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
Orthognathic surgery and minor procedures like extractions are used in orthodontics to correct dental abnormalities. Major orthognathic surgeries like LeFort I osteotomies and sagittal split osteotomies reposition the jaws to correct dental malocclusions. Minor procedures include extractions of teeth like premolars, as well as surgical exposures of impacted teeth. The decision to use orthodontic camouflage versus surgery must be made early. Adjunctive facial procedures like rhinoplasty and genioplasty are also used to improve aesthetics beyond dental repositioning.
This study evaluated the efficacy of using periotomes for single-rooted nonsurgical tooth extractions compared to traditional extraction techniques. 100 patients were randomly assigned to have a tooth extracted using either a periotome (test group) or traditional methods using forceps (control group). The results found that extractions using periotomes took less time, resulted in less post-extraction pain reported by patients on a visual analogue scale over 7 days, required less analgesic consumption, and caused fewer gingival lacerations compared to traditional methods. The study concluded that the use of periotomes can help reduce post-extraction discomfort compared to conventional extraction techniques.
Treatment planning for partially edentulous patients /fixed orthodontics coursesIndian 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.
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.
The document provides guidance on orthodontic diagnosis and treatment planning. It outlines the key steps in the diagnostic process, which include obtaining a patient history, performing a clinical examination, analyzing diagnostic records, classifying the malocclusion, developing a problem list, and formulating a treatment plan. The clinical examination involves assessing both extraoral and intraoral structures to identify abnormalities. The goals of orthodontic treatment are discussed as functional efficiency, structural balance, and esthetic harmony. An accurate diagnosis is emphasized as the foundation for providing appropriate orthodontic care.
The document discusses various techniques for fabricating a single complete denture opposing natural teeth. It defines a single complete denture and notes they are more common in the maxilla. Key challenges include withstanding high occlusal forces from natural teeth and achieving balanced occlusion. The document outlines methods for modifying the occlusion of natural teeth prior to denture construction and techniques like Stansbury and Vig's to establish harmonious occlusion through functional records.
This document discusses orthognathic surgery decision making, treatment planning, and timing of surgery. It covers collecting patient data, diagnosing issues, cephalometric analysis, developing a treatment plan, and predicting soft tissue changes. Treatment options include orthodontics, dentofacial orthopedics, and orthognathic surgery to correct jaw and facial skeletal issues.
Orthognathic surgery and minor procedures like extractions are used in orthodontics to correct dental abnormalities. Major orthognathic surgeries like LeFort I osteotomies and sagittal split osteotomies reposition the jaws to correct dental malocclusions. Minor procedures include extractions of teeth like premolars, as well as surgical exposures of impacted teeth. The decision to use orthodontic camouflage versus surgery must be made early. Adjunctive facial procedures like rhinoplasty and genioplasty are also used to improve aesthetics beyond dental repositioning.
This study evaluated the efficacy of using periotomes for single-rooted nonsurgical tooth extractions compared to traditional extraction techniques. 100 patients were randomly assigned to have a tooth extracted using either a periotome (test group) or traditional methods using forceps (control group). The results found that extractions using periotomes took less time, resulted in less post-extraction pain reported by patients on a visual analogue scale over 7 days, required less analgesic consumption, and caused fewer gingival lacerations compared to traditional methods. The study concluded that the use of periotomes can help reduce post-extraction discomfort compared to conventional extraction techniques.
Treatment planning for partially edentulous patients /fixed orthodontics coursesIndian 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.
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.
The document provides guidance on orthodontic diagnosis and treatment planning. It outlines the key steps in the diagnostic process, which include obtaining a patient history, performing a clinical examination, analyzing diagnostic records, classifying the malocclusion, developing a problem list, and formulating a treatment plan. The clinical examination involves assessing both extraoral and intraoral structures to identify abnormalities. The goals of orthodontic treatment are discussed as functional efficiency, structural balance, and esthetic harmony. An accurate diagnosis is emphasized as the foundation for providing appropriate orthodontic care.
The document discusses various techniques for fabricating a single complete denture opposing natural teeth. It defines a single complete denture and notes they are more common in the maxilla. Key challenges include withstanding high occlusal forces from natural teeth and achieving balanced occlusion. The document outlines methods for modifying the occlusion of natural teeth prior to denture construction and techniques like Stansbury and Vig's to establish harmonious occlusion through functional records.
This document discusses orthognathic surgery decision making, treatment planning, and timing of surgery. It covers collecting patient data, diagnosing issues, cephalometric analysis, developing a treatment plan, and predicting soft tissue changes. Treatment options include orthodontics, dentofacial orthopedics, and orthognathic surgery to correct jaw and facial skeletal issues.
The document describes the edgewise orthodontic technique, which was developed in 1925 by Dr. Edward Angle. It involves inserting a rectangular archwire into brackets placed on the front (buccal/labial) of the teeth. The wire fits into a bracket slot measuring 0.022” x 0.028” with tie wings. Bracket placement positions on the teeth are also specified. The technique uses archwires of varying sizes to move teeth in three planes and for other purposes like anchorage preparation. It allows for good control of tooth movement but can cause more discomfort and root resorption compared to other methods due to heavier forces.
1. Natural dentition occlusion is organic with features like bilateral posterior contact and anterior guidance, while complete denture occlusion aims for centralized forces and balance to minimize tipping.
