This document reviews miniscrews used for orthodontic anchorage. It discusses the history of temporary anchorage devices from their suggestion in 1945 to current widespread use. It describes different classification systems for miniscrews and reviews key design features like material, length, diameter, head, and neck. The document discusses considerations for miniscrew selection like safe zones for placement, insertion technique, loading forces, and potential complications. In conclusion, miniscrews have significantly improved orthodontic treatment by providing improved anchorage compared to conventional methods.
The document discusses temporary anchorage devices (TADs) used in orthodontic treatment. It defines TADs as devices that are temporarily fixed to bone to enhance orthodontic anchorage and are later removed. The document covers the history of TADs, classifications based on materials and design, indications for use, surgical procedures for placement, and factors involved in success and failure. It provides examples of different TAD systems and discusses considerations for biomechanics, long-term stability and failure of implants.
Temporary anchorage devices (ta ds) in orthodontics 4 presentIshfaq Ahmad
Temporary anchorage devices (TADs) such as miniscrews provide orthodontists improved anchorage control. Miniscrews first emerged in the late 20th century and are now commonly used. They are made of biocompatible materials like titanium and are designed to be mechanically retained rather than osseointegrated for easy removal. Miniscrews come in various shapes, sizes, and designs depending on the site of placement and intended force application. They can be placed interradicularly or in other bones like the palate, mandible, or zygoma. When placed carefully within safe zones and loaded properly, miniscrews provide effective temporary orthodontic anchorage with minimal risk
Temporary Anchorage Device (TAD) or Mini (screw ,implant)Khaled Wafaie
Orthodontic Temporary Anchorage Device (TAD) or Mini (screw ,implant).
I am hoping that this presentation is beneficial for everyone
For more information and for further contact join us on ( Orthodontic Institution) Group on Facebook.
The document discusses orthodontic implants used for anchorage during treatment. It defines implants as temporary devices fixed to bone to control tooth movement. Implants are usually mini-screws made of titanium alloy. They provide stable anchorage as force is transmitted directly to the implant, making treatment more efficient compared to conventional anchorage. The document outlines the various uses of implants including retraction, intrusion, distalization, and asymmetrical tooth movement. It concludes that implants have revolutionized orthodontic anchorage by allowing for difficult tooth movements with minimal patient cooperation.
The document outlines the 18 step surgical protocol for inserting orthodontic miniscrews. Key steps include:
1) Taking a radiograph to check root positioning and space for insertion.
2) Administering anesthetic and cleaning the insertion site.
3) Inserting the miniscrew perpendicular to the bone or at an 80-90 degree angle using pliers or a driver.
4) Checking stability and taking a radiograph to confirm proper positioning.
5) Applying immediate loading not exceeding 150g of force and instructing post-operative hygiene.
The document discusses mini implants used in orthodontics. It covers the definition and history of implants, parts and types of implants, bone physiology related to implants, indications and contraindications for implants, and treatment planning considerations for implants. The types of implants discussed include root form, blade form, mini-screws, and plates based on their shape, material, and area of implantation. Bone healing after implantation and osseointegration are also summarized.
The document discusses temporary anchorage devices (TADs) used in orthodontic treatment. It defines TADs as devices that are temporarily fixed to bone to enhance orthodontic anchorage and are later removed. The document covers the history of TADs, classifications based on materials and design, indications for use, surgical procedures for placement, and factors involved in success and failure. It provides examples of different TAD systems and discusses considerations for biomechanics, long-term stability and failure of implants.
Temporary anchorage devices (ta ds) in orthodontics 4 presentIshfaq Ahmad
Temporary anchorage devices (TADs) such as miniscrews provide orthodontists improved anchorage control. Miniscrews first emerged in the late 20th century and are now commonly used. They are made of biocompatible materials like titanium and are designed to be mechanically retained rather than osseointegrated for easy removal. Miniscrews come in various shapes, sizes, and designs depending on the site of placement and intended force application. They can be placed interradicularly or in other bones like the palate, mandible, or zygoma. When placed carefully within safe zones and loaded properly, miniscrews provide effective temporary orthodontic anchorage with minimal risk
Temporary Anchorage Device (TAD) or Mini (screw ,implant)Khaled Wafaie
Orthodontic Temporary Anchorage Device (TAD) or Mini (screw ,implant).
I am hoping that this presentation is beneficial for everyone
For more information and for further contact join us on ( Orthodontic Institution) Group on Facebook.
The document discusses orthodontic implants used for anchorage during treatment. It defines implants as temporary devices fixed to bone to control tooth movement. Implants are usually mini-screws made of titanium alloy. They provide stable anchorage as force is transmitted directly to the implant, making treatment more efficient compared to conventional anchorage. The document outlines the various uses of implants including retraction, intrusion, distalization, and asymmetrical tooth movement. It concludes that implants have revolutionized orthodontic anchorage by allowing for difficult tooth movements with minimal patient cooperation.
