浙江医学2012，Vol.34Issue(9)：681-683,689,4.
三种前牙美学修复体边缘适合性的比较研究
Comparison of marginal fit in vitro among three aesthetic crown systems
摘要
Abstract
Objective To compare the marginal adaptation of single anterior restorations with different systems in vitro. Methods Thirty working dies were created from a single master die and used to fabricate copings as follows: group A (Ceramage, Shofu;re = 10), group B (Kavo Zirconia,KAVO;n = 10) and group C (IPS e.max press, ivoclar vivadent; n = 10). All the copings were fabricated according to manufacturers. The restorations were seated on the master die, and high-resolution digital photographs were made of the marginal area on both sides. The vertical marginal gap dimension was then measured using a calibrated digital software program. One-way ANOVA and LSD tests were used to determine statistically significant differences. Results Mean gap dimensions and standard deviations at the marginal opening for the incisor crowns were (43.75 ± 6.80 )iam for group A, (51.71 ±6.50)um for group B and (55.75 ±8.48)um for group C, respectively. A statistically significant difference was found among three groups (PAB<0.01 ,PAC<0.01 ,PBC<0.01). Conclusion The marginal gaps of three different aesthetic crown systems are all within the clinically acceptable standard set at 120μm. However, the Ceramage system shows the smallest gap dimension, whereas the IPS e.max press system presents the largest gap dimension among the three groups.关键词
美学/基底冠/全瓷/边缘适合性Key words
Aesthetic/Coping/Ceramic/Marginal fit引用本文复制引用
杨帆,徐梅,陈鹤良,王仁飞..三种前牙美学修复体边缘适合性的比较研究[J].浙江医学,2012,34(9):681-683,689,4.基金项目
浙江省重中之重学科新材料及加工工程开放基金(G9713101040) （G9713101040）
