The document discusses the advantages of bilateral balanced occlusion and factors that affect achieving balanced occlusion in complete dentures.
Occlusion refers to the relationship between opposing teeth when the jaws are closed. There are several types of complete denture occlusion including balanced, monoplane, and lingualized occlusion. Balanced occlusion involves simultaneous anterior and posterior tooth contacts on both sides during chewing and is unique to dentures but enhances stability. It requires a minimum of three contact points. Monoplane occlusion uses non-anatomic teeth without cuspal height for a simpler arrangement, while lingualized occlusion positions the maxillary lingual cusps against the mandibular teeth. Both have advantages and disadvantages related to function, forces, and appearance. Proper planning of occlusion is important for complete dentures.
horizontal jaw relation in complete denturedipalmawani91
This document provides an overview of centric relation and how its definition has changed over time. It discusses the significance of centric relation as a reference position and reviews various theories about how it is achieved musculoskeletally. The document also examines the relationship between centric relation and centric occlusion, and describes different methods for recording centric relation, including static, functional, graphic, and physiological techniques. Factors that can influence the accuracy of centric relation records are also reviewed.
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.
An articulator is a mechanical device that represents the temporomandibular joints and jaw membranes to which maxilla and mandibular casts can be attached. It is used to simulate jaw movements when fabricating and testing dentures. The main components of an articulator include the upper and lower membranes, incisal guide table, condylar guidance, and incisal pin. Articulators allow visualization of occlusion and refinement of denture occlusion outside the mouth. However, they may not perfectly simulate jaw movements and cannot correct errors from the jaw relation procedure.
This document discusses surveyed crowns used for combined fixed and removable partial denture cases. It describes the treatment sequence including mounting diagnostic casts, creating a diagnostic wax-up to determine tooth preparations and restorative contours, making tooth preparations and provisional restorations, taking final impressions, and the laboratory procedures for the surveyed crown fabrication such as performing a wax-up and establishing the path of insertion for the removable partial denture.
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.
1. Occlusal adjustment involves modifying the occluding surfaces of teeth to equalize occlusal stress and produce simultaneous contacts during jaw movement.
2. Key rules for occlusal adjustment include LUBL for non-working side interferences, BULL for working side interferences, and DUML for protrusive interferences.
3. The sequence of occlusal adjustment involves first establishing maximum intercuspation in the centric relation position, then adjusting for lateral excursions and protrusive movements while following balancing occlusion principles.
- The key anatomic landmarks of the maxilla and mandible impact denture retention, stability, and support. A thorough understanding of these structures is essential for proper denture construction.
- Important maxillary landmarks include the incisive papilla, canine eminences, tuberosities, palatal seal area, and hamular notches. Important mandibular landmarks are the buccal shelf, mylohyoid ridge, retromolar pad, and external oblique line.
- Proper molding of these areas in a denture improves fit and reduces soreness, while inadequate adaptation can lead to pain or displacement of the denture.
Eccentric movements of mandibular movements/prosthodontic 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
www.indiandentalacademy.com
This document discusses the key factors involved in developing balanced occlusion for complete dentures. It outlines five main factors: 1) Condylar guidance, 2) Incisal guidance, 3) Plane of occlusion, 4) Compensating curves, and 5) Cusp angle. It describes how each factor influences mandibular movement and must be considered in relation to the others to achieve balanced occlusion without trauma to tissues. Formulas from Hanau and Theilmann relate these five factors and how modifying one requires adjusting the others to maintain occlusion balance.
Orientation relation with facebow and hinge axis and abvance in facebowPratik Hodar
This document provides information about orientation jaw relations and the terminal hinge axis. It defines orientation jaw relations as the relationship between the maxilla and cranium in the anteroposterior, lateral, and vertical planes. It discusses how the terminal hinge axis is the axis around which pure rotation occurs when the mouth is opened widely and the condyles are in their most superior position. The document also reviews the history of debates around the hinge axis and different studies that have been conducted on the topic.
