Orthodontic treament in mixed dentition
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Orthodontic treament in mixed dentition
- 2. INTRODUCTION The goal of early treatment is to correct existing or developing skeletal, dentoalveolar and muscular imbalances to improve the orofacial environment before the eruption of the permanent dentition is complete. www.indiandentalacademy.com
- 3. PRINCIPLES To eliminate primary etiologic factors if possible To eliminate occlusal discrepancies such as unilateral, bilateral posterior crossbites, anterior crossbite To correct skeletal dysplasia To manage arch length discrepancies to avoid the future extraction of teeth (premolars) to resolve crowding . www.indiandentalacademy.com
- 4. TIMING OF EARLY INTERVENTION Initiation of early treatment protocols varies according to the type of malocclusion. www.indiandentalacademy.com
- 5. UTILITY OF EARLY TREATMENT PROTOCOLS Angle classification I II III Deciduous + -- ++ Early mixed +++ (RME) +++ Late mixed ++ +++ + Early permanent + +++ -- www.indiandentalacademy.com
- 6. MALOCCLUSION • Sagittal –Dental,skeletal • Vertical-Dental,skeletal • Transverse-Dental,skeletal www.indiandentalacademy.com
- 7. Dental component in the sagittal dimension • class1-(crowding). • Class2-(increased overjet). • Class3-(reverse overjet). www.indiandentalacademy.com
- 8. Skeletal component in the sagittal dimension • Mandible-excess(prognathism) deficiency(retrognathism) . • Maxilla- excess(prognathism) deficiency(retrognathism). www.indiandentalacademy.com
- 9. Dental component in the vertical dimension • Maxillary or mandibular arches-excess or deficiency(over or undereruption). www.indiandentalacademy.com
- 10. skeletal component in the vertical dimension • Maxillary or mandibular arches-excess or deficiency. www.indiandentalacademy.com
- 11. Skeletal & dental consideration in the transverse dimension • Unilateral or bilateral posterior crossbite. www.indiandentalacademy.com
- 12. Treatment of nonskeletal problems • Treatment of tooth size/arch length discrepancy problems— serial extraction. • Correction of crowding . Serial extraction-nance method tweed method dewel method. • Correction of spacing . • Correction of crossbites of dental origin-posterior crossbite anterior crossbite . www.indiandentalacademy.com
- 13. Treatment of skeletal problems • Treatment of mandibular deficiency(vertical&anteroposterior) Functional Appliance Removable Appliance frankel11 twinblock Fixed Appliance herbst www.indiandentalacademy.com
- 19. Treatment of maxiilary deficiency(anteroposterior&vertical) • Facemask • Frankel III www.indiandentalacademy.com
- 23. TREATMENT OF MANDIBULAR EXCESS • Chincup • Functional appliance www.indiandentalacademy.com
- 24. Treatment of maxiilary deficiency(transverse) • Transverse maxillary constriction palatal expansion www.indiandentalacademy.com