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 twin block therapy. It discusses the history, philosophy, design, construction, and stages of treatment using twin blocks. Twin blocks are functional appliances composed of separate upper and lower bite blocks. They are worn 24 hours a day to achieve rapid correction of malocclusions through forces transmitted to inclined planes covering the posterior teeth. Treatment typically involves an initial active phase followed by a support phase to stabilize results.
This document discusses Steiner's acceptable compromises for compensating for sagittal discrepancies between the upper and lower jaws. It provides guidelines for adjusting the positions of the upper and lower incisors based on the ANB angle. A case example is used to illustrate how to predict changes to the ANB angle through growth or treatment and adjust incisor positions accordingly. The document also discusses individualizing treatment proposals based on factors like soft tissue function.
The document discusses orthodontic triage, which is the process of distinguishing moderate orthodontic treatment problems from complex cases. It outlines five steps for orthodontic triage: examining syndromes and developmental abnormalities, performing facial profile analysis, assessing dental development, analyzing space problems, and identifying other occlusal discrepancies. The document also discusses criteria for selecting growth modification patients and managing various orthodontic issues like crossbites, eruption problems, and space deficiencies.
This document discusses molar distalization, which is an alternative method for gaining space when treating orthodontic patients with space deficiencies. It provides the history of molar distalization, indications and contraindications for its use, different appliance options, and considerations for appliance selection. Molar distalization involves using orthodontic appliances to distalize or move the molars backwards in the dental arch in order to gain space.
This document discusses various types of intrusion arches used in orthodontics to correct deep overbites. It begins by defining intrusion and describing the biomechanics and principles involved. It then covers 9 specific intrusion arch designs: 1) Rickett's Utility Arch 2) Tipback Springs 3) Burstone's Continuous Intrusion Arch 4) Burstone's Three Piece Intrusion Arch 5) K-SIR 6) Connecticut Intrusion Arch 7) PG Retraction Spring 8) Translation Arch 9) Lingual Arch for intruding lower incisors. For each type, it provides details on materials, design, and mechanics of intrusion.
This document discusses the classification, causes, and treatment options for Class II and Class III malocclusions. It begins with an overview of Class II malocclusions, including the dental and skeletal classifications. Common causes are discussed, such as heredity and environmental factors. Treatment options for Class II malocclusions include camouflage with orthodontics alone, extraction of premolars with orthodontics, and distalization of maxillary molars with appliances or temporary skeletal anchorage. Class III malocclusions are also briefly covered, discussing etiology, classification, and treatment including camouflage or surgical options.
Introduction
History
Indications and contraindications
Timing of distalization
Second molar extraction
Mandibular molar distalization
Rickett’s criterion
Classification and various distalization appliances
References
This document discusses various methods and appliances for distalizing maxillary molars, including removable and fixed options. Removable appliances discussed include extraoral traction using headgear as well as removable appliances with finger springs or sliding jigs. Fixed appliances discussed include intramaxillary devices like Wilson's 3D appliance as well as intermaxillary appliances like Herbst or Jasper Jumper. Factors like the presence of second molars, skeletal pattern, and growth prognosis must be considered when determining whether molar distalization is indicated.
This document provides an overview of twin block therapy. It discusses the history, philosophy, design, construction, and stages of treatment using twin blocks. Twin blocks are functional appliances composed of separate upper and lower bite blocks. They are worn 24 hours a day to achieve rapid correction of malocclusions through forces transmitted to inclined planes covering the posterior teeth. Treatment typically involves an initial active phase followed by a support phase to stabilize results.
This document discusses Steiner's acceptable compromises for compensating for sagittal discrepancies between the upper and lower jaws. It provides guidelines for adjusting the positions of the upper and lower incisors based on the ANB angle. A case example is used to illustrate how to predict changes to the ANB angle through growth or treatment and adjust incisor positions accordingly. The document also discusses individualizing treatment proposals based on factors like soft tissue function.
The document discusses orthodontic triage, which is the process of distinguishing moderate orthodontic treatment problems from complex cases. It outlines five steps for orthodontic triage: examining syndromes and developmental abnormalities, performing facial profile analysis, assessing dental development, analyzing space problems, and identifying other occlusal discrepancies. The document also discusses criteria for selecting growth modification patients and managing various orthodontic issues like crossbites, eruption problems, and space deficiencies.
This document discusses molar distalization, which is an alternative method for gaining space when treating orthodontic patients with space deficiencies. It provides the history of molar distalization, indications and contraindications for its use, different appliance options, and considerations for appliance selection. Molar distalization involves using orthodontic appliances to distalize or move the molars backwards in the dental arch in order to gain space.
This document discusses various types of intrusion arches used in orthodontics to correct deep overbites. It begins by defining intrusion and describing the biomechanics and principles involved. It then covers 9 specific intrusion arch designs: 1) Rickett's Utility Arch 2) Tipback Springs 3) Burstone's Continuous Intrusion Arch 4) Burstone's Three Piece Intrusion Arch 5) K-SIR 6) Connecticut Intrusion Arch 7) PG Retraction Spring 8) Translation Arch 9) Lingual Arch for intruding lower incisors. For each type, it provides details on materials, design, and mechanics of intrusion.
