| 摘要 |
Protective device for dental use comprising a closed envelope (1) made of a transparent or semitransparent material, provided with at least two holes (2, 3) in substantially opposite positions wherein a tooth to be operated (4) and a dental instrument (7) respectively can be inserted, as well as with a rigid or semirigid perimetrical structure, which divides the envelope (1) into two portions, each one comprising one of said holes (2, 3). |
