| 摘要 |
The present invention relates to a lip retractor for oro-dental operation, comprising: a frame (10) provided with a central opening (14) that allows access to the teeth of a patient; at least two hooks (40) for supporting the lips and cheeks of the patient; and means (50) for adjusting the position of the hooks (40) with respect to the frame (10), including non-return elements (64; 74; 94, 95; 109). The invention also relates to a dental treatment assembly comprising such a retractor (1), and also to a method for using such a retractor (1). |
