Treatment of a class II malocclusion patient with twin block appliance: a case report

Authors

  • Nilanjana Sarkar Department of Orthodontics, Sunderalal Dugar Jain Dental College and Hospital, Kolkata, West Bengal, India
  • Sumitra Reddy Department of Orthodontics, K.L.E. Society’s Institute of Dental Sciences, Bangalore, Karnataka, India
  • Sumit Goel Apollo Clinic, Gorakhpur, U. P., India

DOI:

https://doi.org/10.18203/issn.2454-2156.IntJSciRep20220402

Keywords:

Class II malocclusion, Hypodivergent growth pattern, Functional appliance

Abstract

Class II malocclusions in growing patients is commonly encountered and respond well to functional appliances, provided the clinical and cephalometric findings are favourable. In case of class II hypodivergent malocclusion, the hypodivergent pattern is established early and become prominent with progression of time. These patients have significantly smaller mandibular plane angles and smaller gonial angles. This case report describes the treatment planning of a patient of age 14 years with class II malocclusion showing hypodivergent growth pattern and moderate crowding. Treatment was started with twin block functional appliance and non-extraction approach was planned. As the patient was in his peak growth spurt stage, the functional appliance therapy use at this stage was started to take advantage of that. Fixed orthodontic appliances were placed after completion of functional appliance therapy. The treatment resulted in achievement of class I molar relation bilaterally, normal overjet and overbite and favourable soft tissue profile, facial balance and harmony.

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Author Biographies

Nilanjana Sarkar, Department of Orthodontics, Sunderalal Dugar Jain Dental College and Hospital, Kolkata, West Bengal, India

Orthodontics and Dentofacial Orthopedics,

Associate professor

Sumitra Reddy, Department of Orthodontics, K.L.E. Society’s Institute of Dental Sciences, Bangalore, Karnataka, India

Department of Orthodontics,

Professor and Head

References

McNamara JA Jr. Components of Class II malocclusion in children 8-10 years of age. Angle Orthod. 2001;51:177-202.

The Cervical Vertebral Maturation (CVM) Method for the Assessment of Optimal Treatment Timing in Dentofacial Orthopedics, Semin Orthod. 2005;11:119-29.

Pancherz H. Dentofacial orthopedics or orthognathic surgery: Is it a matter of age? Am J Orthodontics and Dentofacial Orthop. 2000;117:571-4.

Tulloch JF, Proffit WR, Phillips C. Outcomes in a 2-phase randomized clinical trial of early Class II treatment. Am J Orthod Dentofacial Orthop. 2004;125:657-67.

Huang GJ, Richmond S, Vig KWL. Evidence-Based Orthodontics, Willey Blackwell. 2011.

Clark WJ. Twin Block functional therapy. Applications in Dentofacial Orthopaedics.Mosby, 2nd edition. 2002;1-10.

White L. Early Orthodontic intervention. Am J Orthod. 1998;113:24-8.

Bench RW, Gugino CF, Hilgers JJ. Bioprogressive therapy, Part 8. J Clin Orthod. 1978;12:279-98.

Bishara SE, Ziaja RR. Functional appliances: A review. Am J Orthod. 1989;95:250-8.

Arvystas MG. The rationale for early orthodontic treatment. Am J Orthod. 1998;113:15-8.

Murillo JC. Mixed-dentition treatment with the selective functional appliance. Am J Orthod. 1973;63:596-605.

Cozza P, De Toffol L. Funtional appliance treatment for severe class II malocclusion in the early mixed dentition. J Clin Orthod. 2003;37(2):69-74.

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Published

2022-02-21

Issue

Section

Case Reports