This document discusses the classification, causes, and treatment options for Class II and Class III malocclusions. It begins with an overview of Class II malocclusions, including the dental and skeletal classifications. Common causes are discussed, such as heredity and environmental factors. Treatment options for Class II malocclusions include camouflage with orthodontics alone, extraction of premolars with orthodontics, and distalization of maxillary molars with appliances or temporary skeletal anchorage. Class III malocclusions are also briefly covered, discussing etiology, classification, and treatment including camouflage or surgical options.
Introduction
History
Indications and contraindications
Timing of distalization
Second molar extraction
Mandibular molar distalization
Rickett’s criterion
Classification and various distalization appliances
References
This document discusses various methods and appliances for distalizing maxillary molars, including removable and fixed options. Removable appliances discussed include extraoral traction using headgear as well as removable appliances with finger springs or sliding jigs. Fixed appliances discussed include intramaxillary devices like Wilson's 3D appliance as well as intermaxillary appliances like Herbst or Jasper Jumper. Factors like the presence of second molars, skeletal pattern, and growth prognosis must be considered when determining whether molar distalization is indicated.
This document discusses the management of open bite malocclusions. It begins by defining open bite and classifying it as either skeletal or dental in nature. Skeletal open bite is caused by excessive vertical growth of the jaws while dental open bite is due to reduced incisor height. Common etiologies of open bite include thumb sucking habits, tongue thrusting, and abnormal skeletal growth patterns. The document outlines various treatment approaches for different open bite classifications and etiologies.
The document discusses various concepts related to mandibular growth rotations proposed by different orthodontic researchers over time. It begins by introducing Arne Bjork who first described growth rotations in 1955. It then covers Enlow's concept of remodeling and displacement rotations. Bjork's 1969 classification of forward and backward mandibular rotations is described, including his identification of three types of forward and two types of backward rotations based on their center of rotation. The document also discusses concepts by Bjork and Skieller on total, matrix, and intramatrix rotations. Fred Schudy's concept relating rotation to the disharmony between vertical, anteroposterior and horizontal growth is summarized. Finally, Dibbets' re
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 describes Dr. Duane Grummons' posteroanterior (PA) cephalometric analysis for evaluating facial asymmetry. The analysis involves constructing reference lines and planes to compare bilateral landmarks and structures. Measurements are made of linear distances, angles, ratios and volumetric comparisons. The comprehensive analysis evaluates multiple structures and parameters while the summary analysis focuses on key dental and skeletal factors. The analysis is useful for orthodontic-surgical treatment planning to determine the extent and location of asymmetries and surgical corrections needed.
This document provides a history of the evolution of bonding in orthodontics from the 1960s to present day. It discusses key developments such as the introduction of acid etching by Buonocore in the 1950s, the early use of epoxy and composite resins for bonding by Newman and Miura in the 1960s-1970s, the introduction of visible light curing systems in the 1980s, and the development of self-etching primers in the 2000s. Bonding has evolved from using fillings materials to specialized orthodontic bonding resins and primers, and techniques now allow bonding to both dry and wet enamel surfaces.
Moment to force ratio final presentation /certified fixed orthodontic 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.
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
This document discusses several orthodontic appliances including the Nance appliance, transpalatal arch, quad helix, lip bumper, and tongue crib. It provides details on the design, indications, mechanisms of action, advantages and disadvantages of each appliance. The document is intended as an educational guide for orthodontic residents, as it is presented by several orthodontists and covers the key aspects of these common fixed functional appliances.
COS definition, development and treatment in orthodontics. Deep overbite and reverse curve. Different ways to level the COS. intrusion, extrusion or both.
Orthodontic tooth movements and biomechanics.Sk Aziz Ikbal
The document discusses biomechanics principles related to orthodontic tooth movement. It covers topics such as:
- Forces applied to teeth can cause movement through bone remodeling.
- Biomechanics refers to mechanics applied to biological systems. Knowledge of forces is needed to control orthodontic treatment.
- Teeth can move through light forces during normal function but heavier sustained forces over 1 second are needed for orthodontic tooth movement.
- Forces have magnitude and direction, while scalars only have magnitude. Resultant forces and moments from multiple applied forces are calculated.
- Different force systems and moment-to-force ratios produce different types of tooth movement such as tipping, translation, rotation, and torque.
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 growth rotations of the maxilla and mandible. It defines various types of rotations that can occur, including forward and backward rotations. Forward rotation of the mandible is classified into three types (A, B, C) based on the center of rotation. Implant radiography techniques are used to measure and classify rotations by observing changes in implant positioning over time. Rotations influence tooth eruption and the ultimate positioning of teeth, which impacts orthodontic treatment planning.
