Objective : To evaluate the color change of the two-layer porcelain laminate veneer after adding veneering porcelain of different thickness to the 0. 2 mm thick aluminum oxide. Methods : Ten aluminum oxide disks were ...Objective : To evaluate the color change of the two-layer porcelain laminate veneer after adding veneering porcelain of different thickness to the 0. 2 mm thick aluminum oxide. Methods : Ten aluminum oxide disks were randomized into 2 groups. Each of five disks was veneered with Vita Lumin Shade 54 porcelain of thickness 0/0.4 mm and 0. 6 mm respectively. The L'a'b* color notations of the substrate covered with nan-veneered disks and 2 thickness porcelain veneered disks were measured separately and the color differences (AE) were calculated. Results ?Statistically significant differences in color coordinates of dark substrates were recorded after the substrate was covered by an aluminum oxide disk and also after the addition of veneering porcelain to the aluminum oxide disks in group 1 (P=0. 000 2) and group 2(P=0. 007 5) and between 2 groups (P=0. 000 1). Conclusion -The ability of masking underlying discoloration was increased and shifted to gray when the thickness of veneering porcelain increased.展开更多
目的:对比美塑树脂贴面与瓷贴面修复前牙间隙的效果。方法:回顾性分析笔者医院2018年2月-2018年12月收治的45例采用瓷贴面进行美容修复的前牙间隙患者的临床资料和2019年1月-2019年10月收治的45例采用美塑树脂贴面进行美容修复的前牙间...目的:对比美塑树脂贴面与瓷贴面修复前牙间隙的效果。方法:回顾性分析笔者医院2018年2月-2018年12月收治的45例采用瓷贴面进行美容修复的前牙间隙患者的临床资料和2019年1月-2019年10月收治的45例采用美塑树脂贴面进行美容修复的前牙间隙患者的临床资料,分别记为对照组和观察组。对比修复后即刻、修复后2年修复体美国公共健康协会(United states public health society,USPHS)的修正标准评分结果、修复成功率和修复体牙髓有活力率,修复前和修复两年后牙周出血指数,修复材料脱落、局部折断及变色染色发生率。结果:观察组修复后即刻、修复后2年的修复体颜色、形态、边缘着色、密合度和继发龋USPHS评价A级者占比、修复成功率和修复体牙髓有活力率均高于对照组(均P<0.05);两组修复后2年牙周出血指数均减少,观察组低于对照组(均P<0.05);观察组总不良事件发生率低于对照组(P<0.05)。结论:美塑树脂贴面与瓷贴面修复前牙间隙均有一定疗效,且均可达到患者满意,但前者的疗效更佳,对牙周出血指数的改善效果更理想,且不良事件发生率更低。展开更多
文摘Objective : To evaluate the color change of the two-layer porcelain laminate veneer after adding veneering porcelain of different thickness to the 0. 2 mm thick aluminum oxide. Methods : Ten aluminum oxide disks were randomized into 2 groups. Each of five disks was veneered with Vita Lumin Shade 54 porcelain of thickness 0/0.4 mm and 0. 6 mm respectively. The L'a'b* color notations of the substrate covered with nan-veneered disks and 2 thickness porcelain veneered disks were measured separately and the color differences (AE) were calculated. Results ?Statistically significant differences in color coordinates of dark substrates were recorded after the substrate was covered by an aluminum oxide disk and also after the addition of veneering porcelain to the aluminum oxide disks in group 1 (P=0. 000 2) and group 2(P=0. 007 5) and between 2 groups (P=0. 000 1). Conclusion -The ability of masking underlying discoloration was increased and shifted to gray when the thickness of veneering porcelain increased.
文摘目的:对比美塑树脂贴面与瓷贴面修复前牙间隙的效果。方法:回顾性分析笔者医院2018年2月-2018年12月收治的45例采用瓷贴面进行美容修复的前牙间隙患者的临床资料和2019年1月-2019年10月收治的45例采用美塑树脂贴面进行美容修复的前牙间隙患者的临床资料,分别记为对照组和观察组。对比修复后即刻、修复后2年修复体美国公共健康协会(United states public health society,USPHS)的修正标准评分结果、修复成功率和修复体牙髓有活力率,修复前和修复两年后牙周出血指数,修复材料脱落、局部折断及变色染色发生率。结果:观察组修复后即刻、修复后2年的修复体颜色、形态、边缘着色、密合度和继发龋USPHS评价A级者占比、修复成功率和修复体牙髓有活力率均高于对照组(均P<0.05);两组修复后2年牙周出血指数均减少,观察组低于对照组(均P<0.05);观察组总不良事件发生率低于对照组(P<0.05)。结论:美塑树脂贴面与瓷贴面修复前牙间隙均有一定疗效,且均可达到患者满意,但前者的疗效更佳,对牙周出血指数的改善效果更理想,且不良事件发生率更低。
