Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
3 years ago

Condylar degeneration and condylar position in open bite patients: A cone-beam computed tomography (CBCT) study

Condylar degeneration and condylar position in open bite patients: A cone-beam computed tomography (CBCT) study
Linda Phi, Brad Albertson, David Hatcher, Shikha Rathi, Joorok Park, Heesoo Oh
The purpose of this study was to investigate the prevalence of condylar degeneration in anterior open bite (AOB) patients. Cone beam computed tomography (CBCT) scans of 194 AOB patients (108 with skeletal open bite and 86 with dental open bite) and 100 control patients were included in this retrospective study. Two oral and maxillofacial radiologists categorized each of the 588 condyles as normal, degenerative-active, or degenerative-repair. Chi-square analysis with Bonferroni adjustment was used to evaluate the relationship of condylar status (normal vs. degenerative) to anterior open bites. Of the 103 degenerative condyles, there were 59 in the skeletal open bite group, 14 in the dental open bite group, and 30 in the control group. Condylar degeneration occurred twice as frequently in skeletal open bite patients as in the controls (P<.0001). Conversely, a greater frequency of normal condyles was found in the dental open bite group (P=.0002). The skeletal open bite group also showed a significantly higher frequency of bilateral degenerative condyles (P=.0001). The frequency of condylar degeneration did not differ significantly between females and males. Degenerative condylar change was significantly more likely in skeletal open bite patients, but less likely associated with dental open bites.

Publisher URL: https://www.oooojournal.net/article/S2212-4403(21)00549-6/fulltext

DOI: 10.1016/j.oooo.2021.07.019

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