2. The differences between natural and complete denture occlusion arise from differences in sensory feedback mechanisms, derivation of retention, stability and support, and how the supporting structures react to forces.
3. For natural teeth, retention, stability and support are derived through the periodontium, but for complete dentures they are derived through mucosal bearing surfaces, which can experience further resorption from non-physiologic forces and lack sensitivity.
1. The document describes the process of using a digital impression and preliminary jaw relation record to fabricate custom trays (CAD/CAM trays) for making definitive impressions.
2. A digital impression of the edentulous jaws is taken using an intraoral scanner, and a preliminary jaw relation record is made by scanning a jig made of polymerized silicone putty placed between the jaws.
3. CAD software is used to create images of custom trays based on the digital impression and jaw relation record. The custom trays can then be fabricated using 3D printing.
ORTHODONTIC CORRECTION OF OCCLUSAL PLANE CANTING MaherFouda1
This document summarizes the orthodontic treatment of a 22-year-old patient with a canted occlusal plane, facial asymmetry, and mandibular prognathism. Miniscrews were implanted to intrude extruded teeth and correct the cant. After decompensation with elastics, the patient underwent bilateral sagittal split ramus osteotomy and genioplasty. Post-treatment, the patient's occlusion, facial asymmetry, and cant were significantly improved, though a two-jaw approach may have achieved better results. Miniscrews were effective for intrusion but require careful placement between roots to avoid complications.
Orthodontic treatment of deep bite part 1Maher Fouda
The document discusses the classification and treatment of deep bite. It defines deep bite as overbite greater than 3mm and classifies it as true deep bite caused by infraposition of posterior teeth or pseudo deep bite caused by supraocclusion of anterior teeth. Treatment involves intrusion of maxillary incisors, extrusion of premolars or molars, or a combination, and may include removable appliances, fixed appliances, headgear, or orthognathic surgery depending on the severity and skeletal vs. dental factors. Functional analysis is important to determine the correct treatment approach.
Centric relation is a controversial concept in dentistry that refers to the maxillomandibular relationship where the condyles are in their most anterior and superior position against the articular eminences, allowing purely rotary movement of the mandible. There have been many changes to the definition of centric relation over time as understanding has evolved. It is important for proper functioning and to develop centric occlusion in artificial dentures. However, accurately recording centric relation can be difficult due to various biological, psychological and mechanical factors that must be addressed. Common methods include using interocclusal records with or without central bearing devices as well as functional recording techniques.
Evaluation.
H. TMJ evaluation.
I. Airway evaluation.
J. Photographic evaluation.
1.Front face
2.Profile
3.Intraoral
4.Extraoral
K. Model analysis.
L. Dental cast analysis.
M. Articulated cast analysis.
This document provides an overview of genioplasty procedures. It begins with an introduction to genioplasty and anatomy. It then discusses preoperative evaluation including facial analysis, cephalometric evaluation, and chin classifications. Next, it covers various techniques for correcting chin deformities including osseous genioplasty procedures like horizontal osteotomy with advancement or reduction, and alloplastic genioplasty. It concludes with a brief discussion of complications. The document provides detailed information on evaluating patients, planning procedures, and technical aspects of different genioplasty techniques.
Genioplasty is a surgical procedure to alter the shape and projection of the chin bone. It can be done to augment a recessed chin or reduce a prominent chin, improving facial aesthetics and proportions. The surgery involves making precise bone cuts below the mental nerves and sliding the bony segment to reposition the chin. Careful preoperative evaluation and planning is required to determine the optimal surgical approach and amount of correction needed. Potential risks include injury to the mental nerves or poor healing of the bone cuts.
CBCT has many uses in orthodontics including for impacted teeth, root resorption, and boundary conditions. It provides more accurate 3D information than 2D imaging. CBCT is particularly useful for impacted or transposed teeth to localize them, for root resorption diagnosis, and to understand boundary conditions that may impact treatment planning. CBCT also has applications for craniofacial anomalies, TMJ assessment, and orthognathic surgery planning by providing detailed 3D visualization of structures.
Orthognathic surgery new microsoft power point presentationmemoalawad
Orthognathic surgery involves correcting dentofacial deformities through surgical procedures on the jaws and chin. It requires a combined surgical and orthodontic approach to achieve optimal results. Surgery is indicated for severe malocclusions that cannot be treated through orthodontics or growth modification alone. The decision to pursue surgery or camouflage treatment must be made before starting treatment, as the orthodontics differ significantly between the two approaches. Computer simulation can help patients understand treatment options and decide between camouflage and surgery.
The document discusses monoplane occlusion with balancing ramps for dentures. It aims to minimize lateral tipping forces by reducing inclined plane contact between maxillary and mandibular teeth. This is achieved by positioning teeth on a flat occlusal plane and adding balancing ramps. The summary provides instructions for setting up anterior and posterior teeth to achieve this occlusion scheme.
This document contains 20 multiple choice questions about orthodontic concepts and treatment planning. The questions cover topics like ideal occlusion percentages, treatment for cleft lip and palate, characteristics of hypothyroidism, force levels during mastication, importance of space maintainers, uses of chin caps, normal thumb sucking duration, reciprocal anchorage, extraction considerations, causes of overjet and Class II malocclusions, extraction alternatives, and contraindications for serial extraction. The father of modern orthodontics is identified as Edward H Angle.
