A Novel Technique for Orthodontic Gap Closure with Access through the Maxillary Sinus

Abstract

Kilic, et al. [1] showed that the distance between the sinus floor and the root tip was greatest for first premolars and shortest for the buccodistal roots of second molars on both the right and the left sides. Since molar roots are located close to the maxilla, the remaining bone height as well as the osseous elongation of the sinus will affect the available options for tooth movement. Sharan and Madjar [2] reported that the extraction of second molars led to greater expansion than did the extraction of first molars. They also reported that extractions of two or more adjacent posterior teeth caused greater sinus expansion.