Terms for subject Dentistry containing index

English	Chinese
Control the floss by pinching it with index fingers and thumbs like this	通过示指和拇指的牵拉来控制牙线
Please hold the X-ray film with your index finger	请用您的示指抵住胶片
The length of the bristles row on the head of the toothbrush should be as long as the width of the index and middle fingers together	牙刷头的长度应是示指和中指宽度之和