Root canal treatment biting soreness without biting is fine may be due to the filling is too high, apical inflammation, the drug leaked out of the apical foramen, or the tooth partially split, etc. It is recommended to specifically go to the hospital for examination and treatment. 1. Root canal treatment surface filling has a high point, in the bite will directly bite the affected tooth first, there may be pain. 2. The tooth originally has apical inflammation, the inflammation has not completely subsided during the root canal treatment, so there is still pain when biting, and the bite can generally be lowered. 3. During root canal treatment, the medication leaks out of the apical foramen, and the medication will stimulate the apical tissues to produce compression pain when biting. 4. Teeth after root canal treatment did not do the restoration in time, may cause hidden cracks in the tooth, may be biting soreness, not bite is fine.