The document outlines the 18 step surgical protocol for inserting orthodontic miniscrews. Key steps include:
1) Taking a radiograph to check root positioning and space for insertion.
2) Administering anesthetic and cleaning the insertion site.
3) Inserting the miniscrew perpendicular to the bone or at an 80-90 degree angle using pliers or a driver.
4) Checking stability and taking a radiograph to confirm proper positioning.
5) Applying immediate loading not exceeding 150g of force and instructing post-operative hygiene.
The document discusses mini implants used in orthodontics. It covers the definition and history of implants, parts and types of implants, bone physiology related to implants, indications and contraindications for implants, and treatment planning considerations for implants. The types of implants discussed include root form, blade form, mini-screws, and plates based on their shape, material, and area of implantation. Bone healing after implantation and osseointegration are also summarized.
Extrusion by reverse curves archwires by Dr Maher FoudaMaher Fouda
The document discusses the use of accentuated curve Niti wires and anterior box elastics to correct anterior open bites. It describes how the curved wires provide intrusive forces on the anterior and posterior teeth while the elastics balance out the force anteriorly, allowing intrusion of the posterior segments. This results in closure of the open bite as the mandible rotates anteriorly. The treatment is effective but requires strict patient compliance with elastic wear. Potential risks include gummy smiles and gingival recession if elastics are worn too long.
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.
This document provides an overview of anchorage in orthodontics. It defines anchorage and discusses various classifications of anchorage including based on the manner of force application, jaws involved, number of anchor units, and site of anchorage. It also covers anchorage loss, sources of anchorage for removable and fixed appliances, factors affecting anchorage, and principles of anchorage control. Key anchorage concepts discussed include differential force, root surface area, and using teeth with greater root surface area or extraoral sources to reinforce anchorage.
1. Anchorage refers to the resistance to unwanted tooth movement when orthodontic forces are applied. It can be intraoral (from teeth or bone within the mouth) or extraoral (from outside the mouth like a headgear).
2. Anchorage is classified based on how forces are applied (simple, stationary, reciprocal), whether forces act within a single jaw or between jaws, the number of anchorage units used (single, compound, reinforced), and the location of anchorage units (intraoral, extraoral, muscular).
3. Temporary anchorage devices (TADs) like implants can also be used as absolute anchorage units to enhance orthodontic treatment without relying on teeth
Temporary anchorage devices in orthodonticsParag Deshmukh
The document discusses temporary anchorage devices (TADs) used in orthodontics, specifically mini-implants. It provides background on how TADs have improved orthodontic anchorage compared to traditional methods. The introduction describes how TADs solve limitations of extraoral anchorage devices and provide reliable anchorage. It then covers implant terminology, history, parts, types, indications, bone physiology, and clinical applications of TADs as absolute anchorage for various tooth movements.
Recent advances in orthodontics include improvements to brackets, bonding materials, wires, software, and appliances. Brackets are now made from stronger materials with coatings to reduce friction and promote oral health. New bonding materials bond more effectively in fewer steps. Wires now come in various alloys and shapes to apply lighter continuous forces. Software includes apps for patients and artificial intelligence to assist with treatment planning. These technological advances have improved orthodontic treatment outcomes.
The document discusses various designs of dental implants. It describes the history of dental implants from ancient times to modern osseointegrated implants developed by Brånemark in the 1950s. It then classifies implant designs based on type of placement (e.g. endosteal, subperiosteal), macroscopic body design (e.g. cylindrical, threaded), and components (e.g. crest module, body, apex). Key design considerations discussed include thread pitch, shape and depth, implant diameter and length, and one-piece versus two-piece designs.
This document discusses two main types of space closure mechanics in orthodontic treatment: closing loop archwires and sliding mechanics. Closing loop archwires involve individually fabricated loops to retract teeth into extraction spaces, while sliding mechanics use elastic chains or coil springs to slide teeth along archwires into spaces. The document provides details on techniques, advantages, and disadvantages of each approach as well as factors influencing effective space closure.
This document discusses different guidelines for determining the vertical position of orthodontic brackets. It begins by outlining Angle's initial proposal to place bands at the center of the tooth surface and discusses subsequent modifications by Edgewise and Begg appliances. It then examines guidelines proposed by Andrew, Roth, Alexander, Bishara, and McLaughlin/MBT. Each approach has limitations in addressing individual tooth variations. The document concludes by describing Kalange's method, which uses marginal ridge lines and measurements from molars and premolars to determine bracket heights aimed at leveling marginal ridges.