This document discusses different types of articulators used in prosthodontics. It begins by describing the basic parts of an articulator including the upper member, lower member, mounting plates, condylar analogues, condylar guidance, and incisal guide pin and table. It then discusses various individual articulators in more detail like the mean-value, Hanau, Whip-Mix, and Denar articulators. Key features and components of different Hanau articulator models are provided. Programming and mounting procedures are summarized briefly.
3- Occlusion in prosthodontics- Factors affecting balanced occlusionAmal Kaddah
This document discusses the determinants and factors of occlusion for complete dentures. It outlines 5 key determinants: 1) condylar guidance, 2) incisal guidance, 3) plane of occlusion, 4) compensating curve, and 5) cusp angle of teeth. Each determinant influences occlusion and mandibular movement. The document explains how to establish balanced occlusion by properly relating these 5 factors, such as minimizing incisal guidance to reduce harmful tipping forces. Developing occlusion requires considering these determinants and their interrelationships.
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.
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.
The document discusses facebows, which are dental devices used to relate the maxillary arch to the axis of rotation of the temporomandibular joint. There are two main types: mandibular facebows, which locate the exact hinge axis, and maxillary facebows, which relate the maxilla to the hinge axis position and transfer this to the articulator. The facebow registration is important for duplicating jaw movements on the articulator and accurately mounting dental casts. The document describes the components, use, and landmarks of facebows.
This document discusses lingualized occlusion for removable prosthodontics. It begins by providing background on the search for ideal denture occlusion and defines lingualized occlusion. Key points include:
- Prof. Alfred Gysi first introduced the concept of lingualized occlusion in 1927 using maxillary teeth with single linear cusps fitting into shallow mandibular depressions.
- Lingualized occlusion aims to maintain esthetics and food penetration of anatomic teeth while providing the mechanical freedom of non-anatomic teeth. It utilizes anatomic maxillary teeth and modified non-anatomic mandibular teeth.
- The document outlines the evolution and advantages of lingualized occlusion and provides principles for its use in
This document discusses different types of tooth rests used in partial dentures. There are four main types: 1) Occlusal rests, which contact the biting surface of posterior teeth. 2) Lingual rests, which contact the inside surface of teeth. 3) Incisal rests, which contact the front surface of anterior teeth. 4) Embrasure hooks, which span the gap between two teeth. Occlusal rests are the most common type and involve preparing the tooth with a rounded triangular rest seat for the denture to fit into. The preparation aims to direct forces along the tooth's long axis and not raise the vertical biting dimension.
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
1. A tooth supported overdenture is a removable partial or complete denture that covers and receives support from one or more remaining natural teeth or dental implants.
2. It provides advantages like ridge preservation, improved retention, stability and support compared to conventional complete dentures.
3. Tooth supported overdentures can be classified based on the type of abutment preparation (coping vs non-coping) and the timing of placement (immediate, interim or definitive).
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
00919248678078
This document discusses obturators used for acquired maxillary defects. It begins by defining an obturator and reviewing the history of obturators dating back to Ambroise Pare in the 1540s. It then covers classifications of maxillary defects, designs of obturators for different defect classes, functions of obturators, materials used, and considerations for fabrication. The document emphasizes that obturators are designed to close tissue openings, restore oral function, and rehabilitate patients with maxillary defects through adequate support, retention and stability.
Presentation is about dental articulator as design, records required, advantages, disadvantages and movements available for each type. Also some information about face-bow.
An articulator is a mechanical device that represents the temporomandibular joints and jaw membranes to which maxilla and mandibular casts can be attached. It is used to simulate jaw movements when fabricating and testing dentures. The main components of an articulator include the upper and lower membranes, incisal guide table, condylar guidance, and incisal pin. Articulators allow visualization of occlusion and refinement of denture occlusion outside the mouth. However, they may not perfectly simulate jaw movements and cannot correct errors from the jaw relation procedure.