The Steiner analysis was one of the first modern cephalometric analyses. It emphasized the interrelationships between measurements and offered guidelines for treatment planning based on predicted changes from growth and orthodontic therapy. The analysis includes skeletal, dental, and soft tissue measurements. Key skeletal measurements include SNA, SNB, and ANB angles. Key dental measurements include UI-NA and LI-NB angles and distances. The Holdaway ratio evaluates lower incisor prominence. The S-line assesses lower facial balance.
Dr. Viken Sassouni developed a cephalometric analysis method based on craniofacial x-rays of 100 children. He identified planes, arcs, and points to analyze facial proportions and classify facial patterns. A well-proportioned face has four planes intersecting at point O and equal upper/lower anterior and posterior facial heights. Sassouni found most faces were Type II patterns. His analysis considered vertical and horizontal relationships and classified occlusions, palates, profiles, and dental axes. He concluded that "normal" is relative and proportions are more important than absolute measurements.
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 document discusses the Wits appraisal method for assessing sagittal jaw disharmony. It describes how the Wits appraisal aims to eliminate variations caused by rotations and vertical dimensions seen in measurements like ANB. The Wits appraisal involves drawing perpendiculars from points A and B on the maxilla and mandible to the occlusal plane, and measuring the distance between where they intersect. Studies have found the average distance in males to be 1mm forward for B point, and in females the points generally coincide. The Wits appraisal is said to better reflect the severity of class II and III malocclusions compared to ANB alone. It is influenced less by variations in the cranial base and rotations.
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
Anchorage in beggs technique /certified fixed orthodontic courses by Indian d...Indian dental academy
Welcome to 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 has a unique training program & curriculum that provides students with exceptional clinical skills and enabling them to return to their office with high level confidence and start treating patients
State of the art comprehensive training-Faculty of world wide repute &Very affordable.
Anchorage /certified fixed orthodontic courses by Indian dental academy Indian dental academy
This document discusses anchorage and its management in stage 1 of Begg orthodontic treatment. It defines anchorage and its importance in orthodontics. It describes how anchorage is obtained through the anchorage bend technique in Begg appliances to facilitate retraction and intrusion of anterior teeth. It discusses factors like force levels and locations of anchorage bends that influence anchorage control. It also covers potential causes of anchorage loss and ways to prevent anchorage loss in stage 1 treatment.
This document discusses the management of open bite malocclusions. It begins by defining open bite and classifying it as either skeletal or dental in nature. Skeletal open bite is caused by excessive vertical growth of the jaws while dental open bite is due to reduced incisor height. Common etiologies of open bite include thumb sucking habits, tongue thrusting, and abnormal skeletal growth patterns. The document outlines various treatment approaches for different open bite classifications and etiologies.
The document discusses various concepts related to mandibular growth rotations proposed by different orthodontic researchers over time. It begins by introducing Arne Bjork who first described growth rotations in 1955. It then covers Enlow's concept of remodeling and displacement rotations. Bjork's 1969 classification of forward and backward mandibular rotations is described, including his identification of three types of forward and two types of backward rotations based on their center of rotation. The document also discusses concepts by Bjork and Skieller on total, matrix, and intramatrix rotations. Fred Schudy's concept relating rotation to the disharmony between vertical, anteroposterior and horizontal growth is summarized. Finally, Dibbets' re
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 describes Dr. Duane Grummons' posteroanterior (PA) cephalometric analysis for evaluating facial asymmetry. The analysis involves constructing reference lines and planes to compare bilateral landmarks and structures. Measurements are made of linear distances, angles, ratios and volumetric comparisons. The comprehensive analysis evaluates multiple structures and parameters while the summary analysis focuses on key dental and skeletal factors. The analysis is useful for orthodontic-surgical treatment planning to determine the extent and location of asymmetries and surgical corrections needed.
This document provides a history of the evolution of bonding in orthodontics from the 1960s to present day. It discusses key developments such as the introduction of acid etching by Buonocore in the 1950s, the early use of epoxy and composite resins for bonding by Newman and Miura in the 1960s-1970s, the introduction of visible light curing systems in the 1980s, and the development of self-etching primers in the 2000s. Bonding has evolved from using fillings materials to specialized orthodontic bonding resins and primers, and techniques now allow bonding to both dry and wet enamel surfaces.
Moment to force ratio final presentation /certified fixed orthodontic 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.
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
This document discusses several orthodontic appliances including the Nance appliance, transpalatal arch, quad helix, lip bumper, and tongue crib. It provides details on the design, indications, mechanisms of action, advantages and disadvantages of each appliance. The document is intended as an educational guide for orthodontic residents, as it is presented by several orthodontists and covers the key aspects of these common fixed functional appliances.
COS definition, development and treatment in orthodontics. Deep overbite and reverse curve. Different ways to level the COS. intrusion, extrusion or both.
Orthodontic tooth movements and biomechanics.Sk Aziz Ikbal
The document discusses biomechanics principles related to orthodontic tooth movement. It covers topics such as:
- Forces applied to teeth can cause movement through bone remodeling.
