Giachetti L, Scaminaci Russo D, Landi D
Insegnamento di Materiali Dentar, Università degli Studi di Firenze, Firenze, Italy.
Minerva Stomatol. 2003 Apr;52(4):157-67.
The purpose of the present study was to analyse bonding compatibility between photo- and self-polymerising composite resins ad two-step total-etch (one component) adhesive systems with a different activation method.
Thirty healthy extracted molars were cut transversally to obtain sixty flat dentin surfaces. The acid conditioned surfaces were bonded with Scotchbond 1 (3M), Excite (Vivadent) or Excite DSC (Vivadent). A cylinder of composite resin (3 mm diameter and 4 mm height) was constructed on each adhesive layer using photopolymerised Tetric Ceram (Vivadend) and dual Luxacore (DMG) but activated only chemically. The samples were subjected to the shear bond test. The fracture surfaces obtained were classified by type and site in the stereomicroscope. Twelve samples representing each group were further prepared for the SEM.
The data obtained from the test, the microscopic investigation and statistical analysis (ANOVA and Bonferroni) seem to confirm the presence of a reduced bonding compatibility between one-component adhesive systems and self-polymerising composites. This incompatibility is evident for the adhesive Scotchbond 1 and limited for Excite, while it seems to be overcome by Excite DSC which appears to bond well with both Tetric Ceram and Luxacore.
Adhesive-composite incompatibility seems to depend on the activation method of the composite as well as on that of the adhesive system. The chemical compatibility bet-ween these two materials is influenced not only by the chemical composition of the adhesive, but also by that of the composite.
本研究旨在分析光固化和自聚合复合树脂与采用不同活化方法的两步全酸蚀（单组分）粘结系统之间的粘结相容性。
将30颗健康拔除的磨牙横向切割，以获得60个平坦的牙本质表面。酸蚀处理过的表面分别用Scotchbond 1（3M公司）、Excite（Vivadent公司）或Excite DSC（Vivadent公司）进行粘结。在每个粘结层上使用光固化的Tetric Ceram（Vivadend公司）和双固化的Luxacore（DMG公司）构建一个复合树脂圆柱体（直径3mm，高4mm），但仅采用化学活化方式。对样本进行剪切粘结测试。在体视显微镜下根据断裂类型和部位对获得的断裂表面进行分类。每组选取12个样本进一步制备用于扫描电子显微镜观察。
从测试、显微镜观察和统计分析（方差分析和Bonferroni检验）获得的数据似乎证实了单组分粘结系统与自聚合复合树脂之间存在粘结相容性降低的情况。这种不相容性在Scotchbond 1粘结剂中很明显，在Excite粘结剂中有限，而Excite DSC似乎克服了这一问题，它与Tetric Ceram和Luxacore都粘结良好。
粘结剂与复合树脂之间的不相容性似乎取决于复合树脂以及粘结系统的活化方法。这两种材料之间的化学相容性不仅受粘结剂化学成分的影响，还受复合树脂化学成分的影响。
