Can tooth decay infect other teeth?

Dental caries is a chronic, progressive, destructive disease of tooth hard tissue caused by bacterial infection, so dental caries is an infectious disease, not an infectious disease. Dental caries If the tooth is not filled early in the decay, that is, the tooth is not drilled to remove the decayed tissue and then stop the further development of caries, then the tooth will further cause inflammation of the dental nerve, showing symptoms of pulpitis, or apicitis. After pulp tissue suppuration necrosis, it will cause alveolar bone destruction in the apical area. The teeth are attached to the alveolar bone, so the inflammation in the apical area will pass through the alveolar bone and cause damage to the adjacent teeth. Therefore, if tooth decay is not treated in time, it will also cause apical inflammation of the adjacent teeth.