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Year : 2010  |  Volume : 1  |  Issue : 4  |  Page : 218-222

Mandibular dimensional changes and skeletal maturity

Department of Pedodontics, The Oxford Dental College, Hospital and Research Centre, Bangalore, India

Correspondence Address:
Priya Subramaniam
Department of Pedodontics, The Oxford Dental College, Hospital and Research Centre, Bommanahalli, Hosur Road, Bangalore
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-237X.76387

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Aim: Growth and development of the human face provides a fascinating interplay of form and function. Among the various facial bones, the mandible plays a very important role during various growth-modification therapies. These treatment modalities will yield a better result in less time if properly correlated with skeletal maturity. It is very essential to know where the site of growth occurs and also the time when it occurs or ceases to occur. This study was conducted to assess the mandibular dimensions at various stages of skeletal maturation. Materials and Methods: The subjects included 6 to 18-year-old children who were grouped according to their middle phalanx of the third finger stages of skeletal maturity. Lateral cephalographs were taken and, from their cephalometric tracings, linear and angular measurements of the mandible were made. The values obtained were subjected to statistical analysis. Results: Results showed that the mandibular height, length and symphysis thickness increased with skeletal maturity. An increase in angles SNB (Sella, Nasion, Supramentale) and L1-MP (Long axis lower incisors- Mandibular plane) and a decrease in the gonial angle and ANB (Subspinale, Nasion, Supramentale) angle were observed. Conclusion: The study showed a significant correlation between mandibular growth and skeletal maturity.

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