The document discusses dental implants and temporary anchorage devices (TADs) used in orthodontics. It covers the history and timeline of implant dentistry, defining osseointegration. Common TAD types are miniscrews and miniplates, usually made of titanium. Placement involves a minor surgical procedure, and success depends on factors like bone density, design, and immediate/delayed loading. TADs provide orthodontists an alternative to traditional anchorage methods for tooth movement.
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
Chin cup for treatment of growing class III patientbilal falahi
Chin cups are a traditional orthopedic appliance used to treat Class III malocclusions. While some studies have found chin cups can temporarily retard mandibular growth and correct the malocclusion through backward rotation, the effects are not consistently maintained long-term. Meta-analyses found chin cups significantly reduced SNB angle and increased ANB and Wits appraisal in the short-term, but heterogeneity between studies was high. Chin cups also increased SN-ML angle and decreased gonial angle, indicating a tendency for increased vertical growth and posterior mandibular rotation. However, long-term stability and the effects of vertical chin cups require more research due to limited data.
This document discusses mini dental implants used for orthodontic anchorage. It provides details on:
- The history and development of mini implants beginning in the 1940s and their increasing use from the 1960s onward.
- Types of mini implants based on material, site of insertion, head design, shape and other characteristics.
- Factors to consider for safe mini implant insertion including diameter, length, drilling size, and safety distances from roots.
- Surgical techniques for mini implant placement including site selection, angles of insertion, and immediate loading protocols.
Orthodontic brackets are components bonded to teeth that transfer force from archwires to move teeth into proper alignment and function. There are various bracket designs that differ in material, size, shape, and prescription. The development of pre-adjusted edgewise brackets aimed to directly guide teeth into normal occlusion with fewer bends in the archwire. However, individual variations still require some adjustments to achieve ideal positioning. Modern bracket types include self-ligating, ceramic, and lingual systems that offer enhanced aesthetics, mechanics, or patient comfort.
This document provides an overview of self-ligating brackets in orthodontics. It discusses the history of self-ligating brackets dating back to 1935. It distinguishes between active and passive self-ligating brackets and describes their mechanisms. The advantages of self-ligating brackets include lower friction, reduced treatment time, and better infection control compared to conventional brackets. However, some argue they have less control of minor tooth movements in later stages of treatment. Overall, the document provides a comprehensive review of self-ligating bracket types, features, advantages, and limitations.
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.
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 dealing with difficult anchorage situations using orthodontic miniscrew implants. It provides an overview of the history of skeletal anchorage, types of temporary anchorage devices (TADs), advantages of using TADs, and considerations for miniscrew implant placement. The document also outlines various uses of miniscrew implants for difficult anchorage cases, including intrusion of anterior and posterior teeth, molar mesialization, crossbite correction, molar distalization, anterior retraction, and use with functional appliances. Miniscrew implants are concluded to be an increasingly popular option due to their easy use, versatility, and ability to enable immediate loading.
This document discusses different types of anchorage used in orthodontics. It defines anchorage as the resistance to tooth movement and classifies it as simple, stationary, or reciprocal depending on the force application. Anchorage can also be intra-maxillary, inter-maxillary, or involve single, compound, or multiple teeth. Common sites of intraoral anchorage include teeth, alveolar bone, basal bone, and musculature. Extraoral anchorage involves structures like the cranium, cervical region, or facial bones. Causes and prevention of anchorage loss are also reviewed. The document emphasizes the importance of anchorage control for optimal orthodontic 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
Implants in orthodontics / /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
00919248678078
Endodontically treated teeth require careful treatment planning to maintain a proper coronal seal and prevent recontamination of the root canal. Both an adequate endodontic treatment and coronal restoration are important for long-term success, with some studies finding the quality of restoration has a greater impact. Teeth with significant loss of structure often require full coverage restorations to protect against fracture from occlusal stresses. Factors like post length, diameter and ferrule effect should be considered for teeth receiving posts and cores. Maintaining biologic width is also important for proper restoration margins.
Extrusion by reverse curves archwires by Dr Maher FoudaMaher Fouda
The document discusses the use of accentuated curve Niti wires and anterior box elastics to correct anterior open bites. It describes how the curved wires provide intrusive forces on the anterior and posterior teeth while the elastics balance out the force anteriorly, allowing intrusion of the posterior segments. This results in closure of the open bite as the mandible rotates anteriorly. The treatment is effective but requires strict patient compliance with elastic wear. Potential risks include gummy smiles and gingival recession if elastics are worn too long.
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.
This document provides an overview of anchorage in orthodontics. It defines anchorage and discusses various classifications of anchorage including based on the manner of force application, jaws involved, number of anchor units, and site of anchorage. It also covers anchorage loss, sources of anchorage for removable and fixed appliances, factors affecting anchorage, and principles of anchorage control. Key anchorage concepts discussed include differential force, root surface area, and using teeth with greater root surface area or extraoral sources to reinforce anchorage.