- Biomechanics refers to mechanics applied to biological systems. Knowledge of forces is needed to control orthodontic treatment.
- Teeth can move through light forces during normal function but heavier sustained forces over 1 second are needed for orthodontic tooth movement.
- Forces have magnitude and direction, while scalars only have magnitude. Resultant forces and moments from multiple applied forces are calculated.
- Different force systems and moment-to-force ratios produce different types of tooth movement such as tipping, translation, rotation, and torque.
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 growth rotations of the maxilla and mandible. It defines various types of rotations that can occur, including forward and backward rotations. Forward rotation of the mandible is classified into three types (A, B, C) based on the center of rotation. Implant radiography techniques are used to measure and classify rotations by observing changes in implant positioning over time. Rotations influence tooth eruption and the ultimate positioning of teeth, which impacts orthodontic treatment planning.
The Steiner analysis was one of the first modern cephalometric analyses. It emphasized the interrelationships between measurements and offered guidelines for treatment planning based on predicted changes from growth and orthodontic therapy. The analysis includes skeletal, dental, and soft tissue measurements. Key skeletal measurements include SNA, SNB, and ANB angles. Key dental measurements include UI-NA and LI-NB angles and distances. The Holdaway ratio evaluates lower incisor prominence. The S-line assesses lower facial balance.
Dr. Viken Sassouni developed a cephalometric analysis method based on craniofacial x-rays of 100 children. He identified planes, arcs, and points to analyze facial proportions and classify facial patterns. A well-proportioned face has four planes intersecting at point O and equal upper/lower anterior and posterior facial heights. Sassouni found most faces were Type II patterns. His analysis considered vertical and horizontal relationships and classified occlusions, palates, profiles, and dental axes. He concluded that "normal" is relative and proportions are more important than absolute measurements.
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 document discusses the Wits appraisal method for assessing sagittal jaw disharmony. It describes how the Wits appraisal aims to eliminate variations caused by rotations and vertical dimensions seen in measurements like ANB. The Wits appraisal involves drawing perpendiculars from points A and B on the maxilla and mandible to the occlusal plane, and measuring the distance between where they intersect. Studies have found the average distance in males to be 1mm forward for B point, and in females the points generally coincide. The Wits appraisal is said to better reflect the severity of class II and III malocclusions compared to ANB alone. It is influenced less by variations in the cranial base and rotations.
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
Anchorage in beggs technique /certified fixed orthodontic courses by Indian d...Indian dental academy
Welcome to 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 has a unique training program & curriculum that provides students with exceptional clinical skills and enabling them to return to their office with high level confidence and start treating patients
State of the art comprehensive training-Faculty of world wide repute &Very affordable.
Anchorage /certified fixed orthodontic courses by Indian dental academy Indian dental academy
This document discusses anchorage and its management in stage 1 of Begg orthodontic treatment. It defines anchorage and its importance in orthodontics. It describes how anchorage is obtained through the anchorage bend technique in Begg appliances to facilitate retraction and intrusion of anterior teeth. It discusses factors like force levels and locations of anchorage bends that influence anchorage control. It also covers potential causes of anchorage loss and ways to prevent anchorage loss in stage 1 treatment.
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
Anchorage in orthodontics /certified fixed orthodontic courses by Indian dent...Indian dental academy
Welcome to 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 has a unique training program & curriculum that provides students with exceptional clinical skills and enabling them to return to their office with high level confidence and start treating patients
State of the art comprehensive training-Faculty of world wide repute &Very affordable.
Biomechanics in bagg /certified fixed orthodontic courses by Indian dental ac...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
Intrusion mechanics /certified fixed orthodontic courses by Indian dental aca...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
Intrusion mechanic and appliances /certified fixed orthodontic courses by Ind...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
Anchorage preparation in pae /certified fixed orthodontic courses by Indian d...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
Space closure by frictionless mechanics 2 /certified fixed orthodontic course...Indian dental academy
This document discusses various methods for space closure during orthodontic treatment. It begins by stating that space closure is dictated by treatment objectives and can be achieved through different mechanisms. The goals for any space closure method are then outlined, including differential tooth movement control and producing an optimal biological response. Key determinants of space closure like the amount of crowding, anchorage, and tooth inclinations are also discussed. The document then goes on to compare sliding/friction mechanics versus loop/frictionless mechanics. It provides details on considerations for various anchorage situations and techniques for individual canine retraction. In summary, the document provides an overview of factors to consider for space closure and compares different mechanical approaches.
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
This document discusses stress breakers in partial dentures. It defines a stress breaker as a device that allows movement between the denture base and direct retainers. Stress breakers aim to distribute stresses acting on abutment teeth between the teeth and soft tissue ridges. They are classified as either type 1 utilizing a hinge or type 2 utilizing a flexible connection. Examples of stress breakers described include torsion bars, divided connectors, and mesially placed rests. Both advantages like preserving abutment teeth and distributing stresses, and disadvantages like increased difficulty and ridge resorption are outlined.