Progressive bone resorption after tooth loss can leave inadequate bone height for dental implants without risking nerve injury. This document describes a technique for repositioning the inferior alveolar nerve laterally to allow safe implant placement medial to the nerve. The procedure involves creating bone windows around the mental foramen and posteriorly, carefully retracting the nerve and placing implants. Bone graft and membranes are used to support the nerve in its new position and prevent direct contact with implants.
The document discusses the management of midline diastema. It begins by covering the main etiological factors, including transient malocclusion, tooth material-arch length discrepancies, abnormal frenal attachments, and pressure habits. It then discusses diagnosis and the three phases of management: removal of the cause, active treatment using removable or fixed appliances, and retention using retainers or permanent bonded retainers. The goal is to first address the underlying cause, use appliances to close the space, and retain the correction long-term to prevent relapse.
The document provides an overview of various mandibular osteotomy techniques used in orthognathic surgery. It discusses the history, indications, techniques, advantages, disadvantages, and complications of bilateral sagittal split osteotomy (BSSO), internal vertical ramus osteotomy, body osteotomies, subapical osteotomies, and genioplasty. BSSO is one of the most common techniques described, allowing advancement, setback, or rotation of the mandible with minimal soft tissue stripping, though it carries risks of nerve injury, malocclusion, and relapse. Alternative techniques such as internal vertical ramus osteotomy are discussed as being easier but providing less control over condylar positioning.
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
Cleft lip and palate is the most common developmental anomaly of the craniofacial region, and they have been depicted throughout in the past civilizations.
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 treatment of deep bite malocclusions. It defines deep bite and provides descriptions from Graber and Nanda. It then discusses the prevalence based on racial groups. Treatment involves intrusion of incisors, extrusion of molars, and proclination of incisors. Stability depends on factors like growth, muscle strength, and retention. Extraction of premolars is generally not recommended for deep bites. The conclusion emphasizes early treatment and long-term retention for stability.
This document discusses distraction osteogenesis, a technique used to regenerate bone by gradually separating bone segments. It was introduced in 1951 by Ilizarov who used external fixation devices. The key steps involve cutting and separating the bone followed by slow distraction of 1mm per day which stimulates new bone formation. Both extraoral and intraoral devices are described. Applications include lengthening of the mandible for conditions like micrognathia. The process relies on stability of fixation, controlled distraction rate, and preservation of soft tissues. It allows reconstruction of craniofacial bones without growth factors.
Distraction osteogenesis 1 /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
The document describes the edgewise orthodontic technique, which was developed in 1925 by Dr. Edward Angle. It involves inserting a rectangular archwire into brackets placed on the front (buccal/labial) of the teeth. The wire fits into a bracket slot measuring 0.022” x 0.028” with tie wings. Bracket placement positions on the teeth are also specified. The technique uses archwires of varying sizes to move teeth in three planes and for other purposes like anchorage preparation. It allows for good control of tooth movement but can cause more discomfort and root resorption compared to other methods due to heavier forces.
1. Natural dentition occlusion is organic with features like bilateral posterior contact and anterior guidance, while complete denture occlusion aims for centralized forces and balance to minimize tipping.
2. The differences between natural and complete denture occlusion arise from differences in sensory feedback mechanisms, derivation of retention, stability and support, and how the supporting structures react to forces.
3. For natural teeth, retention, stability and support are derived through the periodontium, but for complete dentures they are derived through mucosal bearing surfaces, which can experience further resorption from non-physiologic forces and lack sensitivity.
1. The document describes the process of using a digital impression and preliminary jaw relation record to fabricate custom trays (CAD/CAM trays) for making definitive impressions.
2. A digital impression of the edentulous jaws is taken using an intraoral scanner, and a preliminary jaw relation record is made by scanning a jig made of polymerized silicone putty placed between the jaws.
3. CAD software is used to create images of custom trays based on the digital impression and jaw relation record. The custom trays can then be fabricated using 3D printing.
ORTHODONTIC CORRECTION OF OCCLUSAL PLANE CANTING MaherFouda1
This document summarizes the orthodontic treatment of a 22-year-old patient with a canted occlusal plane, facial asymmetry, and mandibular prognathism. Miniscrews were implanted to intrude extruded teeth and correct the cant. After decompensation with elastics, the patient underwent bilateral sagittal split ramus osteotomy and genioplasty. Post-treatment, the patient's occlusion, facial asymmetry, and cant were significantly improved, though a two-jaw approach may have achieved better results. Miniscrews were effective for intrusion but require careful placement between roots to avoid complications.
Orthodontic treatment of deep bite part 1Maher Fouda
The document discusses the classification and treatment of deep bite. It defines deep bite as overbite greater than 3mm and classifies it as true deep bite caused by infraposition of posterior teeth or pseudo deep bite caused by supraocclusion of anterior teeth. Treatment involves intrusion of maxillary incisors, extrusion of premolars or molars, or a combination, and may include removable appliances, fixed appliances, headgear, or orthognathic surgery depending on the severity and skeletal vs. dental factors. Functional analysis is important to determine the correct treatment approach.