1. Anchorage refers to the resistance to unwanted tooth movement when orthodontic forces are applied. It can be intraoral (from teeth or bone within the mouth) or extraoral (from outside the mouth like a headgear).
2. Anchorage is classified based on how forces are applied (simple, stationary, reciprocal), whether forces act within a single jaw or between jaws, the number of anchorage units used (single, compound, reinforced), and the location of anchorage units (intraoral, extraoral, muscular).
3. Temporary anchorage devices (TADs) like implants can also be used as absolute anchorage units to enhance orthodontic treatment without relying on teeth
Temporary anchorage devices in orthodonticsParag Deshmukh
The document discusses temporary anchorage devices (TADs) used in orthodontics, specifically mini-implants. It provides background on how TADs have improved orthodontic anchorage compared to traditional methods. The introduction describes how TADs solve limitations of extraoral anchorage devices and provide reliable anchorage. It then covers implant terminology, history, parts, types, indications, bone physiology, and clinical applications of TADs as absolute anchorage for various tooth movements.
Recent advances in orthodontics include improvements to brackets, bonding materials, wires, software, and appliances. Brackets are now made from stronger materials with coatings to reduce friction and promote oral health. New bonding materials bond more effectively in fewer steps. Wires now come in various alloys and shapes to apply lighter continuous forces. Software includes apps for patients and artificial intelligence to assist with treatment planning. These technological advances have improved orthodontic treatment outcomes.
The document discusses various designs of dental implants. It describes the history of dental implants from ancient times to modern osseointegrated implants developed by Brånemark in the 1950s. It then classifies implant designs based on type of placement (e.g. endosteal, subperiosteal), macroscopic body design (e.g. cylindrical, threaded), and components (e.g. crest module, body, apex). Key design considerations discussed include thread pitch, shape and depth, implant diameter and length, and one-piece versus two-piece designs.
This document discusses two main types of space closure mechanics in orthodontic treatment: closing loop archwires and sliding mechanics. Closing loop archwires involve individually fabricated loops to retract teeth into extraction spaces, while sliding mechanics use elastic chains or coil springs to slide teeth along archwires into spaces. The document provides details on techniques, advantages, and disadvantages of each approach as well as factors influencing effective space closure.
This document discusses different guidelines for determining the vertical position of orthodontic brackets. It begins by outlining Angle's initial proposal to place bands at the center of the tooth surface and discusses subsequent modifications by Edgewise and Begg appliances. It then examines guidelines proposed by Andrew, Roth, Alexander, Bishara, and McLaughlin/MBT. Each approach has limitations in addressing individual tooth variations. The document concludes by describing Kalange's method, which uses marginal ridge lines and measurements from molars and premolars to determine bracket heights aimed at leveling marginal ridges.
The document discusses dental implants and temporary anchorage devices (TADs) used in orthodontics. It covers the history and timeline of implant dentistry, defining osseointegration. Common TAD types are miniscrews and miniplates, usually made of titanium. Placement involves a minor surgical procedure, and success depends on factors like bone density, design, and immediate/delayed loading. TADs provide orthodontists an alternative to traditional anchorage methods for tooth movement.
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
Chin cup for treatment of growing class III patientbilal falahi
Chin cups are a traditional orthopedic appliance used to treat Class III malocclusions. While some studies have found chin cups can temporarily retard mandibular growth and correct the malocclusion through backward rotation, the effects are not consistently maintained long-term. Meta-analyses found chin cups significantly reduced SNB angle and increased ANB and Wits appraisal in the short-term, but heterogeneity between studies was high. Chin cups also increased SN-ML angle and decreased gonial angle, indicating a tendency for increased vertical growth and posterior mandibular rotation. However, long-term stability and the effects of vertical chin cups require more research due to limited data.
This document discusses mini dental implants used for orthodontic anchorage. It provides details on:
- The history and development of mini implants beginning in the 1940s and their increasing use from the 1960s onward.
- Types of mini implants based on material, site of insertion, head design, shape and other characteristics.
- Factors to consider for safe mini implant insertion including diameter, length, drilling size, and safety distances from roots.
- Surgical techniques for mini implant placement including site selection, angles of insertion, and immediate loading protocols.
Orthodontic brackets are components bonded to teeth that transfer force from archwires to move teeth into proper alignment and function. There are various bracket designs that differ in material, size, shape, and prescription. The development of pre-adjusted edgewise brackets aimed to directly guide teeth into normal occlusion with fewer bends in the archwire. However, individual variations still require some adjustments to achieve ideal positioning. Modern bracket types include self-ligating, ceramic, and lingual systems that offer enhanced aesthetics, mechanics, or patient comfort.
