Crim G A, Mattingly S L
ASDC J Dent Child. 1980 Sep-Oct;47(5):333-6.
The following conclusions may be made from this study: Substantial leakage occurs around unetched composite restorations. No procedure employed in this study consistently eliminated all leakage. Etching the peripheral enamel decreased penetration of the dye. The use of an intermediary bonding resin did not enhance marginal sealing over that obtained when only the etchant was used. The gingival margin was less resistant to penetration of the dye than the occlusal margin. Beveling the cavosurface margin produced a significant decrease in leakage, when employed with acid etching in Group II.
未酸蚀的复合树脂修复体周围会发生大量渗漏。本研究中采用的任何操作都不能始终如一地消除所有渗漏。酸蚀周边牙釉质可减少染料的渗透。使用中间粘结树脂并不会比仅使用酸蚀剂时增强边缘密封性。牙龈边缘比咬合边缘更易被染料渗透。在第二组中，当与酸蚀联合使用时，洞缘斜面可显著减少渗漏。
