Does the panoramic radiography have the power to identify the gonial angle in orthodontics?
OBJECTIVE
The objective of this study was to assess gonial angle under the angle classification by comparing panoramic radiograph and lateral cephalometric radiograph.


METHODS
49 patients (25 males, 24 females) with an age range of 12-29 years participated in the present study. Subjects were retrospectively selected among those categorised as skeletal and dental Class I, II, and III malocclusion group. Using lateral cephalometric radiograph, mandibular and ramal planes were drawn and based on these planes. Gonial angle was determined from two tangents which were drawn from the inferior border of the mandible and posterior borders of the condyle and ramus of both sides in the panoramic radiographs. Multiple comparison tests (ANOVA) were used to determine differences between the three angle groups.


RESULTS
There were no significant differences between Class I, II, and III malocclusion group values of gonial angles determined by lateral cephalometric radiograph and panoramic radiographs (P > 0.05).


CONCLUSIONS
Panoramic radiograph results were shown to be as reliable as lateral cephalometric radiograph in all angle classifications. Panoramic radiography can be used as an alternative radiographic technique to detect gonial angle in orthodontic patients.
Department of Orthodontics, Faculty of Dentistry, Gaziantep University, 27310 Gaziantep, Turkey. ridvan.oksayan@hotmail.com
Ridvan
R
Okşayan
Ali Murat
AM
Aktan
Oral
O
Sökücü
Esin
E
Haştar
Mehmet Ertuğrul
ME
Ciftci
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002508:Cephalometry / Q000379:methods; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000175:diagnosis / Q000000981:diagnostic imaging; D008334:Mandible / Q000000981:diagnostic imaging*; D008335:Mandibular Condyle / Q000000981:diagnostic imaging*; D009970:Orthodontics / Q000379:methods*; D011862:Radiography, Panoramic / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055815:Young Adult