Teeth cleaning without anesthesia also has certain risks. In fact, a small number of pet hospitals now provide teeth cleaning services without anesthesia. After the dog is fixed on the operating table, the teeth are removed and cleaned manually using a scaler or tweezers. Apart from the lower price, anesthesia-free teeth cleaning has basically no other advantages: First, dogs may resist violently during the teeth cleaning process, so tooth fracture accidents caused by anesthesia-free teeth cleaning are very common and serious. Sometimes a fracture of the upper jaw may even occur; secondly, tooth cleaning without anesthesia can only target minor dental calculus, such as internal gums or periodontal pockets, which cannot be cleaned and treated.