This document discusses surveyed crowns used for combined fixed and removable partial denture cases. It describes the treatment sequence including mounting diagnostic casts, creating a diagnostic wax-up to determine tooth preparations and restorative contours, making tooth preparations and provisional restorations, taking final impressions, and the laboratory procedures for the surveyed crown fabrication such as performing a wax-up and establishing the path of insertion for the removable partial denture.
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.
1. Occlusal adjustment involves modifying the occluding surfaces of teeth to equalize occlusal stress and produce simultaneous contacts during jaw movement.
2. Key rules for occlusal adjustment include LUBL for non-working side interferences, BULL for working side interferences, and DUML for protrusive interferences.
3. The sequence of occlusal adjustment involves first establishing maximum intercuspation in the centric relation position, then adjusting for lateral excursions and protrusive movements while following balancing occlusion principles.
- The key anatomic landmarks of the maxilla and mandible impact denture retention, stability, and support. A thorough understanding of these structures is essential for proper denture construction.
- Important maxillary landmarks include the incisive papilla, canine eminences, tuberosities, palatal seal area, and hamular notches. Important mandibular landmarks are the buccal shelf, mylohyoid ridge, retromolar pad, and external oblique line.
- Proper molding of these areas in a denture improves fit and reduces soreness, while inadequate adaptation can lead to pain or displacement of the denture.
Eccentric movements of mandibular movements/prosthodontic 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
www.indiandentalacademy.com
This document discusses the key factors involved in developing balanced occlusion for complete dentures. It outlines five main factors: 1) Condylar guidance, 2) Incisal guidance, 3) Plane of occlusion, 4) Compensating curves, and 5) Cusp angle. It describes how each factor influences mandibular movement and must be considered in relation to the others to achieve balanced occlusion without trauma to tissues. Formulas from Hanau and Theilmann relate these five factors and how modifying one requires adjusting the others to maintain occlusion balance.
Orientation relation with facebow and hinge axis and abvance in facebowPratik Hodar
This document provides information about orientation jaw relations and the terminal hinge axis. It defines orientation jaw relations as the relationship between the maxilla and cranium in the anteroposterior, lateral, and vertical planes. It discusses how the terminal hinge axis is the axis around which pure rotation occurs when the mouth is opened widely and the condyles are in their most superior position. The document also reviews the history of debates around the hinge axis and different studies that have been conducted on the topic.
This document discusses different types of articulators used in prosthodontics. It begins by describing the basic parts of an articulator including the upper member, lower member, mounting plates, condylar analogues, condylar guidance, and incisal guide pin and table. It then discusses various individual articulators in more detail like the mean-value, Hanau, Whip-Mix, and Denar articulators. Key features and components of different Hanau articulator models are provided. Programming and mounting procedures are summarized briefly.
3- Occlusion in prosthodontics- Factors affecting balanced occlusionAmal Kaddah
This document discusses the determinants and factors of occlusion for complete dentures. It outlines 5 key determinants: 1) condylar guidance, 2) incisal guidance, 3) plane of occlusion, 4) compensating curve, and 5) cusp angle of teeth. Each determinant influences occlusion and mandibular movement. The document explains how to establish balanced occlusion by properly relating these 5 factors, such as minimizing incisal guidance to reduce harmful tipping forces. Developing occlusion requires considering these determinants and their interrelationships.
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.
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.
The document discusses facebows, which are dental devices used to relate the maxillary arch to the axis of rotation of the temporomandibular joint. There are two main types: mandibular facebows, which locate the exact hinge axis, and maxillary facebows, which relate the maxilla to the hinge axis position and transfer this to the articulator. The facebow registration is important for duplicating jaw movements on the articulator and accurately mounting dental casts. The document describes the components, use, and landmarks of facebows.
