Comparison of gonial angle measurement on lateral cephalometric and orthopantomogram in different malocclusion groups
Keywords:
Gonial angle, Lateral cephalometric radiograph, Orthopantomogram, Different sagittal skeletal malocclusion classesAbstract
Introduction: Growth of the patients occurs in both vertical and horizontal directions. The pattern of the growth can be predicted from both lateral cephalogram and orthopantomogram. GA is one of the important parameter measures from both lateral cephalogram and orthopantomogram which can predict growth direction. In the previous literature GA is measured from LCR and OPG in the vertical facial growth pattern. The objective of this study is to evaluate the reliability of lateral cephalogram compared to orthopantomogram in determining the value of gonial angle in different types of malocclusion groups (Sagittal skeletal class I, II, III). Material and methods: This was a hospital-based study conducted at the Orthodontic Department, Institute of Dentistry LUMHS, Jamshoro/ Hyderabad, Sindh, Pakistan from 19 October 2020 to 12 April 2021. This study recruited 174 participants of 12 years to 30 years of age, 123 female and 51 male patients. Skeletal class I malocclusion patients are 66, skeletal class II malocclusion patients are 75, and skeletal class III malocclusion patients are 33. Radiographs lateral cephalogram and orthopantomogram were advised to patients and were selected according to the inclusion and exclusion criteria for the accuracy of the results.
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