Abstract: Objective To observe the anaphylaxis and retention influence to the porcelain laminate veneer prepared teeth with jetline dentin protective film. Methods 82 front teeth were divided into two groups at random before bonding to the porcelain laminate veneer. After the preparation, teeth in experimental group coating jetline dentin protective film before bonding by light cured resin cement, and the teeth in control group bonding by light cured resin cement directly, were examined after 2 years to record the completeness of the restored teeth, the edge adaptation and the sensitivity of the target teeth. Results The comparison of two groups in the completeness of the restored teeth and the edge adaptation had no statistical significance (P>0.05). The comparison of two groups in the sensitivity of the target teeth had statistical significance (P<0.05).Conclusion There’s a decrease on the sensitivity of the target teeth and no influence on the bond with the porcelain laminate veneer after coating jetline dentin protective film.

Key words: jetline dentin protective film, porcelain laminate veneer, anaphylaxis, retention