Brief introduction of semi-fixed bridge

Fixed bridge is a bridge-like prosthesis with teeth at both ends as fixed support bridge base and missing middle teeth. Fixed bridge means that people who wear teeth can't take off and put on false teeth at will. The abutment of fixed bridge is the key, because it is the support of denture. When the denture bears pressure, it should be borne by the abutment. If the abutment can't bear the chewing pressure of denture, it will be painful, swollen and loose, so it is necessary to pull out the abutment. Therefore, whether the bridge can be fixed depends mainly on the condition and supporting capacity of the abutment. Abutment must be free from inflammation, loose roots and healthy periodontal ligament and alveolar bone. The connection between abutment and denture is realized by the retention device fixed on abutment, which is called retainer. The commonly used retainers are crown restorations. Such as full crown, open crown, 3/4 crown, post crown inlay bonding device, etc.