Evaluation of antral exostoses in a Korean population

Cho,  Bong-Hae; Jung,  Yun-Hoa

doi:2017.55.3.208

J Korean Dent Assoc > Volume 55(3); 2017 > Article

The Journal of The Korean Dental Association 2017;55(3):208-214.
DOI: https://doi.org/10.22974/jkda.2017.55.3.001 Published online March 31, 2017.

한국인의 상악동 외골증 평가

조봉혜¹, 정연화²

^¹부산대학교 치의학전문대학원 영상치의학교실
^²부산대학교 치의학전문대학원 영상치의학교실

Evaluation of antral exostoses in a Korean population

Bong-Hae Cho¹, Yun-Hoa Jung²

¹Department of Imaging dentistry, School of Dentistry, Pusan National University
²Department of Imaging dentistry, School of Dentistry, Pusan National University

Abstract

Purpose
This study was performed to survey the incidence and imaging characteristics of the antral exostoses in a Korean population. Materials and methods: The cone-beam computed tomographic images of 5,268 patients were reviewed for the presence of antral exostoses. Incidence, location, shape, structure and dimension were evaluated. Gender and side difference were analyzed by chi-squared test. Results: Ninety eight antral exostoses were found in 78 (1.5%) out of 5,268 patients. Gender and sides showed no statistically significant differences. Antral exostoses was often found in the lateral wall and floor of the maxillary sinus, accounting for 58.2% and 38.8% of the exostoses, respectively. Most exostoses had broad base and were composed of spongy bone surrounded by compact bone. The mean dimension was 9.1(W)*4.9(D)*5.3(H) mm. Conclusion: Antral exostoses is not uncommon in a Korean population. The identification of antral exostoses is clinically significant to avoid unnecessary examination and treatment. It also needs to be examined carefully in the implant planning or sinus lift procedure.

Key Words: Maxilla;exostoses;cone-beam computed tomography;