When there are few missing teeth (1 or 2 natural teeth) and the adjacent teeth are intact and healthy, and the patient is unwilling or unable to undergo implant restoration, cemented fixed prosthesis is an option in addition to traditional fixed bridges. With the advent of acid etching, the strength of the bond between resin and enamel was increased, which created the conditions for minimally invasive restorative dentistry that reduces the abrasion of dental tissue while ensuring the retention of the restoration. Bonded bridges are fixed to the abutment teeth by bonding, and have the greatest advantage over traditional fixed bridges in that there is little or no abrasion of the healthy teeth. Bonded bridges have metal bonded fixed bridge, fiber-reinforced composite resin bonded bridge and all-ceramic bonded bridge three types. 1, metal wing plate bonded bridge with cast metal as a bracket, metal wing plate as a retainer, the use of porcelain fused to metal (or baked plastic) restoration of missing teeth bonded bridge. Studies have shown that metal wing plate bonded bridges have a low success rate of long-term bonding, especially in the posterior region, which is characterized by loosening or loss. In addition, the metal color has a certain impact on the aesthetics (especially in the anterior region). 2, fiber-reinforced composite resin bonded bridge is a bonded restorative technique that uses a fiber-reinforced composite to create a reinforcing bracket and a composite resin to establish the shape of the restoration. Depending on the retention method, it can be designed as pterygoid plate retention (anterior abutment), inlay retention (posterior abutment or anterior abutment with filling) and pterygoid plate – inlay hybrid retention (missing cuspids). Compared to metal pterygoid bonded bridges, fiber-reinforced composite resin bonded bridges are slightly less strong, but they have a high success rate in bonding to natural teeth. Due to the use of two aesthetic materials, glass fiber brackets and composite resin, it is a metal-free restoration with good aesthetic results. In addition, the production of simple and easy intraoral repair, when needed, can also be removed for other restorative methods. 3, all-ceramic bonded bridge With ceramic materials to improve the strength and toughness, all-ceramic bonded bridge has become a new technology used in clinical applications. Compared with the metal wing plate bonded bridge and fiber-reinforced composite resin bonded bridge, all-porcelain bonded bridge has great advantages in terms of biocompatibility and aesthetic effects, with the best prospects for development.