If the cavity is deep and almost half rotten, it can be filled directly without pulp exposure; if the pulp is already exposed, root canal treatment is needed, and if it is already penetrated at the bottom, extraction should be considered.
1. No pulp exposed: the cavity is asymptomatic, the decayed material in the cavity is removed cleanly, there is no pulp exposed, and the tooth can be directly filled with resin or inlay.
2. Root canal treatment: after removing the decayed material, the pulp has been leaked, and it is necessary to carry out root canal treatment first, and then carry out filling, after root canal treatment, the brittleness of the tooth increases and it is easy to split, and the cavity is too big, and the filling material is easy to fall off, so it is recommended to carry out fiber post and core reinforcement, and then repair the all-ceramic crown.
3. Extraction: If the carious part of the tooth is too much under the gum, the remaining tooth tissue is too weak or there is perforation at the bottom of the pulp, it is not possible to fill the tooth, and it needs to be extracted to replace the tooth.
If the carious cavity is very deep and almost half rotten, you need to consult a doctor for examination and treatment under the guidance of the doctor to avoid delaying the condition.