This document discusses lingualized occlusion for removable prosthodontics. It begins by providing background on the search for ideal denture occlusion and defines lingualized occlusion. Key points include:
- Prof. Alfred Gysi first introduced the concept of lingualized occlusion in 1927 using maxillary teeth with single linear cusps fitting into shallow mandibular depressions.
- Lingualized occlusion aims to maintain esthetics and food penetration of anatomic teeth while providing the mechanical freedom of non-anatomic teeth. It utilizes anatomic maxillary teeth and modified non-anatomic mandibular teeth.
- The document outlines the evolution and advantages of lingualized occlusion and provides principles for its use in
This document discusses different types of tooth rests used in partial dentures. There are four main types: 1) Occlusal rests, which contact the biting surface of posterior teeth. 2) Lingual rests, which contact the inside surface of teeth. 3) Incisal rests, which contact the front surface of anterior teeth. 4) Embrasure hooks, which span the gap between two teeth. Occlusal rests are the most common type and involve preparing the tooth with a rounded triangular rest seat for the denture to fit into. The preparation aims to direct forces along the tooth's long axis and not raise the vertical biting dimension.
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
1. A tooth supported overdenture is a removable partial or complete denture that covers and receives support from one or more remaining natural teeth or dental implants.
2. It provides advantages like ridge preservation, improved retention, stability and support compared to conventional complete dentures.
3. Tooth supported overdentures can be classified based on the type of abutment preparation (coping vs non-coping) and the timing of placement (immediate, interim or definitive).
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
00919248678078
This document discusses obturators used for acquired maxillary defects. It begins by defining an obturator and reviewing the history of obturators dating back to Ambroise Pare in the 1540s. It then covers classifications of maxillary defects, designs of obturators for different defect classes, functions of obturators, materials used, and considerations for fabrication. The document emphasizes that obturators are designed to close tissue openings, restore oral function, and rehabilitate patients with maxillary defects through adequate support, retention and stability.
Presentation is about dental articulator as design, records required, advantages, disadvantages and movements available for each type. Also some information about face-bow.
This lecture talk about dental articulators;types ;designs ;records ;movement ;advantages ;disadvantages ;face bow
Written by :
montaser adnan
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UNIVERSITY OF MOSUL/ COLLEGE of dentistry
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
The document discusses full removable prosthetics and articulators. It provides details on making individual trays, functional impressions, occlusal curves and planes, theories of articulation, and purposes and requirements of articulators. Common articulators discussed include the Mean-Value, Hanau Wide Vue, and their components like the upper and lower members, condylar guidance, incisal guide table, and incisal pin.
An articulator is a mechanical device that holds maxillary and mandibular dental casts in order to simulate jaw movements. It allows dentists to evaluate occlusion and plan dental treatments. The document defines articulators and describes their purposes, uses, requirements, types, components and limitations. Articulators are classified based on the occlusion theory they follow, the type of records used, their ability to simulate movements, and their degree of adjustability. They help dentists visualize occlusion, plan treatments, and fabricate restorations without requiring patient cooperation.
Articulators is a mechanical device which represents the temporo-mandibular joints and jaw members to which maxillary and mandibular casts may be attached.’’
Mean Value Articulator Classification
Classification According to Adjustability of Articulators:
Nonadjustable Articulators:
Semiadjustable Articulators:
Articulators in complete dentures by dr. anil goud asiandentalacademyAnil Goud
this ppt give you clear idea of what are different types of articulators are available and they are used. asian dental academy is one of the finest advanced dental education center in india where on patient training will be provided
This document discusses articulators, which are mechanical devices used to simulate jaw movements when mounting dental casts. It defines articulation and occlusion and describes the functions and advantages of articulators. It also covers the limitations of articulators and classifications of articulators based on adjustability, condylar element position, and instrument function. One type of articulator discussed in detail is the mean value articulator, which is non-adjustable and uses average values for condylar guidance and incisal relationships. The document provides specifications and descriptions of the components and functions of the mean value articulator. It concludes with procedures for articulation and links to videos demonstrating casting mounting and facebow transfer.