Centric relation is a controversial concept in dentistry that refers to the maxillomandibular relationship where the condyles are in their most anterior and superior position against the articular eminences, allowing purely rotary movement of the mandible. There have been many changes to the definition of centric relation over time as understanding has evolved. It is important for proper functioning and to develop centric occlusion in artificial dentures. However, accurately recording centric relation can be difficult due to various biological, psychological and mechanical factors that must be addressed. Common methods include using interocclusal records with or without central bearing devices as well as functional recording techniques.
Evaluation.
H. TMJ evaluation.
I. Airway evaluation.
J. Photographic evaluation.
1.Front face
2.Profile
3.Intraoral
4.Extraoral
K. Model analysis.
L. Dental cast analysis.
M. Articulated cast analysis.
This document provides an overview of genioplasty procedures. It begins with an introduction to genioplasty and anatomy. It then discusses preoperative evaluation including facial analysis, cephalometric evaluation, and chin classifications. Next, it covers various techniques for correcting chin deformities including osseous genioplasty procedures like horizontal osteotomy with advancement or reduction, and alloplastic genioplasty. It concludes with a brief discussion of complications. The document provides detailed information on evaluating patients, planning procedures, and technical aspects of different genioplasty techniques.
Genioplasty is a surgical procedure to alter the shape and projection of the chin bone. It can be done to augment a recessed chin or reduce a prominent chin, improving facial aesthetics and proportions. The surgery involves making precise bone cuts below the mental nerves and sliding the bony segment to reposition the chin. Careful preoperative evaluation and planning is required to determine the optimal surgical approach and amount of correction needed. Potential risks include injury to the mental nerves or poor healing of the bone cuts.
CBCT has many uses in orthodontics including for impacted teeth, root resorption, and boundary conditions. It provides more accurate 3D information than 2D imaging. CBCT is particularly useful for impacted or transposed teeth to localize them, for root resorption diagnosis, and to understand boundary conditions that may impact treatment planning. CBCT also has applications for craniofacial anomalies, TMJ assessment, and orthognathic surgery planning by providing detailed 3D visualization of structures.
Orthognathic surgery new microsoft power point presentationmemoalawad
Orthognathic surgery involves correcting dentofacial deformities through surgical procedures on the jaws and chin. It requires a combined surgical and orthodontic approach to achieve optimal results. Surgery is indicated for severe malocclusions that cannot be treated through orthodontics or growth modification alone. The decision to pursue surgery or camouflage treatment must be made before starting treatment, as the orthodontics differ significantly between the two approaches. Computer simulation can help patients understand treatment options and decide between camouflage and surgery.
The document discusses monoplane occlusion with balancing ramps for dentures. It aims to minimize lateral tipping forces by reducing inclined plane contact between maxillary and mandibular teeth. This is achieved by positioning teeth on a flat occlusal plane and adding balancing ramps. The summary provides instructions for setting up anterior and posterior teeth to achieve this occlusion scheme.
This document contains 20 multiple choice questions about orthodontic concepts and treatment planning. The questions cover topics like ideal occlusion percentages, treatment for cleft lip and palate, characteristics of hypothyroidism, force levels during mastication, importance of space maintainers, uses of chin caps, normal thumb sucking duration, reciprocal anchorage, extraction considerations, causes of overjet and Class II malocclusions, extraction alternatives, and contraindications for serial extraction. The father of modern orthodontics is identified as Edward H Angle.
Progressive bone resorption after tooth loss can leave inadequate bone height for dental implants without risking nerve injury. This document describes a technique for repositioning the inferior alveolar nerve laterally to allow safe implant placement medial to the nerve. The procedure involves creating bone windows around the mental foramen and posteriorly, carefully retracting the nerve and placing implants. Bone graft and membranes are used to support the nerve in its new position and prevent direct contact with implants.
The document discusses the management of midline diastema. It begins by covering the main etiological factors, including transient malocclusion, tooth material-arch length discrepancies, abnormal frenal attachments, and pressure habits. It then discusses diagnosis and the three phases of management: removal of the cause, active treatment using removable or fixed appliances, and retention using retainers or permanent bonded retainers. The goal is to first address the underlying cause, use appliances to close the space, and retain the correction long-term to prevent relapse.
The document provides an overview of various mandibular osteotomy techniques used in orthognathic surgery. It discusses the history, indications, techniques, advantages, disadvantages, and complications of bilateral sagittal split osteotomy (BSSO), internal vertical ramus osteotomy, body osteotomies, subapical osteotomies, and genioplasty. BSSO is one of the most common techniques described, allowing advancement, setback, or rotation of the mandible with minimal soft tissue stripping, though it carries risks of nerve injury, malocclusion, and relapse. Alternative techniques such as internal vertical ramus osteotomy are discussed as being easier but providing less control over condylar positioning.
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
Cleft lip and palate is the most common developmental anomaly of the craniofacial region, and they have been depicted throughout in the past civilizations.
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 treatment of deep bite malocclusions. It defines deep bite and provides descriptions from Graber and Nanda. It then discusses the prevalence based on racial groups. Treatment involves intrusion of incisors, extrusion of molars, and proclination of incisors. Stability depends on factors like growth, muscle strength, and retention. Extraction of premolars is generally not recommended for deep bites. The conclusion emphasizes early treatment and long-term retention for stability.
