Evaluation of associations between condylar morphology, ramus height, and mandibular plane angle in various vertical skeletal patterns: a digital radiographic study

Abstract

Background To evaluate condylar morphology, ramus height, and asymmetry indexes in patients with different vertical skeletal patterns and to determine the association between condylar and ramal measurements with the mandibular plane angle. Methods Dental panoramic radiographs of 60 patients with different skeletal patterns were evaluated. According to the cranial base (Sella-Nasion)-mandibular plane (SN-MP) angle, the patients were divided into three groups: normal angle (NA), low angle (LA), and high angle (HA). The condylar area, condylar perimeter, condylar heights, and ramus height were measured, and the asymmetry index value of each measurement was calculated. A one-way analysis of variance as well as a post hoc Tukey and Kruskall-Wallis tests were used to determine intergroup differences. Pearson’s correlation coefficient was used to determine the relationship between all measurements and SN-MP. Results The intergroup comparison of condylar area, condylar perimeter, condylar heights, and ramus height measurements showed that the patients in the LA group have statistically significantly greater values compared to those in the HA group. A statistically significant difference was detected between the NA and LA groups only in the condylar area measurements. There was no statistical difference only in the ramus height measurements between the NA and HA groups. Asymmetry index values of the groups were similar. The negative correlations were found between all measurements and the SN-MP angle. Conclusion HA individuals have lower ramus heights and smaller condylar morphologies than NA and LA individuals. In addition, as the SN-MP angle increases, the condyle dimensions and ramus height decrease, and this is a clinically important finding.

Assessment of mandibular asymmetry in different skeletal malocclusions and vertical patterns in adult individuals: A cone-beam computed tomography study

“…Other studies, however, have reported no significant difference between the right and left sides of the same individual. [ 16 33 ] In regards to Cvol, the current study reported significant differences in Cvol between the right and left sides, a finding that concurs with the results of a study by Shetty et al . [ 34 ] On the other hand, other studies have reported different findings.…”

Ketinggian kondilus, kebiasaan mengunyah dan gejala temporomandibular disorder pada pasien bergigi lengkap pada berbagai kelompok usia: studi observasional

“…15 Namun, radiografi panoramik memiliki keuntungan seperti dapat digunakan secara rutin dalam pemeriksaan gigi, biaya rendah, dan memaparkan dosis radiasi yang relatif rendah pada pasien dibandingkan cone-beam computed tomography (CBCT) yang dianggap sebagai standar untuk pemeriksaan kraniofasial. 25 Terdapat limitasi lainnya pada penelitian ini, yaitu perbandingan jumlah sampel yang relatif tidak setara dan saat menentukan gejala TMD hanya menggunakan kuesioner indeks TMD-DI tanpa dilakukan pemeriksaan klinis. Perlu dilakukan penelitian lebih lanjut untuk mengetahui hubungan asimetri kondilus yang terjadi pada pasien bergigi lengkap dengan berbagai faktor penyebabnya.…”