An articulator is a mechanical instrument that simulates the temporomandibular joint and jaws. It allows maxillary and mandibular casts to be attached to simulate jaw movements. Articulators can be classified based on the occlusion theory they follow (Bonwill, conical, spherical), their ability to simulate movements (classes I-IV), and their degree of adjustability (non-adjustable, semi-adjustable, fully adjustable). A mean value articulator is non-adjustable and uses average anatomical values. It allows only vertical movement and does not accept a facebow record. Semi-adjustable articulators allow some customization while fully adjustable articulators can reproduce each patient's unique jaw movements.
Articulators are mechanical devices that simulate the movements of the mandible. There are four classes of articulators: Class I are nonadjustable and only allow for opening and closing; Class II are average value articulators that allow some lateral movements; Class III are semi-adjustable and can be adjusted based on records but have fixed condylar paths; Class IV are fully adjustable and can accept dynamic records to accurately simulate a patient's jaw movements. Arcon articulators have fossae assemblies on the maxillary member while non-arcon are on the mandibular member, and arcon articulators better maintain the relationship between casts.
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Articulator /certified fixed orthodontic courses by Indian dental academy Indian dental academy
An articulator is a mechanical device that simulates the temporomandibular joint and jaw movements. It allows dentists to visualize a patient's occlusion outside of the mouth. The primary functions of an articulator are to act as a representative of a patient's jaw movements and simulate the temporomandibular joint. Articulators are classified based on the records used for adjustment, the theories of occlusion they are based on, and their adjustability. Early articulators included simple hinge and barn door designs, while modern articulators can accurately simulate three-dimensional jaw motion.
The document discusses the history and classification of articulators. It describes various types of articulators including mean value, semi-adjustable, and fully adjustable articulators. Key articulators mentioned include the Hanau, Whip Mix, and Denar articulators. Articulators are mechanical instruments that simulate jaw movements and are used for diagnosis, treatment planning, and the fabrication of dental restorations.
This document discusses articulators, which are mechanical devices used to simulate jaw movement. It begins by defining articulators and describing basic mandibular movements. It then discusses the basic components and classifications of articulators, including classifications based on adjustability and the location of condylar elements. Common articulators are described, including the Hanau articulator and mean value articulator. The relationship between the maxilla and mandible is transferred from patient to articulator using records like the facebow transfer and centric jaw relation record.
This document provides a review of articulators. It begins by defining an articulator as a mechanical device that simulates the temporomandibular joints and jaw movements to allow dental casts to be attached and simulate mandibular movements. The document then reviews the history of articulator development from the early plaster slab articulators to more advanced models. It discusses the uses, limitations, and classifications of articulators, including classifications based on the occlusion theory used, type of records used for adjustment, and the International Prosthodontic Workshop classification system. The review covers key articulator designs and their features over time as the understanding of jaw anatomy and movement evolved.
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.
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
This document discusses local anesthesia (LA), including its properties, mechanism of action, and effects on the nervous system. It focuses on the maxillary and mandibular nerves, describing their anatomy, branches, and innervation areas. LA works by blocking sodium channels in nerves, inhibiting the conduction of action potentials. This prevents the transmission of sensory information from peripheral nerves to the central nervous system, inducing numbness.
1. Cavities, also known as dental caries, are holes that damage the structure of teeth caused by a process of demineralization from food fermentation by bacteria. They are very common, especially in children and young adults.
2. Cavities develop when plaque is not thoroughly removed from the teeth, as the acids in plaque dissolve tooth enamel and create holes. If left untreated, cavities can grow large and destroy the tooth nerve.
