アブストラクト（35巻2号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： New Morphometric Method of Dental and Alveolar Basal Arch
Subtitle　： ORIGINAL ARTICLES
Authors　： Masanori Yasui1), Masaru Kobayashi2), Hiroaki Konishi2), Kenji Fushima3)
Authors（kana）　：
Organization　： 1)Miyazakidai Yasui Orthodontic Clinic, 2)Department of Oral and Maxillofacial Surgery, Kanagawa Dental College, 3)Kanazawa Orthodontic Clinic
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 35
Number　： 2
Page　： 151-157
Year/Month　： 2007 / 9
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract]The purpose of this study was to develop a new curve-fitting method for quantifying both dental and alveolar basal arches and to determine whether particular morphological correlations could exist between these two. Forth-order polynomials were used to represent these arches in 50 adult Japanese volunteers (35 males and 15 females) with a normal occlusion. The best fitted curves with rotation provided an accurate description of arch morphology with the quadratic (second-order) and quartic (forth-order) terms reflecting arch form and the rotational angles (Euler's angles) summarizing positional relations to an intracranial reference. However, the values of correlations between the polynomial coefficients indicated that there was little similarity between the dental and alveolar basal arch forms or the maxillary and mandibular arch forms. These results suggest that this new curve-fitting method may be useful for quantifying morphology and location of the dental arch, but that the dental arch form cannot be predicted directly from the alveolar basal arch form.
Practice　： Dentistry
Keywords　： Dental arch, Alveolar basal arch, Polynomial curve