| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-mirror type tooth mirror allowing a person to observe the state of the teeth in his own oral cavity with one hand by using one apparatus. SOLUTION: A fixed mirror A2 to be inserted into an oral cavity is disposed at one side end section of a thin shaft type arm 1, a mirror B3 for observing the reflected image from the mirror A2 by oneself is disposed at the other side end section of the arm 1, a universal joint 4 is used at the connection section of the mirror B3 and arm 1, and the observation of the oral cavity is facilitated by making the mirror B3 rotatable at a variable angle.
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