This document provides an overview of self-ligating brackets in orthodontics. It discusses the history of self-ligating brackets dating back to 1935. It distinguishes between active and passive self-ligating brackets and describes their mechanisms. The advantages of self-ligating brackets include lower friction, reduced treatment time, and better infection control compared to conventional brackets. However, some argue they have less control of minor tooth movements in later stages of treatment. Overall, the document provides a comprehensive review of self-ligating bracket types, features, advantages, and limitations.
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.
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 dealing with difficult anchorage situations using orthodontic miniscrew implants. It provides an overview of the history of skeletal anchorage, types of temporary anchorage devices (TADs), advantages of using TADs, and considerations for miniscrew implant placement. The document also outlines various uses of miniscrew implants for difficult anchorage cases, including intrusion of anterior and posterior teeth, molar mesialization, crossbite correction, molar distalization, anterior retraction, and use with functional appliances. Miniscrew implants are concluded to be an increasingly popular option due to their easy use, versatility, and ability to enable immediate loading.
This document discusses different types of anchorage used in orthodontics. It defines anchorage as the resistance to tooth movement and classifies it as simple, stationary, or reciprocal depending on the force application. Anchorage can also be intra-maxillary, inter-maxillary, or involve single, compound, or multiple teeth. Common sites of intraoral anchorage include teeth, alveolar bone, basal bone, and musculature. Extraoral anchorage involves structures like the cranium, cervical region, or facial bones. Causes and prevention of anchorage loss are also reviewed. The document emphasizes the importance of anchorage control for optimal orthodontic 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
Implants in orthodontics / /certified fixed orthodontic courses by Indian den...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
00919248678078
Endodontically treated teeth require careful treatment planning to maintain a proper coronal seal and prevent recontamination of the root canal. Both an adequate endodontic treatment and coronal restoration are important for long-term success, with some studies finding the quality of restoration has a greater impact. Teeth with significant loss of structure often require full coverage restorations to protect against fracture from occlusal stresses. Factors like post length, diameter and ferrule effect should be considered for teeth receiving posts and cores. Maintaining biologic width is also important for proper restoration margins.
This document provides an overview of using dental implants for orthodontic anchorage. It discusses the history of implants, defines relevant terminology, and classifies implants based on position, material, size, and shape. The benefits of implants as anchorage devices and various implant designs are described. Acceptable placement sites are outlined as well as surgical procedures and bone-implant interface. Loading protocols, problems encountered, and other applications are summarized. The document concludes by referencing additional sources.
The Basics of Splinting in Dentoalveolar Traumatology.pptxulster University
In order to even consider the use of a splint, it is necessary to know whether the traumatized tooth is primary or permanent and what kind of injury it has suffered.
In general, the use of a splint is not recommended for injuries to milk teeth, such as luxation or avulsion. Luxated milk teeth are most often extracted.
Repositioning is not recommended because there is a risk of infection which could endanger the tooth
Modern trends in dentoalveolar traumatology support the use of functional and flexible splints for luxation and avulsion.
The prognosis for traumatized teeth is more determined by the type of trauma than the type of splint selected.
The type of splint and the duration of immobilization, therefore, may not be considered significant variables in terms of the outcome of healing.
- The document discusses the history and development of orthodontic mini-implants from their origins in the 1940s using vitallium screws in dogs to their current widespread use. It describes how mini-implants have replaced other anchorage devices due to their small size and versatility.
- It defines mini-implants as temporary anchorage devices (TADs) that are temporarily fixed to bone to enhance orthodontic anchorage. It discusses their parts including the head, core, and threads. Mini-implants come in various diameters and thread lengths depending on the insertion site.
- The document covers mini-implant design features, insertion techniques including drill-free versus predrilling methods, factors
Exploring Materials for Orthodontic Mini-Implants: A Comprehensive Overview.pdfsafabasiouny1
A temporary anchorage device (TAD) is a device that is temporarily fixed to bone for the purpose of enhancing orthodontic anchorage either by supporting the teeth of the reactive unit ( indirect anchorage ) or by obviating the need for the reactive unit altogether(direct anchorage), and which is subsequently removed after use.
They can be located transosteally, subperiosteally or endosteally; and they can be fixed to bone either mechanically (cortically stabilized) or biochemecially (osseointegrated). It should also be pointed out that dental implants placed for the ultimate purpose of supporting a prosthesis, regardless of the fact that they may be used for orthodontic anchorage, are not considered temporary anchorage devices since they are not removed and discarded after orthodontic treatment. By using dental implants and temporary anchorage devices for orthodontic purposes we are able to obtain zero anchorage loss.
Currently, several terms are used to refer to skeletal anchorage devices, the most inclusive being temporary anchorage devices. Other names include implants, mini-implants, miniscrews, micro-screws, screws, mini-plates, and plates.
