Removable orthodontic appliances. /certified fixed orthodontic courses by Indian dental academy
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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
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Removable orthodontic appliances. /certified fixed orthodontic courses by Indian dental academy
- 1. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
- 3. Removable Appliances • Advantages & disadvantages • Brief history & development • Major uses of removables • • • • • Growth modification Limited tooth movement Retention Adjuncts to treatment Mild to moderate malocclusions www.indiandentalacademy.com
- 4. Advantages • • • • • Appealing to patients especially adults Inexpensive Easy to make and adjust Initially less chair time Allow for some types of growth guidance www.indiandentalacademy.com
- 5. Disadvantages • Totally cooperation dependant !!! • Limited to less complex movement • Limited range of movement www.indiandentalacademy.com
- 6. Development of Removables • USA- fixed appliances- Edward Angle • Minimal usage of removable appliances Precise positioning of teeth • Europe-removable appliances • Geographic separation • Social welfare systems-limited tx. for masses • Scarcity of precious metals for fixed appliances Alterations in function produced by removables give stable correction of malocclusion www.indiandentalacademy.com
- 7. Removables in Europe • Growth Guidance with Functional Appliances • Change mandibular posture • Open & forward • Pressure from stretch of muscle & soft tissues transmitted to teeth & bone moving teeth and modifying growth www.indiandentalacademy.com
- 8. Today Dichotomy Disappeared Instantaneous exchange of ideas & info. Politics, economics, travel, electronic age www.indiandentalacademy.com
- 9. Can We Grow Mandibles? Chapt. 8 Contemporary Orthodontics “An acceleration of (mand) growth often occurs when a functional appliance is used … , but the final size of the mandible is little if any larger than it would have been without treatment.” Other functional appliance tx. effects: • Mand. teeth forward, max.teeth back- Cl. II el. effect • Restraint of forward growth of maxilla- HG effect www.indiandentalacademy.com
- 10. Tooth-borne Functional Appliances • Activator (Andresen) • Bionator (Balters) www.indiandentalacademy.com
- 11. • Herbst • Twin Block (Clark) www.indiandentalacademy.com
- 13. Limited Tooth Movement Appliance Design • Acrylic plate – stability • Active portion – force application • Clasps & occlusal rests- retention www.indiandentalacademy.com
- 14. Acrylic Plate Maintenance Plate •Stabilize •Space maintenance •Replace tooth •Bite Plane •Posterior overlay www.indiandentalacademy.com
- 16. Active Portion • Expansion – screws • Repositioning teeth – springs • Space closing – labial bow & springs www.indiandentalacademy.com
- 19. Anterior Cross-bite Primary Dentition www.indiandentalacademy.com
- 21. Springs Posterior space regaining Spring winding correct www.indiandentalacademy.com incorrect
- 24. Clasps & Rests • Adams • C •Ball •Occlusal rest •Arrowhead www.indiandentalacademy.com
- 26. Hawley Retainer With or without ant. or post. biteplate www.indiandentalacademy.com
- 29. Invisible Essix Retainer Vacupressureformed Biostar Machine www.indiandentalacademy.com
- 32. Removable Appliances Used in Mild to Moderate Malocclusion More to come www.indiandentalacademy.com
- 33. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com