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

1. INDIAN DENTAL ACADEMY
Leader in continuing dental education
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www.indiandentalacademy.com

2. Removable Orthodontic
Appliances
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3. Removable Appliances
• Advantages & disadvantages
• Brief history & development
• Major uses of removables
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Growth modification
Limited tooth movement
Retention
Adjuncts to treatment
Mild to moderate malocclusions
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4. Advantages
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Appealing to patients especially adults
Inexpensive
Easy to make and adjust
Initially less chair time
Allow for some types of growth
guidance
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5. Disadvantages
• Totally cooperation dependant !!!
• Limited to less complex movement
• Limited range of movement
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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
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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
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8. Today Dichotomy
Disappeared
Instantaneous exchange of ideas & info.
Politics, economics, travel, electronic age
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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
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10. Tooth-borne Functional
Appliances
• Activator
(Andresen)
• Bionator
(Balters)
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11. • Herbst
• Twin Block
(Clark)
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12. Tissue-borne Functional
Appliances
Functional Regulator
(Frankel)
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13. Limited Tooth Movement
Appliance Design
• Acrylic plate – stability
• Active portion – force application
• Clasps & occlusal rests- retention
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14. Acrylic Plate
Maintenance Plate
•Stabilize
•Space maintenance
•Replace tooth
•Bite Plane
•Posterior overlay
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15. Be Creative!
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16. Active Portion
• Expansion – screws
• Repositioning teeth – springs
• Space closing – labial bow & springs
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17. Expansion Screws
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18. Springs
Anterior Alignment
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19. Anterior Cross-bite Primary Dentition
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20. Anterior Cross-bite Mixed
Dentition
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21. Springs
Posterior space regaining
Spring winding
correct
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incorrect

22. Springs
Space Closure
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23. Adjustable Labial Bow
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24. Clasps & Rests
• Adams
• C
•Ball
•Occlusal rest
•Arrowhead
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25. Retention
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Hawley
Circumferential
Spring
Invisible – Essix
Positioner
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26. Hawley Retainer
With or without ant. or post. biteplate
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27. Circumferential Retainer
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28. Spring Retainer
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29. Invisible Essix Retainer
Vacupressureformed
Biostar Machine
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30. Positioner
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31. Adjuncts to Treatment
Biteplate
Nightguard
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32. Removable Appliances Used
in Mild to Moderate
Malocclusion
More to come
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33. Thank you
For more details please visit
www.indiandentalacademy.com
www.indiandentalacademy.com