PROBLEM TO BE SOLVED: To predict the period for a permanent tooth to erupt with high accuracy.SOLUTION: A device for predicting the eruption period of the permanent tooth includes: a first acquisition section 101 which acquires subject information including at least information showing a geometrical shape related to a permanent tooth of a subject, from an image of the inside of an oral cavity of a first subject a determining section 103 which determines the similarity between the subject information of the first subject acquired by the first acquisition section 101 and subject information of a second subject, by referring to a database 102 which stores two or more data sets including the subject information of the second subject different from the first subject and eruption period information showing the eruption period which is a period for a second subjects permanent tooth to erupt and a prediction section 104 which acquires the eruption period information contained in the database 102 based on the determination result by the determining section 103, and predicts the eruption period of the first subjects permanent tooth based on the acquired eruption period information.COPYRIGHT: (C)2012,JPO&INPIT【課題】永久歯が萌出するまでの期間を高精度で予測する。【解決手段】第一被験者の口腔内を撮影した画像から、被験者の永久歯に関する幾何学的形状を示す情報を少なくとも含む被験者情報を取得する第1取得部101と、第一被験者とは異なる第二被験者の被験者情報と第二被験者の永久歯が萌出するまでの期間である萌出期間を示す萌出期間情報とを含むデータセットを複数記憶しているデータベース102を参照することにより、第1取得部101が取得した第一被験者の被験者情報と第二被験者の被験者情報との類似性を判断する判断部103と、判断部103による判断結果に基づいてデータベース102に含まれる萌出期間情報を取得し、取得した萌出期間情報に基づいて、第一被験者の永久歯の萌出期間を予測する予測部104とを備える。【選択図】図3
