Frontal Facial Morphological Changes related to Twin Block Appliance using Posteroanterior Cephalogram - A Prospective Comparative Study
Journal Title: International Journal of Contemporary Medical Research - Year 2018, Vol 5, Issue 11
Abstract
Introduction: The class II malocclusion is one of the most common orthodontic problems and is seen in nearly 1/3rd of the population. Study was done to assess the treatment induced dentoskeletal cephalometric changes in the frontal facial aspect using the frontal cephalogram. Material and methods: A total of 10 patients of either sex with skeletal class II malocclusion and requiring therapy using twin block myofunctional appliance were included in the study.Standardized digital frontal and lateral cephalograms were taken both pre and post-treatment and Pre-functional and post -functional evaluation of skeletal landmarks and dental landmarks were carried out. The results thus obtained were tabulated and subjected to statistical analysis. A p value of less than 0.05 was considered statistically significant. Results: Statistically significant correlation (p≤0.05) was found in the following parameters ie ICA (Inter condylar angle), AFH (Anterior facial height), PFH (Posterior facial height), Z-Co, Total facial area, AG-Me-AG when the pre and post treatment variables were compared on the PA cephalograms. Similarly, statistically significant correlation (p≤0.05) was found in the Co-Go (Ramal length), Co-Gn (Effective mandibular length), AFH (Anterior facial height), PFH (Posterior facial height), MPA (Mandibular plane angle) and N perp PG when the pre and post treatment variables were compared on the lateral cephalograms. For the rest of the parameters on either cephalograms, the comparison revealed no data of statistical significance. Conclusion: In conclusion, we believe that the overall cephalometric readings shows minimal change in width but other parameters corresponding to antero-posterior positioning and vertical height shows increment which is contributing to the balanced facial proportions.
Authors and Affiliations
Aakanksha Kashyap, Roopa Jatti
Keywords
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