Waki Tomonori, Nakamura Takashi, Wakabayashi Kazumichi, Mutobe Yoshihiko, Yatani Hirofumi
Division of Oromaxillofacial Regeneration, Course for Integrated Oral Sciences and Stomatology, Osaka University Graduate School of Dentistry, Japan.
Int J Prosthodont. 2004 May-Jun;17(3):364-8.
This study examined the influence of the adhesive strength between fiber-reinforced composites (FRC) and veneering composites on the fracture load of combinations of these materials.
Six materials were used. An experimental material called BR-100, Vectris, and FibreKor were the types of FRC. Estenia, Targis, and Sculpture were used as veneering composites. With the Estenia/BR-100 combination, the surface of the FRC was subjected to three different conditions before veneering. Ten specimens of each combination were fabricated and divided into two groups: One group was stored in 37 degrees C distilled water for 24 hours, and the other was thermocycled (4 degrees C/60 degrees C, 10,000 cycles). Adhesive strength between FRCs and veneering composites was determined using the compressive shear strength test. In addition, fracture loads of laminate specimens were determined.
Good adhesive strength was obtained by leaving an unpolymerized layer on the surface of the FRC or by performing silane and bonding treatment. In the Estenia/BR-100 combination, when the adhesive strength was low, the fracture load of the laminate specimens was also low. However, the difference in fracture load was not as large as that seen in adhesive strength. The fracture load of each laminate specimen was significantly lower after thermocycling.
The adhesive strength between the FRCs and veneering composite had an effect on the fracture load of the combination.
本研究探讨纤维增强复合材料（FRC）与贴面复合材料之间的粘结强度对这些材料组合的断裂载荷的影响。
使用了六种材料。一种名为BR - 100的实验材料、Vectris和FibreKor为FRC类型。Estenia、Targis和Sculpture用作贴面复合材料。对于Estenia/BR - 100组合，在贴面之前FRC的表面经过三种不同处理。每种组合制作10个试件，并分为两组：一组在37℃蒸馏水中储存24小时，另一组进行热循环（4℃/60℃，10000次循环）。使用压缩剪切强度试验测定FRC与贴面复合材料之间的粘结强度。此外，测定层压试件的断裂载荷。
通过在FRC表面保留未聚合层或进行硅烷和粘结处理可获得良好的粘结强度。在Estenia/BR - 100组合中，当粘结强度较低时，层压试件的断裂载荷也较低。然而，断裂载荷的差异不如粘结强度差异那么大。热循环后每个层压试件的断裂载荷显著降低。
FRC与贴面复合材料之间的粘结强度对组合的断裂载荷有影响。
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