Similar to Anchorage & Its Management In Stage I Of Beggs technique/ fixed orthodontics courses india (20)
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
3.with hundreds of pictures.
4.Demo on Models
5.Demo on Patients
6. subtitles in your own language
12 months unlimited access and support @350 USD only.
For Demo please visit :www.idalectures.com/preview/
For more details visit: www.idalectures.com
Please contact us for any clarifications:
idalectures@gmail.com
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
www.indiandentalacademy.com
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
www.indiandentalacademy.com
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
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
Temple of Asclepius in Thrace. Excavation resultsKrassimira Luka
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
Gender and Mental Health - Counselling and Family Therapy Applications and In...PsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxEduSkills OECD
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
Andreas Schleicher presents PISA 2022 Volume III - Creative Thinking - 18 Jun...EduSkills OECD
Andreas Schleicher, Director of Education and Skills at the OECD presents at the launch of PISA 2022 Volume III - Creative Minds, Creative Schools on 18 June 2024.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
2. Anchorage
Webster “a secure hold sufficient to
resist a heavy pull”
In orthodontics “nature and degree of
resistance to unwanted displacement
offered by an anatomic unit, when used
for purpose of effective tooth
movement”
www.indiandentalacademy.com
3. Anchorage management
Involves restricting movement of one
group of teeth while facilitating
movement of other teeth.
Successful anchorage management is
key to successful orthodontic
treatment.
www.indiandentalacademy.com
4. “Anchorage preparation is most
important step in clinical orthodontics”
(Tweed)
Begg light wire appliance develops its
total anchorage potential from with in
the mouth.
www.indiandentalacademy.com
5. Relationship of tooth movement to
force
Conc. the force needed to produce
tooth movement, where it is desired
Dissipate the reaction force over as
many other teeth as possible keeping
the pressure in PDL of anchor teeth
as low as possible
www.indiandentalacademy.com
6. A threshold, below which pressure
would produce no reaction perfect
anchorage control
since it would only be necessary to be
certain that the threshold for tooth
movement was not reached for teeth
in anchorage unit.
www.indiandentalacademy.com
7. Amount of tooth movement α mag. Of
pressure ,up to a point.
After this, AOTM is indep. Of
magnitude of pressure
www.indiandentalacademy.com
8. Optimum orthodontic force level for
movement is the lightest force &
resulting pressure that produces a
near maximum response
Force > that ,equally effective but
would be unness. traumatic &
stressful to anchorage
www.indiandentalacademy.com
9. Anchorage situations
Reciprocal anchorage force applied
to teeth & to arch segments are
equal ,so the force distribution in
PDL
www.indiandentalacademy.com
10. Anchorage value
Anchorage value of any tooth
roughly eq. to its root surface area
5 & 6 in each arch is appro. eq. in
surface area to 1,2 & 3
Freeman’s
anchorage value
diagram
www.indiandentalacademy.com
11. Reinforced anchorage
By adding more resistance units.
It is effective because with more
teeth (extraoral structures) in the
anchorage, reaction force distributed
over a larger PDL area.
www.indiandentalacademy.com
13. Anchorage bend
In begg’s technique anchorage is
used
For retraction and intrusion
Derived from single bend (anchorage
bend)
www.indiandentalacademy.com
14. Anchorage bend
Formerly called the tip-back bend.
Bend whose vertex faces occlusally
Placed in buccal segment at some point
mesial to the tube.
www.indiandentalacademy.com
15. The manner in which anchorage is
obtained for vertical movements-
When initial arch wire is inserted the
AB ant. Portion should rest in
mucobuccal fold
Engaged in brackets
wire will exert force on molar,
occlusal pressure on mesial end of tube and
gingival pressure on distal end
www.indiandentalacademy.com
16. This will tend to cause
Extrusion of mesial cusp & root
Intrusion of distal cusp & root
Distal tipping of crown
Mesial tipping of root
www.indiandentalacademy.com
17. These tendencies encounter certain
resistance
Ex. Of mesial cusp opp. Occl. Force
Int. of distal cusp bone
Distal tipping of crown 2nd
& 3rd
molars
Mesial tipping of root bone on mesial
surface
Resistance not equal magnitude prevent
effect of anchorage bendwww.indiandentalacademy.com
18. If arch wire viewed from side, mildly
gingival curve
reflect force for overbite correction
resistance to movement exhibited by molar
The amount of constant light force,
optimal for intruding the anterior
at a minimal level to produce movement
of molars. www.indiandentalacademy.com
19. The manner in which anchorage is
obtained for retraction
After arch wire attached
class II elastic between I.M.H of upper arch
wire & hook on mesial end of lower molar
tube.
