PROBLEM TO BE SOLVED: To provide a mirror with a handle, for which an oral inspection mirror used in dentistry for example is made to have a variable magnification/reduction function, with hygienic problems solved at the same time.SOLUTION: The handle part and the mirror part are made detachable, and the mirror part made of resin and vulnerable to heat is made disposable, with only the metallic handle part disinfected by an autoclave. Then, by incorporating a cylinder and a piston in the handle part, the disposable mirror part can be made small, simple and inexpensive.SELECTED DRAWING: Figure 1【課題】歯科などで使用する口腔内観察用鏡に可変の拡大・縮小機能を持たせ、衛生上の問題も解決する柄付き鏡の提供。【解決手段】柄の部分と鏡部を着脱可能とし、樹脂製で熱に弱い鏡部は使い捨てとし金属製の柄の部分のみオートクレーブ消毒する。そして柄の部分にシリンダーとピストンを内蔵することで、使い捨て鏡部は小型かつシンプルで安価なものにすることが出来る。【選択図】図1