What is the role of pulpal perforation after root canal treatment?

Root canal treatment involves making a hole in the surface of the tooth, known as an open pulp hole, which serves primarily to drain and create a linear pathway.
Root canal treatment consists of three major steps: root canal preparation, root canal disinfection and root canal filling, among which the first step of root canal preparation is to make a hole on the tooth surface, which has two main functions.
1. Drainage: For patients with acute pulpitis, the pulp is in an inflamed state, with a lot of exudation in the pulp cavity and a lot of internal pressure, which manifests itself in obvious spontaneous pain and hot and cold pain, so it is necessary to make a hole in the surface of the tooth to release the internal pressure.
2. Establishment of a straight line access: Root canal treatment requires the removal of infected pulp and dentin wall, so it is necessary to make a hole in a fixed position on the tooth surface to facilitate the access of instruments to help remove the infected pulp and necrotic tissue.
It is important to note that the prepared cavity is filled completely during root canal filling. In addition, the root canal system is complex and sometimes difficult to treat, so it is recommended to go to a regular hospital dentist.