翻訳と辞書 Words near each other ・ Perikles (name) ・ Perikles Ioannidis ・ Perikles Kakousis ・ Periklis Argyropoulos (admiral) ・ Periklis Bousinakis ・ Periklis Dimoulis ・ Periklis Dorkofikis ・ Periklis Hristoforidis ・ Periklis Iakovakis ・ Periklis Ilias ・ Periklis Korovesis ・ Periklis Panagopoulos ・ Periklis Papapostolou ・ Periklis Pierrakos-Mavromichalis ・ Perikoala ・ Perikyma ・ Peril (band) ・ Peril (disambiguation) ・ Peril and the Patient ・ Peril at End House ・ Peril at End House (play) ・ Peril Formation ・ Peril Peak ・ Peril Strait ・ Peril's Gate ・ Perila ・ Perilampidae ・ Perilampsis ・ Perilampsis amazuluana ・ Perilampsis atra 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 Perikyma ： ウィキペディア英語版 Perikyma Microscopically, perikymata (Greek plural of perikyma) are the pits around the long prisms of tooth enamel. They indicate the places where enamel-producing cells used to make contact with neighboring cells and are the result of normal enamel apposition. Grossly, perikymata are incremental growth lines that appear on the surface of enamel as a series of grooves. Each perikyma is thought to take approx. 8–10 days to form and thus the count of perikymata may be used to assess how long a tooth crown took to form. They may disappear as the enamel wears over a period of time. They are thought to indicate the termination of striae of Retzius at the surface of enamel. They can be found on all teeth,but are usually the easiest to notice on canines. 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「Perikyma」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.