Also called false teeth. Refers to a repair device used to repair defects or deficiencies in dentition and related tissues, in order to restore their shape and function. It can be divided into the following four categories according to the mode of support: ① tooth supported demure, the bite force is mainly borne by natural teeth; ② Mucosa supported demure, the occlusal force is borne by the mucosa and its underlying tissue; ③ Mixed support, bite force shared by natural teeth and mucosa; ④ implant supported, the bite force is mainly borne by the artificial tooth implant. According to the position, it can be divided into fixed and removable parts, while the latter can be further divided into removable parts and whole mouth. In addition, there are some special types, such as immediate, covering, and planting. There are several commonly used types in clinical practice: ① fixation, which uses natural teeth or roots at both ends or one end of the missing tooth space as a bridge base, and a retainer made on it to connect artificial teeth; ② Removable parts, supported by remaining teeth in the mouth or dental implants or mucous membranes and their underlying tissues, are fixed in the oral cavity through an apposition (such as a clasp) and a base. It is also known as the active part because it can be freely removed and worn by the patient; ③ A kind of prosthesis that can reconstruct dentition to restore oral function after all teeth of the whole mouth, single jaw or double jaw are missing. It is divided into two types: single jaw and double jaw full mouth, belonging to mucosal support type; ④ Immediate, a type of treatment that is done in advance before the patient's tooth is extracted, and immediately after the tooth is extracted. Temporarily; ⑤ Covering, with good retention, support, and chewing functions, suitable for adults; ⑥ Implantation: the artificial tooth implant is surgically implanted into the oral tissue, and then made on the pillar or abutment of the implant protruding from the alveolar mucosa. The jaw force is directly transmitted to the bone through the implant, which has good support, retention and stability.
Biomedical materials -> Dental materials