Effects of sleep bruxism on functional and occlusal parameters: a prospective controlled investigation

Abstract

People who grind their teeth in sleep do not necessarily have unusual dental physiology, research from Germany shows. Michelle Ommerborn and co-workers at Heinrich-Heine University, Düsseldorf, in collaboration with an orthodontic dental practice in Langenfeld, Germany, have completed a study involving 58 patients with known sleep bruxism (grinding), and 31 control patients with no grinding symptoms. Following up on a previous pilot study, the team focused on 16 different aspects of dental physiology, from overbite of canines to the maximum left and right movement of the mandible. The team discovered that teeth grinders have a more pronounced slide from first contact of teeth on biting (centric occlusion) to full closure of all teeth (maximum intercuspation). However, none of the other parameters were found to be statistically significant, contradicting the earlier pilot study.

Keywords

dental occlusion / functional parameters / prospective study / sleep bruxism

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