Implants and mini-implants usually necessitate osseointegration for stability, whereas screws, miniscrews and micro-screws are generally loaded immediately after placement and receive their stability from mechanical retention in the bone
Plates are attached to bone through a surgical procedure necessitating the elevation of a flap. A portion is left emerging in the oral cavity to serve as appoint of application of the force system
Facial implant and implant retained craniofacial prostheses nnPallawi Sinha
This document discusses implant-retained craniofacial prostheses. It covers the advantages of maxillofacial implants over conventional adhesives for prosthesis retention. It also discusses patient assessment, treatment planning, surgical techniques for implant placement, different types of craniofacial prostheses (auricular, ocular, nasal, midfacial), abutment sites, follow-up care, and a review of literature on the topic. The document focuses on osseointegrated implants as a method for retaining craniofacial prostheses and improving patients' quality of life.
The document provides an overview of various implant systems used in India, including their designs, materials, and indications. It discusses epiosteal, endosteal, and transosteal implants and summarizes several popular systems like Branemark, Frialit, ITI, Core Vent, Integral, and Pitt-Easy. Key features include Branemark's use of fixtures and gold cylinders, Frialit's stepped cylinders and screws, ITI's hollow cylinders and screws, and Core Vent's perforated and hollow basket designs.
The document discusses various dental implant systems used in India, including their designs, materials, and indications. It summarizes the Branemark system, which introduced the term osseointegration. It also describes the Replace Select Tapered system, Frialit system, ITI system, Core Vent system, Integral system, and Pitt-Easy system - outlining their key features such as diameters, lengths, surfaces, advantages, and common uses. The document provides an overview of important implant systems and their characteristics.
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
JOURNAL CLUB ON THE OUTCOME OF ORAL IMPLANTS PLACED IN BONE WITH LIMITED BU...Shilpa Shiv
This document summarizes a study that evaluated the outcomes of oral implants placed in bone with limited bucco-oral dimensions over a 3-year period. 100 implants were placed in 28 patients. The study found that the implants had a 100% survival rate over 3 years and that the marginal bone levels around the implants remained stable. The results indicate that implants can successfully be placed in sites with up to 4.5mm of bucco-oral bone width without the need for bone grafting, providing patients maintain good oral hygiene.
This document provides an overview of dental implants, including their history, types, biomaterials used, and applications in orthodontics. It discusses how dental implants originated in ancient civilizations and have evolved to include endosseous, subperiosteal, and transosseous implants made of materials like titanium. Mini-implants were later developed for orthodontic anchorage and are placed using direct or indirect methods. Dental implants and mini-implants provide effective anchorage for difficult orthodontic tooth movements.
This document discusses the history and evolution of lingual orthodontics. It describes the progression of lingual bracket designs through 7 generations by Ormco, with the current generation (VII) being low profile and refined. Other lingual bracket systems are also summarized, including Creekmore, Fujita, Begg, and self-ligating designs. The advantages of lingual over labial treatment are noted as avoiding damage to the facial surfaces and lips. Key challenges of lingual orthodontics are the short interbracket distances requiring precise bracket placement and customized archwires and mechanics.
Tooth loss from disease has always been a feature of mankind’s existence. For centuries people have attempted to replace missing teeth using implantation.
This presentation includes an introduction to implant osseointegration mechanism, various implant biomaterials, selection critria, and recent advances in the field of implant biomaterials.
Orthodontic implants /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
External fixation is a stabilization device placed outside the skin using pins or wires connected to bars. It has several advantages over internal fixation, including less soft tissue damage, adjustable rigidity, and lower risk of infection. However, it also has disadvantages like restricted motion and pin site complications. Proper pin placement and construct design are important to provide adequate stability while avoiding stress risers. Ring and hybrid fixators allow weight bearing and motion but pin fixators come in various configurations of increasing stiffness.
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3. Aims and objectives
Aims
-Philosophy!
-History of TADs
-Classification
-Clinical consideration
Objectives
-Discuss key design features
-Be familiar with some of the current products on the
market
4. Introduction
• Anchorage is defined as the prevention of unwanted
tooth movement. Profitt 2008
• Traditionally this was provided by anchor sites
within the mouth (intraoral anchorage) or from
outside the mouth (extraoral anchorage). Intraoral
anchor sites include teeth or other oral structures.
Extraoral anchorage is achieved by using headgear,
or facemasks.
• Another method of reinforcing anchorage is the use
of bone anchorage devices.
5. History
• Gainsforth and Higley first suggested
the use of metallic screws as anchors
back in 1945
• They studied effectiveness of vitallium
screws and stainless steel wires in the
mandibles of dogs to retract the
maxillary canine.
