关键词: [关键词] CAD/CAM, 瓷贴面, 微创美容牙科

Abstract: 0008) [Abstract] Objective: To investigate the short-term clinical application of CAD/CAM porcelain veneer for anterior teeth. Methods: 52 cases of anterior teeth esthetic restorations in 12 patients, including anterior teeth scattered in space, incisor defect, dental fluorosis and mild to moderate tetracycline teeth. After teeth preparation by the same doctor, all patients used 3-shape scanner to obtain optical impression, CAD (3Shape software) to design veneers, Roland Dental Cutting System of Japan to cut VITABLOCS RTriLuxe three-layer ceramic blocks(VITA Company,Germany), and instantly completed the production of digital porcelain veneer in one day. According to the modified USPHS prosthesis evaluation criteria, the digital porcelain veneers were followed up on the baseline and 1, 3，6, 12 months after restorations. The results were analyzed by the chi-square test. Result: The anatomical form, marginal fitness, gingival condition, secondary caries and proximal contact points of digital porcelain veneer were good during the observation period. There were 2 cases of gingival inflammation in digital porcelain veneer after 1 month of bonding, which was caused by residual bonding agent. There was no discomfort in the follow-up after removing the residual bonding agent. But chi-square test shows there is no significant difference between the different time points. Within 12 months, the success rate of grade A was more than 90%. CONCLUSION: Digital porcelain veneer has good short-term effect in esthetic restorations for anterior teeth. It has the advantages of fast, minimally invasive, beautiful looking and good adaptability. It is a new esthetic and minimally invasive dentistry method for anterior teeth, but its long-term effect remains to be further observed.

Key words: [Key word] CAD/CAM, Porcelain laminate veneer, Minimally Invasive Cosmetic Dentistry/MICD