翻訳と辞書 Words near each other ・ Enavallen ・ Enavatuzumab ・ Enawene Nawe language ・ Enawene Nawe people ・ Enayat ・ Enamel cord ・ Enamel hypocalcification ・ Enamel hypoplasia ・ Enamel infraction ・ Enamel knot ・ Enamel lamellae ・ Enamel matrix derivative ・ Enamel niche ・ Enamel organ ・ Enamel paint ・ Enamel pearl ・ Enamel rod ・ Enamel sign ・ Enamel spindles ・ Enamel tufts ・ Enamell Records ・ Enameloid ・ ENAMI ・ Enamidase ・ Enamine ・ Enamine Ltd ・ Enammocephalus ・ Enamo Aedho ・ Enamorada ・ Enamorada (1986 telenovela) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Enamel pearl ： ウィキペディア英語版 Enamel pearl An enamel pearl is a condition of teeth where enamel is found on locations where enamel is not supposed to be, such as on a root surface. They are found usually in the area between roots, which is called a furcation, of molars. Enamel pearls are not common in teeth with a single root. The most common location of enamel pearl is the furcation areas of the maxillary and mandibular third molar roots. The Enamel pearls are formed essentially from the Hertwig's Epithelial root sheath. After the initiation of the formation of dentin in the root area of the tooth, the root sheath disintegrates and moves away from the root surface so that the cells of the dental sac can come in contact of predentin to differentiate into cementoblasts and start deposition of cementum. However, if the cells of epithelial root sheath remain adherent to predentin, they may differentiate into fully functional ameloblasts and deposit Enamel. Such droplets of enamel are called Enamel Pearls. ==References== *Kahn, Michael A. Basic Oral and Maxillofacial Pathology. Volume 1. 2001. *Steinbacher D.M., Sierakowski S.R., First Aid for the NBDE Part 1 2nd Ed. p. 625, McGraw Hill, 2011 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Enamel pearl」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.