| 摘要 |
PROBLEM TO BE SOLVED: To provide a lip pressing piece for odontotherapy pushing open nearly the whole of an upper jaw or a lower jaw, sufficiently exposing a front teeth section, and capable of protecting a face section. SOLUTION: This lip pressing piece 1 having a cover section 5 spread into a fan shape from an insertion section 2 to the outside of a mouth cavity is formed with a plate made of a material such as a metal or a plastic and having the size insertable into the vestibule of the mouth cavity. A curved edge 3 is formed on the bottom side of the insertion section 2, and it can be arranged along the tooth socket section gum. Insertion support sections 4a, 4b insertable between the gum and cheek are arranged at both the right and left ends of the curve section. A recessed groove 7 is formed at the slightly upper section of the curved edge 3 along it, and hold sections for holding the whole with fingers are arranged at both the right and left ends of the cover section 5. |
