PROBLEM TO BE SOLVED: To perform surely said person authentication of a deceased person, or person who cannot understand who the person is, due to dementia or brain disorder.SOLUTION: A recess part 19 is formed on a rear face side of a porcelain laminate plate 18 attached to a recess part 11 on a part of a front face side of a front tooth 10, an IC chip 20 is stored in the recess part 19 and the chip is fixed with a resin and embedded. If information required for said person authentication is written in the IC chip 20 in advance, a reader/writer 24 can read the written content, thereby said person authentication can be easily and surely performed by the read information.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】亡くなった人の身元や、痴呆症、脳障害などによって自分が誰であるか分らなくなった人の本人認証を確実に行なう。【解決手段】前歯10の前面側の部分の凹部11に装着されるポーセレンラミネートプレート18の裏面側に凹部19を形成しておき、この凹部19にICチップ20を入れて樹脂で固定して埋設する。予めICチップ20に本人認証に必要な情報を書込んでおくと、リーダ/ライタ24によってその内容を読出すことができ、これによって本人認証が容易かつ確実に行なわれる。【選択図】図2