In vivo Study of Adaptation of Adhesive Composites

本研究的目的是评价新研制的牙科复合材料在体内外的边缘微渗漏和适应性。材料包括三种修复体：Phototo前牙/衬里粘结系统、PhotoClearfi Bright/Photo Bond和Clearfi F II/New Bond。用这些材料修复拔除的人前磨牙，评估载荷循环或热循环后的边缘微渗漏和适应性。然后，用这些复合材料修复猴子的牙齿。分别于修复后7d和180d处死动物，拔除牙齿，评价边缘微渗漏和适合性。无论是在体外还是在体内，Photo Forward/Liner Bond系统在所有材料中显示出最小的边缘微渗漏和最好的洞腔适应性。结果表明，CA助剂、SA底漆和防护层对复合材料与型腔的粘结起到了促进作用。

The purpose of this study was to evaluate marginal microleakage and adaptation of newly developed dental composite in vivo and in vitro. The materials used in this study were three restorative composites, Photo Anterior/Liner Bond System, PhotoClearfil Bright/Photo Bond and Clearfil F II/ New Bond. Extracted human premolars restored with these materials were evaluated marginal microleakage and adaptation after load cycled or thermocycled. Then, monkey teeth were restored with these composites. The animals were sacrificed 7 and 180 days after restoration and the teeth were extracted and evaluated marginal microleakage and adaptation. Both in vitro and in vivo, Photo Anterior/Liner Bond System showed the least marginal microleakeage and best adaptation to the cavity in all materials. The results suggests that CA agent, SA primer and protect Liner in which the Liner Bond System consists contribute the adhesion of the composite to the cavity.