Liu Chang, Yang Suming, Chu Xiaoyu
First Outpatient Department, Peking University Hospital of Stomatology, Beijing 100081, China.
Contrast Media Mol Imaging. 2022 Aug 13;2022:9691594. doi: 10.1155/2022/9691594. eCollection 2022.
The clinical effect of feldspar ceramics and lithium disilicate reinforced glass ceramics was studied. 57 affected teeth with complete root canal treatment and computer aided design/computer aided manufacturing (CAD/CAM) endocrown restoration were reviewed 24-36 months aftercompletion of the restoration. These dimensions including anatomical morphology, proximal contact , color matching, edge integrity, edge coloring, secondary caries, kinesthetic occlusion relationship, and periodontal health of the affected teeth by the modified clinical scoringcriteriafor United States Public Health Service (USPHS) were evaluated, and the patients' satisfaction was recorded. The 57 affected teeth were divided into feldspar group and lithium disilicate reinforced ceramic group according to the different repair materials, and the statistical results are analyzed. The experimental results show medullary fixation crown can be used to repair a large area of dental defects after root canal treatment.
研究了长石陶瓷和二硅酸锂增强玻璃陶瓷的临床效果。对57颗经过完善根管治疗并采用计算机辅助设计/计算机辅助制造（CAD/CAM）嵌体冠修复的患牙，在修复完成后24至36个月进行复查。按照美国公共卫生服务部（USPHS）改良临床评分标准，评估这些患牙的解剖形态、邻接关系、颜色匹配、边缘完整性、边缘着色、继发龋、动觉咬合关系以及牙周健康等方面，并记录患者满意度。根据不同修复材料将57颗患牙分为长石组和二硅酸锂增强陶瓷组，并对统计结果进行分析。实验结果表明髓内固定冠可用于根管治疗后大面积牙体缺损的修复。
