PROBLEM TO BE SOLVED: To provide a denture which has a misplacing alarm function and can be found easily even when the denture is removed and left at home or in the destination of a visit.SOLUTION: A denture 1 has: a masticatory force electric power conversion part 11 a power storage part 12 a detection part 14 detecting the condition of the oral cavity a determination part 131 which detects whether the denture exists out of the oral cavity based on the output signals of the detection part 14 a clock part 132 which outputs an alarm instruction signal when the time while the denture is outside of the oral cavity exceeds a prescribed time according to the determination result of the determination part 131 and an alarm part 16 outputting an alarm sound according to the alarm instruction signal. At lest one from a temperature sensor, a humidity sensor and a contact sensor is used as a sensor of the detection part 14.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】家庭内や外出先で義歯を取り外して置き忘れた際にも、発見が容易な置き忘れ警報機能を有する義歯を提供する。【解決手段】義歯1は、咀嚼力電力変換部11、蓄電部12と、口腔内の状態を検出する検出部14と、検出部14の出力信号に基づいて義歯が口腔外にあることを判定する判定部131と、判定部131の判定結果に基づいて義歯が口腔外にある時間が所定時間を超えた際に警報指示信号を出力する計時部132と、該警報指示信号によって警報音を出力する警報部16とを有している。検出部14のセンサとしては、温度センサ、湿度センサ、または、接触センサの少なくとも一つが用いられる。【選択図】図2
