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Year : 2022  |  Volume : 16  |  Issue : 2  |  Page : 123-129

Clinicoradiographic comparison of sagittal condylar guidance angle determined by dynamic and radiographic methods

Commandant, Command Military Dental Centre (SWC), Jaipur, Rajasthan, India

Correspondence Address:
Mahesh Eraiah Gowda
Command Military Dental Centre (SWC), Jaipur, Rajasthan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jodd.jodd_18_21

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Aim: This in vivo study was conducted to compare sagittal condylar guidance angle measured (SCGA) using cone-beam computed tomography (CBCT) panoramic-section and CBCT cross-section and extraoral Gothic arch tracing method (EGTM) in completely edentulous patients. Materials and Methods: Based on the inclusion and exclusion criteria, 30 completely edentulous individuals were evaluated. Radiologically, two modalities of CBCT imaging were used to record SCGA, i.e., CBCT panoramic section view and CBCT cross-sectional view. After recording, the CBCT of the patient SCGA was measured using the Frankfort horizontal reference line and mean curvature line. The most superior and most inferior points of the curvature were identified to determine the mean curvature line. SCGA was measured in the clinical method using EGTM with Hight tracers for the same patients. Data obtained using three methods were subjected to statistical analysis. Results: The mean right and left SCGA using CBCT panoramic view was 29.33 and 29.52, respectively. The mean right and left SCGA using CBCT cross-sectional view was 31.24 and 31.63, respectively. The mean right and left SCGA using extraoral Gothic arch method was 26.67 and 27, respectively. The SCGA differed significantly among the groups. Conclusion: There was a significant difference in values of SCGA when evaluated using the three techniques. The radiographic methods (CBCT panoramic section view and CBCT cross-sectional view) were comparable but varied significantly from extraoral Gothic arch tracing technique.

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