PROBLEM TO BE SOLVED To provide a dental mirror which reduces unnotched teeth polishing residue.SOLUTION: In the dental mirror used in the oral cavity, by attaching the LED 1 to the side of the mirror 2, light can be irradiated from the back side of the tooth, and since the tooth can be seen through the tooth and the dental plaque or the colored stain appears to float, it is necessary to polish it cleanly You can do.BACKGROUND OF THE INVENTION【課題】目視できない歯の磨き残しを軽減するデンタルミラーを提供する。【解決手段】口腔内に用いるデンタルミラーにおいて、鏡2の横にLED1を付けることで、歯の裏側から光を照射でき、歯が透けて歯垢や着色汚れが浮いて見えるので綺麗に磨くことができる。【選択図】図1