COMPARATIVE EVALUATION OF MICROLEAKAGE OF NEWER GENERATION OF DENTIN BONDING AGENTS IN CLASS V CAVITY: A DYE PENETRATION STUDY

Aims: This study aims to evaluate the microleakage (ML) of the newer generations bonding agents in Class V Cavity.

Materials and Methods: Thirty six mandibular premolars were randomly divided into three groups: Group I (n = 12)‑bonded with GlumaBond5, Group II (n = 12) with G-Bond  and Group III (n = 12) with Single Bond Universal Adhesive. Class V box cavity was prepared on the buccal surface and restored with composite resin with recommended each groups specific bonding protocol for each adhesive. ML testing were conducted, Rhodamine B and stereomicroscope was used to measure microleakage and data analyzed. Kruskal–Wallis analysis was done to statistically differentiate the ML between the three experimental groups. Intergroup comparison was made using the Mann–Whitney U test and the level of significance was set at p<0.05.

Results :Single Bond Universal Adhesive showed maximum resistance to microleakage followed by GlumaBond5 and G- Bond and this difference is statistically significant(p<0.05). Mann–Whitney U test shows statistically significant difference between Group II and Group III. (p<0.05).

Conclusions: Within this studys limitation, composite resin bonded with Single Bond Universal Adhesive  showed maximumresistance to ML followed by GlumaBond5 and G-Bond.