Vitallium is a trademark for an alloy of 65% cobalt, 30% chromium, 5%
molybdenum, and other substances. The alloy is used in dentistry and
artificial joints, because of its resistance to corrosion.
6. History
• Linkow(1969)-First reported a patient
treatment with the use of Osseo-
integrated implant for both restorative and
orthodontic purpose.
• Creekmore and Eklund (1983)- used
surgical vitallium bone screw just bellow
the anterior nasal spine to treat deep
overbite and it was 1stclinical report on the
use of TAD.
7. History
• Kanomi (1997)-first reported the clinical
use of mini-implants for orthodontic
anchorage.
• He implanted in the alveolar bone
between the root apices of mandibular
incisors and did intrusion of mandibular
incisors.
• Costa and colleagues in 1998 described
a screw with a special bracket-like head
for orthodontic use
8. History
Since then, various types of bone anchorage devices
(BAD’s) have been introduced in the market.
How effective? Numerous high quality evidence to support
effectiveness
Jambi et al 2014 Cochrane review: …..more effective than
conventional…. 15 studies, surgical anchorage vs conventional
anchorage Surgical more effective in reinforcing anchorage by 1.68mm
Alharbi et al 2018 ….13.5 % failure rate, systematic review, 46
papers
Hong et al 2016….highest success in the maxilla, 8mm or longer,
1.4mm or wider in 20 years old
9. Classification
1. According to the shape and size:
I) Conical (Cylindrical)
a) Miniscrew Implants
b) Palatal Implants
c) Prosthodontic Implants
II) Mini plate Implants
III) Disc Implants (Onplants)
2. According to Implant bone contact:
I) Osteointegrated
II) Non-osteointegrated
3. According to the application:
I ) Used only for orthodontic purposes. (Orthodontic Implants) or TAD
(temporary anchorage devices)
II ) Used for prosthodontic and
orthodontic purposes.
11. Endosseous
-These Osseo-integrated are modified form
of conventional dental implants.
-Success: 86-100% Odman et al 1991; Trisi
et al 2002
-Placed in palate,retromolar area,area of
absent or missing teeth.
-can withstand more force than
mechanically retentive implants.
Osseointegration, surface coating titanium with
calcium phosphate, calcium and titanium ions bond
13. Surgical miniplates
1.Modified or even conventional L or T
shaped surgical titanium mini plates
2.Placed in thick cortex similar to -zygomatic
region -buccal cortex of mandible.
3.Use-en mass distalization of lower arch in
class-3,maxillary intrusion of buccal
segment in openbite,en-mass maxillary
molar distalization
14. Miniscrews
• Derive their retention by mechanical means
only. Osseo-integration is not desired (to
enable easy removal)
• Some animal studies have shown that up to
58% of the screws can unintentionally osseo-
integrate (10–58%) ! Melsen and costa, 2000
15. Design features
Basic parts:
1-Head (to which attachments are
applied),
2-Collar (connects the core with the
head and provides a stop once it
encounters bone),
3-Core (part of the miniscrew which
lies within bone),
4-Thread (can be self-tapping or self-
drilling).
16. Considerations for selecting a
miniscrew
• Primary factors such as:
-material
-length
-diameter
• Secondary factors include
-head design
-platform
-soft tissue
-site of placement
-insertion technique
-loading forces
-type of tooth movement
17. Material
• Most miniscrews and other BADs are made of either
pure titanium or titanium alloy
• Some manufacturers use surgical stainless steel. Leone
mini implant system® , Bio Materials Korea® (ACR
series, Mplant and CAPlant)
• Titanium has proven properties of biocompatibility, is
lightweight, has excellent resistance to stress, fracture
and corrosion and is widely used.
• Pure titanium however has less fatigue strength than
titanium alloys. Spider screw anchorage system®
from HDC Italy, TOMAS system®
• Miniscrews are manufactured with a smooth
endosseous surface.
18. Titanium vs titanium alloy
• A titanium alloy, titanium-6 aluminum-4
vanadium, is used to overcome this
disadvantage.
• Clinically, the insertion technique is the
main difference between the two materials.
• Pure titanium= Pre-drilling is usually required
especially in high bone density sites.
• Vector TAS® , Ortho Easy®, Infinitas®, Neo-
Anchor Plus®
19. Endosseous
length
• Body part of the miniscrew
that lies within bone and
beneath soft tissues
• Ranges from 5 to 15 mm
• Location of adjacent
anatomical structures
(dental roots, nerves and
blood vessels)
• Bone depth
• Maxilla vs mandible
20. Endosseous length
Maxilla is composed more of cancellous bone, the
length of the implant should be longer and thinner
in contrast to miniscrews used in the mandible.
If the cortical bone is >1 mm in thickness, usually a
6 mm long miniscrew is adequate for primary
stability.