This document discusses distraction osteogenesis, a technique used to regenerate bone by gradually separating bone segments. It was introduced in 1951 by Ilizarov who used external fixation devices. The key steps involve cutting and separating the bone followed by slow distraction of 1mm per day which stimulates new bone formation. Both extraoral and intraoral devices are described. Applications include lengthening of the mandible for conditions like micrognathia. The process relies on stability of fixation, controlled distraction rate, and preservation of soft tissues. It allows reconstruction of craniofacial bones without growth factors.
Distraction osteogenesis 1 /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
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
Distraction osteogenesis is a technique used to regenerate bone by gradually separating a bone in two pieces. It works by placing tension stresses across the bone gap which stimulates new bone growth. It has been used to treat various craniofacial abnormalities and avoid problems with conventional surgery. The history of distraction osteogenesis dates back to 1905 but it was pioneered and expanded upon by Ilizarov in the 1950s for limb lengthening. It has since been adapted for use in the craniofacial region including the mandible, maxilla and midface.
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
Distraction osteogenesis /certified fixed orthodontic courses by Indian denta...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Distraction osteogenesis 1 /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The document discusses the history and development of distraction osteogenesis for correcting skeletal dysplasias. It describes how distraction osteogenesis involves mechanically separating bone segments at a constant rate to generate new bone in the gap. Early experiments in the 1970s-1980s established the technique for limb lengthening and mandibular lengthening in animals. This led to the first clinical use of distraction osteogenesis on the craniofacial skeleton in 1989. The document outlines the various devices used, including both intraoral and extraoral unidirectional and bidirectional devices.
Distraction osteogenesis /certified fixed orthodontic courses by Indian denta...Indian dental academy
Distraction osteogenesis is a surgical technique that involves gradually stretching bone and soft tissue by applying tension over time in order to reconstruct skeletal defects. It utilizes the body's natural healing process to generate new bone where it is needed. Some key advantages are that it causes little relapse, allows for larger movements than traditional bone grafts, can mold the new bone shape, and has lower morbidity. The technique was first developed in the early 1900s but was refined by Russian orthopedic surgeon Gavriel Ilizarov in the 1950s. It was later adapted for use in dental applications involving the mandible and maxilla.
Implant surgeries to overcome anatomic difficulties ii / dental implant cour...Indian dental academy
This document discusses various surgical techniques used to overcome anatomical difficulties for dental implants. It covers guided tissue regeneration, ridge augmentation, maxillary sinus lift, inferior alveolar canal lateralization, and mental nerve distalization. The maxillary sinus lift technique is described in detail, including indications, contraindications, the original method, benefits and potential complications like membrane perforation. Lateralization of the inferior alveolar nerve and distalization of the mental nerve are also summarized. The document provides an overview of these procedures to help restore function and aesthetics for patients with atrophy or injury.
Implant surgeries to overcome anatomic difficulties / implant dentistry cour...Indian dental academy
The document discusses various implant surgery techniques to overcome anatomical difficulties, including guided tissue regeneration, ridge augmentation, maxillary sinus lift, inferior alveolar canal lateralization, and mental nerve distalization. It provides details on the procedures, including indications, techniques, materials used, advantages, limitations, and complications. The goal is to restore normal function, comfort, and aesthetics for rehabilitating challenging clinical situations, such as atrophy or injury, using these techniques to place dental implants predictably.
Distraction osteogenesis 2 /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
This document discusses distraction osteogenesis, a technique used to lengthen bones by gradual separation of surgically cut bone segments. It originated for treating leg length discrepancies and was later used for craniofacial bones. The key steps are cutting the bone, applying distraction forces slowly over 1-2mm per day in two sessions, allowing new bone formation in the gap. This immature bone then remodels into mature bone over 4-6 weeks of consolidation. Distraction osteogenesis is now commonly used as an alternative to orthognathic surgery for treating craniofacial abnormalities.
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
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPRAHUL
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
3. Events in Distraction
Osteogenesis
-Initiation with incremental traction to
the reparative callus
-Tension within the callus stimulates
new bone formation parallel to the
vector of distraction.
www.indiandentalacademy.com
4. •Tension is created in the surrounding
soft tissues leading to Distraction
Histogenesis(active histogenesis in
skin, fascia,blood vessels , nerves ,
muscle , ligament,cartilage &
periosteum.)
www.indiandentalacademy.com
5. It was introduced by Ilizarov
in 1951.
It is a unique form of tissue
engineering
Using easily controlled
mechanical
condition that is slow gradual
distraction of the corticotomizedwww.indiandentalacademy.com
6. Or osteotomized bone fragment
A clinician is able to guide the
formation of new bone and its
spatial orientation to form a
structural part of distracted
bone.
www.indiandentalacademy.com
7. This happens without application
of any growth factor or other
controlling agent.
