Chen HH, Yi CA, Chen YC, et al. - Researchers conducted the study for analyzing the anatomy of antroliths and its impact on the thickness of the maxillary sinus membrane. Cone-beam computed tomography (CBCT) was conducted on 239 patients (478 sinuses). Data reported that the prevalence of antroliths per sinus was 8.4%. The connections between the antroliths and the sinus membrane showed that sinus membranes tended to encircle antroliths, resulting in a gradual increase in membrane thickness. In the presence of antrolith(s), the sinus membrane was found to be significantly thicker. Antroliths that are sufficiently large or located adjacent to the sinus floor or lateral wall increase the risk during sinus augmentation procedures of sinus membrane perforation. Therefore, to reduce the risk of complications prior to sinus augmentation procedures, a comprehensive CBCT assessment is required.