Tend to pull molar forward & retract
anteriors
www.indiandentalacademy.com
20. AB counteract mesial pull
If appro. Ab and elastics are used
(proper m/f) tooth lean upright,& if
move, bodily
www.indiandentalacademy.com
21. At the same time e retract ant. Ling.
by tipping
The amount of force exerted by elastic
Optimal for tip the anterior backwards
At a minimal level to move of molars
forward bodily.
www.indiandentalacademy.com
22. Amount of force exerted by wire &
elastics is important if desired
movements are to be attained with
minimal anchorage loss, throughout
the Rx.
www.indiandentalacademy.com
23. Orthodontic Judo
Based on using the opponent’s greater
strength and weight to his disadvantage
Enable a weak & small man to overcome
a large & strong man, based on scientific
principles of leverage and balance
www.indiandentalacademy.com
24. The crown tipping tendency can be used to
advantage
↓
by simply eliminating the stabilizing
resistance supplied by wires and
elastics attached to other teeth
↓
crown takes the path of least resistance and
net result crown movement.
www.indiandentalacademy.com
25. Attainment of beneficial crown tipping
movement resulting from root tipping
force or prevention of detrimental
crown movements by these forces is
called orthodontic judo
www.indiandentalacademy.com
26. Three elements
Lever arm( arch wire)
Area of High resistance (bone around
roots)
Area of low resistance (area around
crown)
www.indiandentalacademy.com
28. Under certain conditions, and relatively
early in Rx
light forces can induce a backward
movement of anchor molar crown,
which in themselves are being used to
move ant. teeth backward
Contravention to Newton’s 3rd
law
Like lifting yourself off the floor with your
own bootstrap
Operation boot strap: net distal movement
of anchor molars with judo mechanics
www.indiandentalacademy.com
29. AB tends to tip the molar roots
forward and crown backward
Net effect of widespread difference
between the high resistance root
tipping and the low resistance crown
tipping
More crown movement
AB force in first stage & net distal
movement of upper molars
www.indiandentalacademy.com
30. If molar mesially inclined at comm. of
Rx , net distal movement of crown to
upright position can be sig. for
class II correction
incr. arch length in nonext. Cases.
www.indiandentalacademy.com
31. For net distal movement
molar crown should freely move back
No binding of arch wire in tube
Do not bend the end of arch wire
Do not use tie back ligature to molar
tube
www.indiandentalacademy.com
32. AB force in first stage with or without
net distal movement of lower molars
Lower molar crown also have tendency
to tip back
Controlled by varying the force of class
II elastics
11/2 – 21/2 ounce (nonext.) crown may
tip back more & root tip forward less
www.indiandentalacademy.com
33. 21/2 – 31/2 ounce (ext.)
both crown & root may tip, uprighting
the tooth but imparting little or no
distal tipping
Net distal movement is proportional
to amount of elastic force
www.indiandentalacademy.com
34. The location and degree of
angulations of A.B, depends upon
Types of arch wires
Location of extraction space, if any
Depth of overbite
Hazard of occlusal impingement and
distortion aids
Inclination of anchor molars
www.indiandentalacademy.com
35. Variations in the angulations of AB
Stage of treatment
In stage 1- usually greater than
stage 2 except for open bites
Little if required in stage 3.
www.indiandentalacademy.com
36. Depth of overbite
In avg. deep bite cases –
anterior segment of wire rest
passively at the depth of mucolabial fold
In open bite case-
to keep the anchor molar of both
jaws upright against the mesial pull of
elastic and wire. After OB correction
↓ to prevent dev. excessive OB or distal
tipping of molars.
www.indiandentalacademy.com
37. Rate of progress of case
If progress is unsatisfactory, bend or↑
relocate bend closer to molar tube.
Inclination of anchor molar at the
commencement of the treatment
If molars are inclined mesially ↓ AB, so
that wire rests passively in mucolabial
fold.
www.indiandentalacademy.com
38. On severe mesial inclination-
No AB initially
Later for uprighting molar
unilaterally mesial inclined molar
the increased intrusive force on that
side can be prevented by using vertical
elastics and arch wires.
www.indiandentalacademy.com
39. Variation in location of AB
Stage 1 of treatment
placed forward to the molar tooth to
permit it to slide back to tube during
space closer
but not to enter the tube
www.indiandentalacademy.com
40. At the commencement of treatment
distal to premolar or tip of buccal cusp
Mild overbite/open bite cases
formed as gentle curve located at the
head of bicuspid bracket
www.indiandentalacademy.com
41. Nearer to molar tube
Occlusal impingement
Difficulty and delay in overbite
correction
non extraction case
In first molar extraction cases
In second bicuspid extraction cases
www.indiandentalacademy.com
42. When progress rapid
placed farther forward
If little space remains
placed far enough forward to
assure that old teeth will come into
proximal contact before AB reach the
molar tube.
