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VOLUME 13 , ISSUE 1 ( January-June, 2021 ) > List of Articles


Correction of Skeletal Class II Using Myofunctional Appliance: A Case Report

Dweepika Garg, Santosh K Goje, Dweepna Garg

Keywords : Bilateral agenesis, Myofunctional appliance, Skeletal class II, Transposition

Citation Information : Garg D, Goje SK, Garg D. Correction of Skeletal Class II Using Myofunctional Appliance: A Case Report. CODS J Dent 2021; 13 (1):24-29.

DOI: 10.5005/jp-journals-10063-0086

License: CC BY-NC 4.0

Published Online: 27-12-2021

Copyright Statement:  Copyright © 2021; The Author(s).


Aim and objective: Correction of skeletal class II malocclusion by using myofunctional therapy. Background: B.R, a 12-year old female, reported with the chief complaint of irregularly placed teeth. Clinical examination and analysis of records showed that she had an Angle's Class I molar relationship on a Class II skeletal base with retrognathic mandible and deep mentolabial sulcus. There was reduced vertical proportion. Growth pattern was horizontal. There was increased overjet with lower central incisors missing. Transposition between 42 and 43 was seen. Oral hygiene status was fair to poor. Lips were incompetent at rest (Fig. 1). Treatment Objective was positive, the saddle angle was normal and mandibular retrognathism was due to the reduced corpus length. The patient had not attained menarche. The cervical vertebral maturation status showed the acceleration phase of growth CVMI 2 (Cervical Vertebrae Maturity Index) (Fig. 2). Treatment involved orthodontic fixed appliance mechanotherapy using metal brackets with 0.022 × 0.028 MBT prescription. Optimal orthodontic and esthetic result was achieved by nonextraction treatment protocol.

  1. Proffit WR, Fields HW. Contemporary Orthodontics 3rd ed. St Louis, Mo: Mosby; 2000:13, 96–98, 260–269, 481.
  2. Moyers RE, Riolo ML, Guire KE, et al. Differential diagnosis of class II malocclusions. Part 1. Facial types associated with class II malocclusions. Am J Orthod 1980;78(5):477–494. DOI: 10.1016/0002-9416(80)90299-7
  3. Baccetti T, Franchi L, McNamara JA Jr, et al. Early dentofacial features of class II malocclusion: a longitudinal study from the deciduous through the mixed dentition. Am J Orthod 1997;111(5):502–509. DOI: 10.1016/s0889-5406(97)70287-7
  4. McNamara JA Jr. Components of Class II malocclusion in children 8–10 years of age. Angle Orthod 1981;51(3): 171–202. DOI: 10.1043/0003-3219(1981)051<0177:COCIMI>2.0.CO;2
  5. Clark WJ. The twin block technique. A functional orthopedic appliance systemAm J Orthod Dentofacial Orthop 1988; 93(1):1–18. DOI: 10.1016/0889-5406(88)90188-6
  6. Flores-Mir C, Major PW. Cephalometric facial soft tissue changes with the twin block appliance in class II division 1 malocclusion patients. Angle Orthod 2006;76(5):876–881. DOI: 10.1043/0003-3219(2006)076[0876:CFSTCW]2.0.CO;2
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