Whether or not a small piece of the edge of the filled tooth can still be filled depends on the location of the fall, located in the marginal ridge area if the impact is not too big can not be filled, in general, can be filled. A small piece of the edge of the filled tooth needs to be examined in the hospital, whether it is their own dental tissue defects or part of the filling material loss, if it is their own material due to the material loss caused by the lack of fit, you can remove the filling and then re-fill. If the defect is located in the maxillofacial area and the filling is tightly bonded, the filling can be partially abraded and re-bonded. However, if the filling is tightly bonded and the defect is located on the marginal ridge of the tooth, the direct bonding of the adhesive material may be unstable, so instead of filling, the edge of the tooth can be polished directly with an instrument.