What happened when a piece of the tooth wall fell out after a filling

Losing a piece of the wall of the tooth after filling may be caused by the chipping phenomenon due to excessive force on the tooth.
1. In general, the decayed tooth tissue will become weak compared to the normal tooth, when the patient after filling accidentally touches something hard while eating, it may lead to excessive force on the tooth, which will lead to chipping of the tooth wall.
2. If the chipping of the tooth is only enamel chipping, without any allergic symptoms, and not too big, does not affect the material of the previous filling, generally do not need to do special treatment. However, if the chipping is on the side of the filling material, easy to cause secondary caries can be refilled, this situation needs to go to the hospital in a timely manner to repair, so as not to continue to fall off.
Therefore, if the patient appears to have a piece of the wall of the tooth fall off after filling, should go to the hospital in time, and under the guidance of professional doctors for treatment.