Volume : III, Issue : XI, November - 2014

Soft Tissue Chin Thickness Comparisons in Indian Adult Class II Division 1 Subjects

Dr. Prasad Chitra, Dr. Alapati Prasanna

Abstract :

Thickness of soft tissues may affect the position and relationships among facial structures affecting facial esthetics. Such differences between skeletal and soft tissues can cause a disassociation between the position of underlying bony structures and facial appearance that may shift treatment into the range of orthognathic and cosmetic surgery. AIM: To evaluate the association between soft tissue chin (STC) thickness and mandibular divergence in adult Class II division 1 subjects. MATERIALS AND METHODS: Adult patients with Class II division 1 malocclusion and mean age of 22.4 years were divided into four groups based on cephalometric mandibular plane inclination(MP) to anterior cranial base(SN) as: Low MP/SN ≤27?, medium–low 27?to < 32?, medium– high 32? to < 37? and high ≥ 37?. The soft tissue chin (STC) thicknesses were measured at Pogonion(Pog), Gnathion(Gn) and Menton(Me). Student’s t–test, Two–way ANOVA and Post–Hoc tests were used for statistical analysis. RESULTS: All STC measurements were greater in hypodivergent and lowest in hyperdivergent groups in both genders. CONCLUSION: In Class II division 1 subjects with retrognathic mandibles, who require sagittal mandibular advancement with orthodontic or orthognathic surgical corrections, an increased soft tissue chin thickness can help in achieving esthetic facial profiles with minimal corrections.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Dr. Prasad Chitra, Dr. Alapati Prasanna Soft Tissue Chin Thickness Comparisons in Indian Adult Class II Division 1 Subjects International Journal of Scientific Research, Vol : 3, Issue : 11 November 2014

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