アブストラクト（26巻1号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Dental Asymmetry in Facial Asymmetry
Subtitle　： ORIGINAL ARTICLES
Authors　： Kenji Fushima, Yasuhiko Odaira, Nobuo Saito, Fumiko Tsurumi, Sadao Sato
Authors（kana）　：
Organization　： Department of Orthodontics, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 26
Number　： 1
Page　： 15-21
Year/Month　： 1998 / 3
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] Dental asymmetries were examined in 25 malocclusion cases with a facial asymmetry due to mandibular lateral displacement. The landmark points of cusp tip and fossa in each upper and lower tooth were digitized three-dimensionally on an articulator. The cant of the frontal and sagittal occlusal plane, the inclination of the lateral teeth and the arch width of the lateral teeth were measured and compared between the displaced side of the mandible and the opposite side. The frontal occlusal plane connecting the bilateral canines, second premolars, first molars and second molars ascended toward the displaced side of the mandible. The lateral teeth on the opposite side of the mandibular displacement in the upper arch was inclined lingually accompanied with a smaller arch width than that on the displaced side. The lateral teeth on the displaced side in the lower arch inclined more lingually than that on the opposite side, when assessed against a horizontal plane and also against a frontal occlusal plane. For the sagittal occlusal plane, the posterior occlusal plane connecting the cusp tip of the second premolar and the second molar on the displaced side of the mandible was significantly steeper than that on the opposite side. It was considered that prevention and correction of dental asymmetries are important to lead a facial symmetry and/or a balanced oral function, especially in a growing individual.
Practice　： Dentistry
Keywords　： Dental asymmetry, Facial asymmetry, Mandibular lateral displacement