Interference of bonding agent on compound resins resistance to micro shearing
International Journal of Development Research
Interference of bonding agent on compound resins resistance to micro shearing
Received 07th August, 2018; Received in revised form 09th September, 2018; Accepted 16th October, 2018; Published online 30th November, 2018.
Copyright © 2018, Thiago Santos Dantas Araújo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objective: To assess bond strength of different conventional and universal adhesive systems to dentine substrate. Methods: 40 bovine teeth had their roots severed and vestibular surface planed until dentine exposure, and were randomly divided into five groups (n=16), according to the adhesive system used: Group SB2- Adper Single Bond 2; Group A- Ambar; Group APS- Ambar APS; Group SBU- Single Bond Universal; Group AU- Ambar Universal. Two transparent cylindrical matrices were fixated over the hybridized dentine and the compound resin Z250 XTwas applied. Results: Group SB2 (5.44 MPa) showed the lowest bond strength, followed by Group APS (6.74 MPa), which showed no significant difference from each other, but were significantly different from Groups A, SBU and AU (p<0.05). Group AU (9.38 MPa) showed the highest bond strength, followed by Group A (8.55 MPa) and Group SBU (8.09 MPa); these three groups were statistically similar. Conclusion: The fiveadhesive systems tested showed acceptable bond to dentine substrate, althoughGroups AU, A and SBU have shown the largest strength among them.
