Mandibular protraction 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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Mandibular protraction appliances /certified fixed orthodontic courses by Indian dental academy
- 1. MANDIBULAR PROTRACTION APPLIANCES NO. 1 www.indiandentalacademy.com
- 2. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
- 3. MANDIBULAR PROTRACTION APPLIANCES NO. 2 www.indiandentalacademy.com
- 4. MANDIBULAR PROTRACTION APPLIANCES NO. 2 MPA No. 3 www.indiandentalacademy.com
- 5. Construction of MPA No. 3 www.indiandentalacademy.com
- 8. MPA Drawbacks • Problems of breakage. • Restricted opening. • Patient discomfort . • Difficulty of chair side construction of the MPA No. 2 • Arch wire breakage with .018" bracket systems. www.indiandentalacademy.com
- 9. Dr. Castañon improved the MPA introduced by Dr.Coelho. Hence churro jumper was born www.indiandentalacademy.com
- 10. The Churro Jumper •as a Class II Displaced the maxilla posteriorly. •Force Rotate the mandible backward. • Tipped the maxillary molars posteriorly and intruded them. • Significantly tipped the maxillary incisors posteriorly and extruded them. www.indiandentalacademy.com
- 11. The Churro Jumper •as a Class II Significantly tipped, extruded, Force and moved the mandibular molars bodily in an anterior direction. • Significantly tipped the mandibular incisors anteriorly and intruded them. www.indiandentalacademy.com
- 12. The Churro Jumper as terminal circles are placed against the •The a Class III mesial of the mandibular molar tube and the Force maxillary canine bracket. distal of the •It is preferable to add a vertical bend that converts the Churro Jumper's force into a Class I vector, which produces less vertical thrust, incisor flaring, and anterior bite opening www.indiandentalacademy.com
- 13. •This vertical bend also allows the Churro to lie unobtrusively in the mandibular vestibule, making it less noticeable and bothersome for the patent. •The Churro Jumper can improve the effectiveness of orthodontic therapy in Class III patients who refuse to wear Class III elastics www.indiandentalacademy.com
- 14. DISADVANTAGES • The restriction of mouth opening to 30-40mm is intolerable for some patients. • Archwire breakage is common if larger wires are not used. • Patients with a low tolerance for discomfort will often break the appliance (as well as the spirit of the orthodontist). • Patients who incessantly move their mouths with chewing,talking, and nervous tics will fare poorly with it. www.indiandentalacademy.com • Its maximum effectiveness depends on a
- 15. ADVANTAGES •Provides a constant, indefatigable force • It that cannot be removed from the mouth. It can be used either unilaterally or bilaterally. • It can be used to correct Class II or Class III malocclusions. • It helps maintain anchorage, since it prevents the maxillary molars and mandibular incisors from moving into extraction sites. • The cost of construction for materials and labor is > $1 (Rs 60/-). www.indiandentalacademy.com
- 16. ADVANTAGES • It can be made as needed, from materials already present in most orthodontic offices, and does not • require an expensive inventory. • It is universal in size and can be adapted to fit any malocclusion. • When broken, it is easily and inexpensively removed and replaced. • Staff members can quickly learn how to replace an appliance. www.indiandentalacademy.com
- 17. CONSTRUCTION OF CHURRO JUMPER IN CLASS II MALOCCLUSIONS www.indiandentalacademy.com
- 32. Thank you www.indiandentalacademy.com Leader in continuing dental education www.indiandentalacademy.com