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Comparison of the gonial angle measurements on Lateral Cephalogram and both hemispheres of Orthopantomogram

Authors

  • Shahab Adil
  • Mubashir Hayat Awan
  • Imran Khan
  • Kawish Syed

Keywords:

Gonial angle, orthopantomogram, lateral cephalometric radiograph

Abstract

Introduction: Gonial angle is one of the most important values ascertained in lateral cephalogram (lat ceph) tracing. According to the literature, gonial angle can be measured from orthopantomogram (OPG). The objective of this study was to test the reliability of left and right hemispheres of OPG in measuring the gonial angle and to compare these values with lateral ceph measurements.

Material and Methods: A hospital based survey was conducted based on patients visiting Orthodontic Department, Peshawar Dental Hospital, Peshawar, from 1st January 2012 to 31st March 2015. The radiographs (OPG and lateral ceph) were advised and gonial angle traced to check their accuracy.

Results: The sample comprised of 80 patients with class I malocclusion. Mean value of gonial angle measured from lateral ceph was 125.4 + 6.34, from left OPG was 123.8 + 6.17 and from right OPG was 123.2 + 6.38.

Conclusions: The gonial angle measured from both sides (left and right) of OPG is equally reliable but significantly different than gonial angle measured from lateral ceph.

Author Biographies

Shahab Adil

BDS, FCPS, Assistant Professor Orthodontics and Dentofacial Orthopedics, Peshawar Dental College, Peshawar

Mubashir Hayat Awan

BDS, FCPS-II trainee, Department of Orthodontics, Peshawar Dental College and Hospital

Imran Khan

BDS, MSc, Assistant Professor, Oral Pathology, Islamabad Medical & Dental College, Bahria University, Islamabad

Kawish Syed

BDS, MCPS, Assistant Professor Periodontology, Sardar Begum Dental College, Peshawar

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Published

01-02-2016

How to Cite

Adil, S., Awan, M. H., Khan, I., & Syed, K. (2016). Comparison of the gonial angle measurements on Lateral Cephalogram and both hemispheres of Orthopantomogram. Pakistan Orthodontic Journal, 7(2), 48–50. Retrieved from https://poj.org.pk/index.php/poj/article/view/117

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