3. Proper dental hygiene through regular brushing, flossing, and professional cleanings is important for preventing cavities. Fluoride treatments and limiting sugary foods and drinks are also recommended
Immediate placement and provisionalization of maxillary anterior single impla...Nguyễn Thị Minh Hiền
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2. mechanical device that represents the TMJ and jaws, to
which maxillary and mandibular casts are fixed to it; in a way
to reproduce already recorded positions of the mandible in
relation to the maxilla, to simulate jaw movement.
DEFINITION
3. 1. To hold the maxillary and mandibular casts in a
determined fixed relationship
2. Mounting of dental casts for diagnosis treatment
planning and patient presentation
3. To simulate the jaw movement like opening and closing.
4. Fabrication of occlusal surfaces for dental restoration &
fixed prosthodontic restorations (crowns, bridges, inlays
and onlays)
5. Arrangement of artificial teeth for complete and
removable partial denture
6. orthodontic appliances.
7. To diagnose the state of occlusion in both the natural
and artificial dentition.
8. To plan the dental procedures based on the relationship
between opposing natural and artificial teeth
9. e.x. Evaluation of the possibility of balance occlusion.
10. To correct and modify complete restorations.
11. To arrange artificial teeth.
Functions:
4. Two Types of Requirements
a. Minimal requirements
b. Additional requirements
5. 1. It must be accurately maintain the correct horizontal and vertical relationship
of the patient’s casts.
2. The casts should be easily removable and attachable to the articulator without
loosing their correct horizontal and vertical relationship
3. The articulator should have an incisal guide pin with a positive stop, that is
adjustable and calibrated.
4. should be able to open and closed in a hinge like fashion.
5. should accept a face-bow transfer, utilizing an anterior reference point.
6. The construction should be accurate, rigid and of non corrosive material.
7. The moving parts should move freely without any friction.
8. The non moving parts should be of a rigid construction.
9. adequate distance between the upper and lower members.
10. should be stable on the laboratory bench and not too bulky and heavy
Minimal requirements
6. condylar guides allowing right lateral, left lateral
movements
Condylar guides to allow protrusive movement.
The condylar guides should be adjustable in a
horizontal direction
having provision for adjustment of Bennett
movement.
adjustable in incisal and cuspid guidance
ADDITIONAL REQUIREMENT
7. The incisal guide table is either a mechanical
table that can be adjusted in the sagittal and
frontal planes or a table that can be
customized with auto polymerizing resin or by
grinding.
8. 1. Properly mounted casts allow the operator to better visualize the
patients occlusion, especially from lingual view.
2. Patient cooperation is not a factor when using an articulator. once
appropriate interocclusal records are obtained from the patient.
3. reduces the chair time, patient appointment time.
4. The refinement of complete denture occlusion in the mouth is extremely
difficult because of shifting denture bases and resiliency of the
supporting tissue.
after obtaining Inter occlusal records ,complete denture occlusion
can be refined outside the mouth on an articulator
5. More procedures can be delegated to auxiliary personnel when utilizing
an articulator for development of patients occlusion.
6. The patients saliva, tongue, and cheeks are not factors when using an
articulator.
ADVANTAGES
9. Metal, plastic articulators show errors in tooling,
(manufacturer).
It doesn’t not exactly simulate the functional
movements of the mandible.
Errors in jaw relation procedure are reproduced
as errors in the denture occlusion. Articulators
do not have any provision to indicate or correct
these errors.
LIMITATIONS
10. Several basis of classification of
articulator were proposed, some of
them are as follows.
A. Based on their function.
B. Based on theories of occlusion.
C. Based on the type of inter-occlusal
record been used.
D. Based on the adjustability of the
articulator.
CLASSIFICATION OF
ARTICULATORS
11.
12. The Disposable Articulator is a fast for
everyday use.
easy separation of upper and lower models
allows access to your work. It can be used with
your current pinning system and vertex rubber
based molds.