The rate of progress and amount of
space remaining
www.indiandentalacademy.com
43. Location of AB in loop arch
wires
used for 2-3 appointments
placed far enough forward to
assure that it will not slide back and
reach the molar tube.
www.indiandentalacademy.com
44. Causes of loss
of Anchorage in stage I
and
its preventionwww.indiandentalacademy.com
45. Vertical loop touching the labial
surface of the teeth
A loop resting but not touching labial
surface of ant. teeth
As the crown tip lingually loop is moved
towards the teeth inhibit further free
tipping of ant. Teeth in same arch, may
affect opp. Arch also.
www.indiandentalacademy.com
46. Prevention
Proper arch wire fabrication
Proper location of loops &
limitation of the number of loops
Slightly labial inclination of loops
in severe crowding cases
www.indiandentalacademy.com
47. Vertical loop impinging on the
gingival tissue
Prevent free tipping but less than if
touching the tooth
If impinge on gingiva become imbedded
by next visit
Prolong first stage I
www.indiandentalacademy.com
48. Prevention
Care modification of loops
Slightly labial inclination of loops when arch
first applied
Do not modify the loop without removing
from mouth
www.indiandentalacademy.com
49. Intermaxillary hooks not cranked
out
Vertical portion of I.M.H resting snugly
against the canine +ve braking
mechanism
Prevention
I.M.H should be cranked out before arch
wire is applied
Use horizontal circle
www.indiandentalacademy.com
50. Distal leg of I.M.H sliding against the
lock pin & becoming engaged in canine
bracket
Prevents free and simple tipping of canine
crown
Usually happen when loop arch wire are used
to unravel ant. Crowding
www.indiandentalacademy.com
51. Prevention
I.M.H should be cranked far enough
labillay, engage against the mesial
surface of bracket
Use horizontal circle
www.indiandentalacademy.com
52. Elastic over the I.M.H engaging the
labial surface of canine
Not major cause
Due to using thick elastics or two
elastics
Prevention
Modify I.M.H so that elastic not
produce undesirable pressure
Use horizontal circle
www.indiandentalacademy.com
53. Lock pin binding the arch wire
in the bracket
If one or more ant. teeth are bind
Prevention
Use special safety lock pins
If conv. Pins, tails should be bend
before head strike the arch wire
www.indiandentalacademy.com
54. Cuspid forced out into buccal plate
Improper arch wire form
Causes drag teeth can not tip freely
www.indiandentalacademy.com
55. Prevention
Place the distal ends of arch wire in
molar tubes, see if wire lies so far
labially in canine region
www.indiandentalacademy.com
56. Too strong elastic force
Use proper intermaxillary elastic
force
2-21/2 ounce
Molar will come forward
www.indiandentalacademy.com
57. Wearing more than one elastic
Pt. must be properly educated in
function of elastics
Danger of wearing more elastics
www.indiandentalacademy.com
58. Elastics not worn continuously
Intermittent wearing causes anchor tooth
to become loose
Ant. Teeth hardly move
Prolong Rx anchorage loss
Prevention
Proper patient education
www.indiandentalacademy.com
59. Arch wire accidentally engaged in
the slot of second premolar
Increases friction
In mes.ling molar rotation wire may
acci. engage
Prevention
Use of bypass clamp
Remove the premolar band for first 6
weeks
www.indiandentalacademy.com
60. Arch wire binding in buccal tube
If arch wire too short to protrude through the
distal end of molar tube
When cut to proper length, cause internal
burring (not removed by ordinary polishing)
Prevention
Make always slightly longer than necessary
Do not cut the end of wire until all
modifications and bends, 1/8”should
protrude
www.indiandentalacademy.com
61. End of arch wires striking the
second permanent molar
Retards and sometimes stops the
distal sliding of arch wire (usually in
upper molar)
www.indiandentalacademy.com
62. Prevention
Extend the arch wire farther distally
through the 1 molar tube not only to
prevent striking but also to move 2nd
molar lingually
If impossible, cut it short enough to
allow it to slide freely until next visit
www.indiandentalacademy.com
63. End of arch wire penetrating the
gingival tissue
Usually distal end of lower arch
Gingival tissue (bone) prevent free
sliding
Prevention
Patients should be instructed to visit
orthodontist if they feel discomfort or
Can not engage elastics
www.indiandentalacademy.com
64. Anchorage bends engaging buccal
tube
Once entered in molar tube free
sliding is prevented due to three point
contact
Prevention
Check the situation every visit
If necessary remove the
arch wire, st. it and, make
new anchor bend mesially
www.indiandentalacademy.com
65. Ligating premolar too tightly to
arch wire
Arch wire can not slide distally
Prevention
Ligate the arch wire lightly so that arch
is free to slide
www.indiandentalacademy.com
66. Insufficient anchorage bend in first
arch wire when first applied
Good rule to follow to incorporate
enough AB to cause the ant. section to
lie against the floor of mucobuccal fold
when distal ends of arch wire is
threaded into molar tubes.
www.indiandentalacademy.com
67. Prevention
Not to estimate the amount of bend in
number of degrees, because
Inclination of molar and buccal tube
Length of arch wire
must be taken into account
www.indiandentalacademy.com
68. Distorted anchorage bend
Seen in negligent pt. mesial to lower
molar tube, esp. when lower 2nd
premolars are not present
Prevention
Examine the arch wire closely
If distorted ,remove from mouth,
eliminate the distortion
www.indiandentalacademy.com
69. Too much anchorage bend
May cause distortion of arch wire
May cause arch wire to rotate in molar
tubes rotate the molars failing to
depress molars
www.indiandentalacademy.com
70. Improper toe in
Results in loss of control of anchor teeth &
failure to reduce ant. Deep bite.
