PROBLEM TO BE SOLVED: To measure the whole lip closing power by simple operation, measure a difference of left and right lip opening/closing power and find the occurrence of hypoplasia, atrophy or cauterization in a weak side of the left and right lip opening/closing power, and thereby promote treatment early.SOLUTION: A lip opening/closing power measuring device 1 for measuring lip opening/closing power has: an enclosure 10； a lip base part 22a and a lip base part 22b projecting from the enclosure 10, and pressed from above and below by an upper lip and a lower lip； and a control part 101 for measuring the pressing force when the lip base part 22a and the lip base part 22b are pressed by the left side of the lip, and the pressing force when the lip base part 22a and the lip base part 22b are pressed by the right side of the lip.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】簡単な操作で口唇閉鎖力全体を測定し、左右の口唇開閉力の差を測定すると共に、左右の口唇開閉力の弱い方に発育不全、萎縮又は麻痺等を生じていることを見つけて、早期に治療を促すこと。【解決手段】口唇の開閉力を測定する口唇開閉力測定装置１は、筐体１０と、筐体１０から突出すると共に上口唇と下口唇とによって上下から押圧される口唇台座部２２ａ及び口唇台座部２２ｂと、口唇台座部２２ａ及び口唇台座部２２ｂが口唇の左側によって押圧された際の押圧力と、口唇台座部２２ａ及び口唇台座部２２ｂが口唇の右側によって押圧された際の押圧力と、を測定する制御部１０１と、を有する。【選択図】図２