Disposable Articulator
13. At the international prosthodontic workshop on
complete denture occlusion at the university of
Michigan in 1972, the articulators classified based on
instrument capability, intent, recording procedure and
record acceptance
Class I : Hinge Type
Class II : Arbitrary – type A, type B, type C
Class III : Average - type A, type B
Class Iv : Special - type A, type B
BASED ON FUNCTION
14. These are simple capable of accepting a single registration.
They give only opening and closing action
Vertical motion may or may not be possible.
Use in cases where a tentative jaw relation
is done.
Exp.
Plaster slab articulator: (Rrelator)
Hinge joint articulator – GARIOT (1805)
Barn door articulator
CLASS I : simple hinge articulator
15. These articulator permits horizontal and
vertical movements but they do not orient the
movement to TMJ a face-bow.
TYPE A
TYPE B
TYPE C
CLASS II :Arbitrary articulators
16. Ex. Mean-Value articulator - GYSI
o They have two joints representing the TMJ, and they
permit eccentric motion
o These are fixed condylar path or mean value articulators:
It means the condylar path angle here is fixed at a certain
angle, which is the average value of population. It ranges
from 30°-40° from the horizontal
o The incisal guidance may be fixed to an average or may
be adjustable
o The upper cast can be mounted either by face bow
record or according to an average making use of the
Bonwill triangle.
Class II, type A:
17. They can perform:
1-Opening and closing.
2-Protrusive movement at a fixed
horizontal condylar path angle.
Essential features of the mean value
articulator. A, Condylar guidance
mechanism; B, Upper bow; C, Incisal
guide pin; D, Incisal guide plate; E,
Lower bow.
The Gysi articulator. a, Upper bow; b, Lower bow; c,
Condylar hinge; d, Movable incisal table; e, Mdline
indicator;
18. if three lines are drawn to join both condyles
and the tips of the lower central incisors, they
will form a triangle. On the average, it is an
equilateral triangle having 4 inch or nearly 10
cm sides.
Bonwills treiangle
19. TYPE B :-
Instruments in this class permit eccentric motion
based on arbitrary theory of motion and will not
accept a face-bow transfer.
Based on spheric theory of occlusion.
Ex. Monson’s articulator
Hall articulator
TYPE C :-
Instruments in this class permit eccentric
motion based on engraved records obtained from
the patient and will not accept a face-bow transfer
Ex.:- House’s articulator
20. This class of articulators differs from the fixed
condylar path articulators in that they can
accept eccentric records that are used to adjust
the condylar guidance of the articulator.
So the condylar path is not fixed but can be
adjusted
Either semi-adjustable or fully adjustable
Class III :adjustable
articulators
Essential features of the
adjustable articulator. A,
Adjustable condylar
mechanism; B, Upper bow;
C. Incisal guide pin; D,
Adjustable incisal guide
plate; E, lower bow.
21. SEMI ADJUSTABLE A.
Have adjustable horizontal condylar paths,
adjustable lateral condylar path adjustable
incisal guide table and adjustable inter
condylar distance.
They don’t accept lateral records
They can accept the following records:
1. Face bow record to mount the upper cast.
2. Centric relation record to mount the lower cast.
3. Protrusive record, to adjust the articulator's horizontal guidance,
that correspond to the patient's horizontal condylar path inclination.
The lateral condylar guidance is adjusted according to the Hanau's
formula: L = H/8+12
L: The lateral condylar inclination, H: The horizontal condylar
inclination.
An example of this type is Hanau model H articulator.
22. FULLY ADJUSTABLE A.
This type of articulators accept the following records:
1. Face bow record to mount the upper cast.
2. Centric relation record to mount the lower cast.
3. Protrusive record, to adjust the articulator's horizontal condylar guidance
which corresponds to the patient's horizontal condylar path inclination.
4. Right lateral record, to adjust the right lateral condylar guidance.
5. Left lateral record, to adjust the left lateral condylar guidance.
House, Phillips, and Hanau ki-noscope are representative of this type of
articulators. Stuart Gnathoscope Simulator
Capable of being adjusted to follow the
mandibular movement in all direction.