Distraction can be done of various
cranio-facial structures like
Mandible,mid-facial ,zygomas ,
cranium related to dental fieldwww.indiandentalacademy.com
8. DEFINITION
“It is the regeneration of bone
between vascularized bone
surface that are separated by
gradual distraction”
www.indiandentalacademy.com
10. DENTOFACIAL TRACTIONDENTOFACIAL TRACTION
- As early as 1728, fauchard used
expansion arches
- Ideally shaped metal plates ligated
to the crowded dentition
- Wescott in 1859 reported
- mechanical force on maxilla
www.indiandentalacademy.com
11. - He used double clasp seperated
By a telescopic bar to correct a
Cross-bite
- Angel in 1859 first achieved rapid
palatal expansion
- Goddard in 1893,further
standardized the palatal expansion
www.indiandentalacademy.com
12. INITIAL PHASE OFINITIAL PHASE OF
DISTRACTIONDISTRACTION
-In 1905 Codvilla performed first
bone distraction-femur
-In 1927,Abbott applied same
concept for tibia
www.indiandentalacademy.com
14. In 1937, Kazanjian also
performed mandibular
osteodistraction by using
gradual incremental traction
instead of acute
advancement .After
performing modified L-
shaped osteotomies in the
corpus, he attached a wire
hook to the symphysis,
thereby providing direct
skeletal fixation to the bone
segment to be distracted.
www.indiandentalacademy.com
15. With the introduction of D.O.G
craniofacial surgery entered the
latest phase
It is ironical that Ilizarov spend
his professional carrier in
developing the technique on the
long bones
www.indiandentalacademy.com
16. The craniofacial skeleton are much
more suited for distraction
- membranous in embryological
origin
- smaller in dimension
- richer blood supply
He utilized a primitive external ring
fixator to compress the injured
bone ends
www.indiandentalacademy.com
17. By chance ,a patient reversed
the compression rod, thereby
distracting the bone fragment
Ilizarov observed new bone
formation radiologically and
pursued this new method
experimentally and clinically
www.indiandentalacademy.com
18. All early studies were done in
long bones like Tibia,femoral,
ulnar,radius e.t.c
Distraction of craniofacial
skeletal by synder et al in 1973
at 1mm/day for 14 days
www.indiandentalacademy.com
19. Next applied by michieli and miotti
in italy to increase mandibular
length by 15mm at the rate of
0.5mm/day followed by 40 days of
fixation
In 1990 Karp et al at new york
performed a unilateral angular
osteotomy in the canine mandible.
www.indiandentalacademy.com
21. Bone is a dynamic organ that can
regenerate.
Regeneration may be defined “as
restoration of form and function
indistinguishable from that derived
embryological ”.
Developmental insufficiency ,
pathology ,surgical resection and
avulsion can lead to osseous defects.www.indiandentalacademy.com
22. Regenerative capacity of bone
help in correcting these deficits.
Various biological factors as
hormones,prostaglandin,
cytokines and growth factor
www.indiandentalacademy.com
25. Bone fracture repair requires
remodeling of cortical and cancellous
components
Cortical bone remodeling includes
(B.M.U) synchronized team of
osteoblast and osteoclast
www.indiandentalacademy.com
26. Osteoclast-cutting cone of
BMU burrow through cortical
plate. Originates from
circulating mononuclear
precursor.
Osteoblast-produces over
abundance bone the callus.And
there,after excess callus is
again removed by osteoclastwww.indiandentalacademy.com
28. Critical factors of the process appears to
be
1. Stability of fixation
2. Rate of daily distraction
3. Preservation of local soft tissue envelope
4. Vascular supply
www.indiandentalacademy.com
29. Pure lengthening procedure
Corrective distraction
osteotomies
Transportation distraction
Stimulation of growth within
growth plate in growing children
www.indiandentalacademy.com
33. -Vector depends on orientation of
distraction device to skeletal
anatomy
-Devices are oriented to occlusal
plane
-In case of significant irregularity
occlusal plane long axis of body
of mandible is used
www.indiandentalacademy.com
36. The pin-bone interface is most
critical factor for the performance
of external fixation
Loosening of external fixation
pins
www.indiandentalacademy.com
37. Pin tract problem can be
controlled, but established
regimens must be followed during
insertion and post operative care
Most important factor single
factor causing pin loosening is
unstable fixation
www.indiandentalacademy.com
42. - Initially all experimental works in
membranous bone lengthening
was performed on mandible
- The protocol for correction
depends on degree and type of
deformity
www.indiandentalacademy.com
43. -Treatment choice depends purely
on individual patient need
-In 1990 Karp et al performed a
unilateral angular osteotomy in
canine mandible
-After 10 days of external fixation
mandible was distracted at
1mm/day for 20 days and held in
fixation for 56 dayswww.indiandentalacademy.com
46. PRE OPERATIVE CLINICAL
EXAMINATION
• Extra oral and intra oral
examination should be done with
extra care
• Check for asymmetries and
deformities in detail
• Function of TMJ before distraction
• Mouth opening.www.indiandentalacademy.com
49. •Placement of head in cephalostat is altered
in unilateral craniofacial microsomia.
•The ear is placed down and forward in
affected side.
•The technician
should make clinical
evaluation of a line
perpendicular to the
Mid sagittal plane
www.indiandentalacademy.com
55. A. External uni planar distraction
appliance
In 1992,mcCarthy et al introduced this
appliance to successfully lengthen
the mandible unilaterally in 3 children
and bilaterally in 1 child
Approx. 20-24mm of bone stock
posterior to last tooth bud is necessary
to place this device.
www.indiandentalacademy.com
56. Ortiz-monasterio and molina
modified illizarov technique by
performing incomplete
corticotomy.
