Närhi T O, Tanner J, Ostela I, Narva K, Nohrström T, Tirri T, Vallittu P K
Department of Prosthetic Dentistry and Biomaterials Research, Institute of Dentistry, University of Turku, Lemminkäisenkatu 2, 20520, Turku, Finland.
Clin Oral Investig. 2003 Dec;7(4):241-3. doi: 10.1007/s00784-003-0231-6. Epub 2003 Sep 18.
The purpose of this practice-based study was to compare the clinical performance of a new universal composite resin material (Z250) used for Class III and V cavities in anterior teeth. Restorative materials (Z250 and Z100; 3 M ESPE) placed by six operators were used for a total of 150 restorations during the 6-month enrollment period. After 1 year, 141 restorations (76 Z250 and 66 Z100) were available and evaluated for overall quality, color match, marginal adaptation, surface appearance and the presence of secondary caries, using modified USPHS criteria. The overall quality was excellent for both materials and no significant changes were noted during the follow-up. None of the scores between the two materials were statistically significant. Major changes were seen in color match and surface appearance. At baseline, the color match of 71% of Z250 and 62% of Z100 was rated as Alfa, after 1 year the figures were 60 and 65%. Regarding surface appearance, 97% of the Z250 were rated Alfa at baseline, whereas at 1 year the figure was 76%. For Z100, the scores were 94 and 79%, respectively. After 1 year, the clinical performance of Z250 restorative composite resin was clinically acceptable and similar to that of Z100.
这项基于实践的研究旨在比较一种用于前牙III类和V类洞的新型通用复合树脂材料（Z250）的临床性能。在为期6个月的入组期间，由6名操作人员使用修复材料（Z250和Z100；3M ESPE）共进行了150次修复。1年后，共有141个修复体（76个Z250和66个Z100）可供评估，采用改良的美国公共卫生署（USPHS）标准评估其整体质量、颜色匹配、边缘适应性、表面外观和继发龋的存在情况。两种材料的整体质量均为优秀，随访期间未发现显著变化。两种材料之间的各项评分均无统计学意义。在颜色匹配和表面外观方面出现了主要变化。基线时，71%的Z250和62%的Z100的颜色匹配被评为Alfa级，1年后这两个数字分别为60%和65%。关于表面外观，97%的Z250在基线时被评为Alfa级，而1年后这一数字为76%。对于Z100，评分分别为94%和79%。1年后，Z250复合树脂修复体的临床性能在临床上是可接受的，且与Z100相似。