However, if the cortical bone is <1 mm thick, 8 mm
miniscrews are recommended for primary stability.
21. Endosseous length
Crismani et.al. 2010
….8 mm miniscrews were associated with 22%
higher success than 6 mm ones…supported by
Hong et al 2016
….minimum 8 mm length and 1.2 mm diameter
achieved good stability…
-Overall success rate= 83%
Maxilla=87%
Mand=80%
-Alharbi et al 2018, length not a significant factor!
22. Diameter
• Refers to the widest part of
miniscrew body
• Ranges from 1.2 to 2.3 mm
• Diameter site, material and
method of insertion of the
miniscrew.
• 1.3 mm =interradicularly.
• 1.3-1.5 mm= alveolar process.
• 2mm= In the retromolar region.
• <1.2mm higher failure rates.
• >2mm damage to roots.
23. Diameter
-Miyawaki et al 2003
concluded that their 1-mm thick screw performed
significantly worse than those with diameters of 1.5
and 2.3 mm.
-Wiechmann et al 2007 reported worse results for
1.1-mm thick screws than for 1.6-mm ones.
-Crismani et al 2010 1.2 mm or greater diameter
had good success rates (>70 %)
24. Head
• An ideal head design should be compatible with
the current edgewise bracket system
• Numerous head designs=grooves, ball ends,
tunnels, buttons and slots to aid the attachment
of auxiliary appliances such as ligature wires,
elastic thread and elastomeric chains
• One piece vs two piece design
25. The ACR CAPlantTM from
Bio Materials Korea®.The IMTECTM cope ortho-implant
system from 3M Unitek®.
27. Transmucosal
neck /collar
• The transmucosal neck=
emerges through the soft
tissue superficial to the
cortical plate
• Purpose of adequate
transmucosal neck design is
to prevent gingival irritation
from the attached auxiliaries
and minimise gingival
overgrowth.
• 1-2 mm
• Greater mechanical stability
• Almost all the manufacturers
incorporate the platform
design in their miniscrews,
with the exception of the
MAS system.
29. Site of placement
• As a general rule,
miniscrews
inserted in D1 and
D2 regions,
achieve greater
stability and those
inserted in D4
regions are
associated with
higher failure
rates
• Insertion at 30–
40° to the dental
axis allows the
insertion of a
longer screw in
the available bone
depth
33. Distribution of the inferior alveolar nerve as it travels through the
mandibular canal.
34. Insertion technique
1-self-drilling
2-self-tapping (pre-drilling)= initial
placement of pilot hole in the bone
• The ideal diameter of pilot hole should
be around 80% of the external
diameter of the screw
• Miniscrew diameter 0.2 to 0.5 mm
>pilot hole
• Pre-drillingless than 1.3 mm
diameter, made of commercially pure
titanium and the bone at the insertion
site is thick.
• Self-drilling more than 1.3 mm
diameter, made of a titanium alloy and
the bone at the insertion site is thin.
35. Insertion
technique
Self drilling:
Problems generated from accidental drilling can be
avoided (overenlargement of the pilot hole,
overheating from high drill speeds and drilling into
dental roots) (Mah and Bergstrand, 2005).
36. Loading force
-Loaded immediately or after a healing period of 2
weeks (Melsen and Costa, 2000; Liou et al., 2004).
-If loaded immediately25 g should be applied
(Cornelis et al., 2007).
-After 2 weeks higher forces can be applied
(Ohashi et al., 2006).
-Can withstand forces ranging between 50– 600 g
(Ohashi et al.,2006; Miyawaki et al., 2003; Costa et
al., 1998).
-Upper threshold is 200 g !
-Currently there is no agreement in the literature
on the threshold limit (Cornelis et al., 2007).
37. complications
Insertion
• Damage to dental roots (Kadioglu et al., 2008; Rossouw
and Buschang, 2009).
• Damage to PDL
• Akylosis
• Loss of vitality
• Relevant anatomy!, max. sinus, greater palatine neve,
inferior alveolar nerve
• Bending/fracture
Loading
• Poor OH, mucosal irritation
• Peri-implantitis
• Soft tissue hypertrophy
38.
39.
40.
41.
42.
43.
44.
45. Conclusion
• Since their introduction, orthodontic miniscrews have
shifted the paradigm of anchorage
• In this article, we reviewed the development of
miniscrews and outlined the general design features
as well as specific design features of current
miniscrews in the market.
• Practical examples can be found elsewhere as we
aimed in this article to improve the readers’ theoretical
and clinical knowledge and focused on one type of bone
anchorage only, the miniscrews.
• Finally, practitioners are encouraged to attend
appropriate training courses and to restrict themselves
to limited range of screws that suit their particular case
load.