They left internal cortical plate
and cancellus layer intact and
used semi rigid distractor.
www.indiandentalacademy.com
58. Bi planar distractor provides an additional
plane of correction
More severe mandibular hypoplasia, such
as Nager’s syndrome involves deficiency
in more than one plane
Following a single or double osteotomy,
one can distract both vertically and
horizontally
www.indiandentalacademy.com
59. In very difficult cases of mandibular
hypoplasia, a double osteotomy may be
undertaken in order to obtain two callus
sites. This allows a more rapid distraction
as well as the development of a
mandibular angle.
Klein and Howaldt introduced a device
capable of achieving controlled changes
in angulation.
www.indiandentalacademy.com
61. Multi planar devices has capability to
do correction in all three planes.
The hypo plastic mandible not only
deficient in ramus height and body but
effected ramus may lie in more medial
position, resulting in decreased bigonial
distance.
www.indiandentalacademy.com
62. Buccal surface of hypoplastic
ramus is approached via either an
intra-oral or extra-oral
Initial cases were done through an
extra-oral incision but as clinical
experience increased intra-oral
approach was used
SURGICAL PROCEDURE
www.indiandentalacademy.com
63. In either incision area
is anesthetized
In intraoral approach
incision is made over the
external oblique line and
buccal surface is exposed
in sub periosteal plane.
Raise a full-thickness flap, separating the
muscle from the overlying periosteum.
Identify the area of bone deficiency. Identify
and mark the area of preplanned mandibular
osteotomy.
www.indiandentalacademy.com
64. In transcutaneous approach, a 3-cm
incision is made in the skin lines of the
submandibular fold at a position along the
angle and inferior border of mandible
www.indiandentalacademy.com
65. - Selection of pin-hole site requires careful
attention
- As drill hole determines position of device
and vector of distraction.
- One must be sure that pin projects
sufficiently above the skin
- After the pin holes
are drilled saline
irregation should be
done to prevent bone
necrosis www.indiandentalacademy.com
66. Then 50mm half pins are inserted
In intra oral approach a trocar is used
to permit percutaneous drilling of holes
as well as insertion of half pins.
www.indiandentalacademy.com
67. It is technically best to perform or
complete osteotomy after distraction
appliance is tightened.
A mechanical saw supplemented by
saline irrigation can be used
The osteotomy is
is completed by
inserting and rotating
An osteotome by
Separating bone
Segment. www.indiandentalacademy.com
68. Irrigate the wound and close it with 4-0
cat gut suture.
www.indiandentalacademy.com
69. Loosen the fixation screw
("F") by turning the screw
turn counter-clockwise using
the provided screwdriver.
Using the screwdriver, turn
the advancement screw
("M") to move the rider in the
desired direction.
TO MOVE A RAIDER
The distance the rider is
moved is indicated by the scale
(marked in 1mm increments)
etched on the geared rod.
www.indiandentalacademy.com
70. Once the desired position of the rider is reached,
the rider must be stabilized by tightening the
fixation screw ("F"). This is done by turning the
screw clockwise.
Because the distraction process will be carried
out primarily by home-caregivers (relatives or
friends of the patient), the fixation and
advancement screws are clearly marked with the
letters "F" and "M", respectively.
www.indiandentalacademy.com
72. • In 1987, Guerrero applied the first
intraoral tooth-borne appliance for
osteodistraction of the mandibular
symphysis.
• In 1990, he reported the results of intraoral
mandibular widening on eleven patients
with transverse deficiencies ranging from 4
to 7 mm.He used the same principles that
Bell and Epker described for palatal
expansion of the maxilla .
www.indiandentalacademy.com
73. • After a vertical
symphyseal osteotomy, a
custom made Hyrax
appliance was placed
and initially activated 48
hours after surgery.
Depending upon the
resistance of the soft
tissues, 2 to 4 activations
were applied per day to
achieve the desired
expansion
www.indiandentalacademy.com
74. • In 1994, McCarthy and co-workers
developed a miniaturized bone-borne
Uniguide™ Mandibular Distraction
Device suitable for intraoral placement .Similar
to his extraoral appliance, the device consisted
of two clamps that were attached to the bone
via pairs of pins connected by a telescopic
distraction rod.
www.indiandentalacademy.com
75. • At the same time, Wangerin in
Germany designed a similar appliance
– the Intraoral Titanium
Mandibular Distraction Device.
The device consists of two mini plates
for bone fixation connected by a
square-shaped distraction cylinder.
www.indiandentalacademy.com
83. INTRAORAL MAXILLO-MALAR
DISTRACTION TECHNIQUES
•Maxillary malar
deficiency is a common
deformity.
•U shaped palatal
osteotomy performed
•A-P distractor placed
after completion of malar
maxillary osteotomywww.indiandentalacademy.com
84. -Osteotomy includes malar bone.
-Extends posteriorly
pterygomaxillary suture ,
posterior aspect of
zygoma.Same cuts are made on
opposite side.
www.indiandentalacademy.com
87. Maxillary Distraction procedures
deliver traction forces through the
dentition to the maxillary bone. To
apply traction through the dentition
a rigid intraoral splint is required.
