The Prevalence of Maxillary and Mandibular Exostosis in the Mississippi Population: A Retrospective Study

Purpose: The objective of this study was to determine the prevalence of exostosis in the Mississippi population. Methods: The patient archives of the UMMC School of Dentistry between January 2018 and May 2021 were examined. Patients with exostosis were included in the study based on the findings from intraoral photographs, full-moth series (FMS), panoramic radiographs, and cone-beam computerized tomography (CBCT) images of the patients. Patients were excluded from the study if they did not have maxillary or mandibular exostosis. In addition, each patient’s age, gender, and ethnic origins, such as Caucasian, African-American, or Asian, were recorded. All data regarding exostosis were evaluated and categorized according to age, gender, and ethnicity. Multiple logistic regression analysis was performed for more detailed statistical analysis. Results: A total of 1242 patients were examined for the presence of maxillary and mandibular tori. In total, 303 patients were diagnosed with maxillary and/or mandibular tori among the Mississippi population, with a prevalence rate of 24.4%. Exostosis was seen more in females (57.4%) compared to males (42.6%). The highest prevalence of exostosis was seen in Caucasians (71.3%), followed by African-Americans (23.8%) and Asians (5%). Conclusions: High prevalence of exostosis was seen in the Mississippi population. Our findings will help clinicians to be more aware of these bony protuberances and, thus, better at diagnosing them. This may specifically help oral surgeons, periodontists, and prosthodontists in pre-prosthodontic surgery and denture fabrication.