The purpose of drilling (grinding) teeth when filling teeth is to clean the hard tissue of teeth corroded by dental caries, eliminate bacterial infection, prevent the development of lesions and prevent secondary caries. So as to make the filling material fit or combine with the cavity wall of normal tooth tissue. Dental fillings need to be prepared into a certain cavity shape, that is, retention form shape and resistance shape. The cavity shape with firm fillings that will not loosen and fall off is called retainer. The cavity shape that can make the filling material and teeth bear chewing force is called resistance shape. Resistance shape is needed in the cavity shape of abutment surface, and retention form is needed in each cavity. It's like a carpenter making furniture, making a tenon with a specific shape, so that multiple pieces of wood are closely connected. At the same time, when grinding teeth, you should cherish the tooth tissue, and you should not remove too much. You should also pay attention to protecting the pulp, stopping grinding and spraying water to cool down to prevent excessive heat production. However, with the development of medicine, some foreign countries have applied a new technique of filling teeth without drilling molars, which is called "Caridex caries resection". Filling teeth without drilling can reduce the psychological and spiritual burden of patients. It is expected that the new technology of filling teeth may bring good news to patients with toothache in the near future.

Aiyashi dentistry