Maxillary Distraction Procedure
www.indiandentalacademy.com
88. The Intraoral Splint:
• Orthodontic bands with 0.050inch
headgear tubes are fitted either on first
permanent molars or second primary
molars(below 6yrs). The splint is made
with 0.045/0.050 SS rigid wire.
•Two straight pieces of
0.050 SS wire are
soldered perpendicular
to the labial wire.
www.indiandentalacademy.com
89. • The long ends of these
wires are bent anterior
to the lips in a circle to
have a rigid eyelet to
apply traction.
• To control the direction
of traction forces relative
to the approximate
center of resistance of
the maxilla and also to
avoid irritation to the lip.
www.indiandentalacademy.com
90. The RED Device :
After completion of the osteotomy, the halo
portion of the RED device is adjusted and
rigidly fixed around the head with scalp
screws. A vertical bar was connected to the
halo and a horizontal bar with the distraction
screws.
www.indiandentalacademy.com
91. -The traction hook and traction screws were
connected with a 25guage surgical wire.
-Latency period :4 to 6 days after osteotomy.
-Active distraction :1 to 1.5mm per day
-Rigid retention :without active distraction for
2 to 3 weeks
-final retention : elastic retention with face
mask for
4 to 6 weeks
two 6-oz elastics
www.indiandentalacademy.com
93. The orthodontist has an extremely
important role to play right from
diagnosis and treatment planning
till the end of the treatment
It is divided into 3 stages
1. Pre distraction orthodontics
2. During distraction orthodontics
3. Post distraction orthodontics.
www.indiandentalacademy.com
94. Pre distraction orthodontics
A. Removal of dental compensation- teeth
should be moved to ideal position relative
to the basal bone so that ideal maxilo-
mandibular relationship is not
compromised.
B. Preliminary alignment- crowding,rotation,
extruded and intruded teeth should be
corrected before distraction procedure is
initiated
www.indiandentalacademy.com
95. C. Coordination of archwidth-patients with
severe mandibular retrognathism will have
transverse maxillary deficiency also. It is
appropriate to expand maxilla before
distraction.
D.Surgical hooks-passive rigid rectangular
full size wires are placed with surgical
hooks for use of intermaxillary guiding
elastics during active stage of
distraction
www.indiandentalacademy.com
96. A. Orientation of device-depending upon
type of deficiency, orientation should be
done based on occlusal plane to obtain
predictable changes (bilateral or
unilateral)
B. Distraction device can be uni-directional,
bi-directional, multi-directional
C. Application of external influence-this is
applied by clinician by activating the
device to achieve desired results
During distraction orthodontics
www.indiandentalacademy.com
97. Post distraction orthodontics
-After consolidation and removal of
appliance orthodontist has to give final
finishing of occlusion
-In cases of unilateral distraction patient
has canted occlusal plane which can be
corrected by selective tooth eruption
www.indiandentalacademy.com
98. - Unilateral distraction patients have
tendency of laterognathism causing
posterior cross-bite which can be
corrected by combination of TPA,
lingual arch, cross elastics,palatal
expansion appliance
www.indiandentalacademy.com
99. • Alveolar deformities and defects
may result from a variety of pathological
processes including 1) developmental
anomalies, such as cleft palate and
congenital tooth absence, 2)
maxillofacial trauma, which often
involves damage to the teeth and
associated jaw structures, and 3)
periodontal disease leading to bone and
tooth loss from the alveolar process.
Alveolar Distraction
www.indiandentalacademy.com
100. These deformities may be
managed by a variety of
surgical techniques,
such as autogenous onlay
bone grafting, alloplastic
augmentation, connective
tissue grafting, guided
tissue regeneration or
non-surgical techniques
such as facilitation of
supraeruption in
periodontally compromised
alveolar ridges.
www.indiandentalacademy.com
101. Distraction Of The Periodontal
Ligament(Dental Distraction)
• To achieve rapid canine retraction in 3 weeks,
the first premolar was extracted and the
interseptal bone distal to the canine was
undermined, grooving vertically inside the
socket with a bone bur
AJO/1998/ERIC LIOU
AND C.SHINGwww.indiandentalacademy.com
102. Then, an intraoral distraction device was placed
to distract the canine distally, with an activation of
0.5 to 1.0 mm/day. The anchor units were,
second premolar and first molar. The canines
were bodily distracted 6.5 mm into the extraction
space in 3 weeks . Anchor loss was nil in 73%
and 0.5 mm in 27% of the cases.
www.indiandentalacademy.com
103. • Development of osteotomy techniques that
allow division of bone without disruption of
periosteum, endosteum,neurovascular bundle
& blood supply.
Future Of Distraction
Osteogenesis
• Motorized distraction units with remote
activation & monitoring for precise dimensional
control and calibration of distraction forces.
www.indiandentalacademy.com
104. • Use of bioresorbable materials such as
Lactosorb(a copolymer of poly-l-lactic acid-82%
& poly glycolic acid-18% ).
IMPLANT PLATES SCREWSwww.indiandentalacademy.com
105. Distraction Osteogenesis has taken
many different forms and has evolved
into its own super-speciality of
orthognathic treatment for various
congenital and post-traumatic incidences
of mandibular and maxillary fracture and
deformity.
As an Orthodontist we should know
that how to proceed in various stages of
distraction to achieve the best results.
www.indiandentalacademy.com