Whether it is for caries or for pulpitis, tooth drilling destroys the overall structure of the tooth and can have an impact on the overall stress of the tooth. However, it is important to emphasize that drilling is only necessary if there is a disease, and that drilling is not necessary if there is nothing wrong with a healthy tooth. Once caries is detected, if it is not cleaned up by drilling, the caries will only progress deeper and deeper to cause pulpitis, which will lead to caries in the entire crown. And if pulpitis is not drilled to open up the pulp and release the inflammation within the pulp, the pulpitis will further develop into periapical inflammation, potentially causing osteomyelitis of the jaws and multiple facial infections. So tooth drilling is the treatment, although it damages the tooth, but without drilling there is a possibility of more harm.