They don't have a condylar guidance instead
they have receptacles
23. Another classification depends on the location of the
condyle whether in the upper or lower member of the
articulator. (Acron & non-Acron)
An Acron articulator has condylar guidance
similar to that in the skull.
In this type of articulator the condyles are
located on the lower member of the
articulator
the condylar guidance is on the upper
member.
In this manner the condyles move in a
relationship to their condylar guidance
similar to the way the natural condyle moves
in relation to the glenoid fossa.
The name is derived from the first letters of the
expression articulator and condylar. (Arcon)
24. Non- Acron
Articulators of this type
have the condyles on the
upper member of the
articulator
and the condylar guidance
on the lower member.
For complete denture
25. These articulator permit horizontal and vertical motion and they do
accept face-bow transfer but these facility is limited.
These instruments simulate condylar pathways by using average or
mechanical equivalents for the whole or part of the condylar
motion.
can be either Type A or Type B
TYPE A :-
a. They accept a face-bow transfer and a protrusive interocclusal
record.
Exp. Hanau H articulator- RUDOLPH HANAU (1923)
Hanau H2 articulator
Bergstrom articulator (ARCON)
CLASS III
26. TYPE B :-
Instrument in this class accept a face-bow
transfer, protrusive interocclusal records, and
some lateral interocclusal records.
e.x..Trubyte articulator - GYSI
Tripod articulator - STANSBERRY
Ney articulator - De Pietro (1960)
Hanau (130-21) - Richard Beu &
James Janik (1964)
Tele Dyne articulator - Richard Beu (1975)
Pandent articulator - Robert Lee
27. These articulator accept three dimensional dynamic registration.
They are capable of accurately reproducing the condylar pathway for each
patient.
TYPE A :-
Instruments in this class will accept three dimensional dynamic
registration and utilize a face-bow transfer.
The condylar pathways are formed by registration engraved by the
patient.
Exp. TMJ articulator – Kenneth Swanson
(1965)
TYPE B :-
Similar to type A; condylar pathway can be selectively angled and
customized, utilizing pantographic tracing.
e.x. Pantronic articulator – Dener (1982)
Gnathoscope - Charls Stuart
D 4A & D 5A - Niles Guichet
Simulator - Earnest Granger
CLASS IV
28. THEORIES OF ARTICULATORS
Known as theory of
equilateral triangle.
Allow lateral
movement & permit
movement in
horizontal plane.
A. Bonwill theory articulator – WG A Bonwill.
29. Lower teeth move
over the surface of
the upper teeth as
over the surface of
a cone generating an
angle of 45 degree.
B. Conical theory articulator – R. E. HALL
30. Lower teeth move over the surface of the
upper teeth as over a surface of sphere with a
diameter of 8 inches.
The center was located in the region of
glabella.
C. Spherical theory articulator–G.S.MONSON
31. upper member – represent maxilla
lower member – represent mandible
condylar track
condylar element
vertical rod (incisal pin)
incisal guide table
BASIC COMPONENT OF
AN ARTICULATOR
33. Incisal guide table
A table which upper surface is concave.
Vertical Rod should rest on the center of the
incisal guide table during articulation.
Vertical Incisal rod
Helps to keep a fixed distance between the
upper & lower member at anterior end.
The pointed tip of vertical rod should rest on the
center of incisal guide during articulation.
The horizontal guide pin
Present at the mid point of vertical rod.
The midline of the incisal edge of the should
touch the tip of incisal pin during articulation.
It present the anterior reference point.
34. customized incisal guide table.
The slope of the incisal guide table can be changed in
the antero-posterior direction & can lock in position with
a lock nut.
During articulation it should be flat & the incisal pin
should be at in center.
A pair of lateral wings is present around it.