Proper amount of toe in or toe out is
determined by placing the arch wire in molar
tubes & in anterior brackets
The wire should pass st. forward and occlusally
as it leaves the tube from the action of
anchorage bend.
www.indiandentalacademy.com
71. Arch wire too soft
Arch wire material must have higher
resiliency that is compatible with
freedom from likelihood of # of arch
wire while they are being worn
Other wise Rx time will increase
more anchorage loss
www.indiandentalacademy.com
72. Overactivated expansion loops or
improperly bent arch wires
Cause rapid initial labial tipping and
spacing of ant. Teeth
More force time spend to recover
original lab.ling.
inclination of ant. Teeth
Loss of anchorage
www.indiandentalacademy.com
73. Bend – over free end of lock pin
impinging on arch wire
A lock pin tail striking the wire distal to
caninedoes more harm than the same
in C.I
Prevention
Use short lock pin or cut the lock pin
tail off flush with the side of bracket
Bend all pins tail to mesial.
www.indiandentalacademy.com
74. Wrong type of bracket
Do not edge wise bracket
May allow ample tipping labiolingually
but it restricts mesiodistal tipping and
causes loss of anchorage
www.indiandentalacademy.com
75. Arch wire rolling in buccal tube
Avoid too much anchorage bend
and/or too much toe in bend
www.indiandentalacademy.com
76. Improper arch wire form
Arch wire should keep all teeth in the
cancellous through of alveolar bone
Arch wire must be bilaterally similar
in form or should be so shaped as to
eliminate any asymmetry of arch
www.indiandentalacademy.com
77. Upper and lower arch wire forms
not coordinated
Teeth will assume faulty relationship
Ant. or pos. cross bite cuspal
interference prolonged Rx time
www.indiandentalacademy.com
78. Internal diameter of buccal tube
too small or large
Best internal diameter 0.036” for 0.016”
wire
if less free sliding will reduced
if more molar control lessen,
depression force on ant. Lessen
www.indiandentalacademy.com
79. length
Length 0.20” – 0.25” ,
shorter tube lessens molar control &
force of anchor bend,
longer tube more control, reduces the
distance of arch wire between mesial
end of molar tube and premolar bracket
operational difficulties during stage 3.
www.indiandentalacademy.com
80. Retaining looped arch wire longer
than necessary
Danger of loops moving into such
positions that they press against
labial surface of ant. teeth
Not transmit tooth depressing force
as accurately as an arch wire without
loop
Cuspid will depress more than
incisors
www.indiandentalacademy.com
81. Binding of doubled-back arch wire
in flat oval tube
Binding will occur by having the legs too
far apart
May be due to too large a radius where
the arch wire returned on itself, or too
long a vertical section extending from the
hook that is wound around the arch.
Legs of double back are not ll.
www.indiandentalacademy.com
82. Curving arch wires between
expansion loops
Make the arch wire st. between the loops
If need to modify the form make bends in
the loops
When engaged, loops become distorted
rotations of the sections of archwire
If curved three point contact inhibit free
lab.ling. tipping
www.indiandentalacademy.com
83. Thumb or finger sucking, lip sucking,tongue
thrusting and abnormal sleeping habits
Retard or prevent treatment progress
Cause loss of anchorage
Prevention
Habit breaking measures
www.indiandentalacademy.com
84. Improper ligature tie at canine
do not pass ligature ties on canines
over the incisal of brackets
prevents free tipping
It should pass directly
distally across the labial
surface of canine
www.indiandentalacademy.com
85. Anchorage bend too far mesially
Ideal location at the mesial of anchor molar
It may become restricted by ligature tie on
bicuspid, preventing free distal sliding
Arch wire will be projected
towards the occlusal plane
and be deformed by occlusal
forces.
www.indiandentalacademy.com
86. prevention
Anchorage curves instead of bends
Gently curved anchor bend can be
initially placed so far mesially in the arch
wire that it is unnecessary to remove the
arch wire from mouth in order to make a
new bend farther.
www.indiandentalacademy.com
87. Using 0.014” instead of0.016” wire
0.014” exerts insufficient force from
its anchorage bend to prevent the
anchor molars from being tipped
mesially.
Ant. Deep bite will also not open
www.indiandentalacademy.com
88. Loosening of anchor molar bend
Pull the affected molar forward
Anterior teeth are not depressed
www.indiandentalacademy.com
89. Conclusion
Place adequate anchorage bends in
both arch mesial to molar tubes
Use of arch wires, rubber elastics
which exert tooth moving forces of
low value.
Not to move any teeth bodily other
than anchor molars in stage I
www.indiandentalacademy.com