近年来,由于牙科水平位诊疗和较重的铸造冠、嵌体等的普及,误吞和误吸的事故时有发生。作者以使补缀物可落入镜中,防止误吞为目的研制了牙科安全口镜。结构:口镜分为三个部分组成。即镜柄同一般口镜柄。镜面由轻量防锈18.8不锈钢镜(直径3cm～4cm)制成。镜周围由防锈不锈钢网圈环绕镜面(圈高约为 In recent years, due to dental level diagnosis and treatment of heavier casting crown, inlays, etc., the accidental swallowing and aspiration accidents have occurred. The author made the patch can fall into the mirror, the purpose of preventing swallowing was developed dental safety port mirror. Structure: Ophthalmic mirror is divided into three parts. Namely handle the same mirror handle. Mirror made of lightweight rust-proof 18.8 stainless steel mirror (diameter 3cm ~ 4cm). Mirror surrounded by stainless steel mesh ring around the mirror (circle height of about