CC BY-NC-ND 4.0 · Eur J Dent 2013; 07(03): 315-326
DOI: 10.4103/1305-7456.115416
Original Article
Dental Investigation Society

Hybridization quality and bond strength of adhesive systems according to interaction with dentin

Luciana Andrea Salvio
1   Department of Restorative Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
Vinicius Di Hipólito
2   Biomaterials Research Group, School of Dentistry, Bandeirante University of São Paulo, Anhanguera-Uniban, São Paulo, SP, Brazil
Adriano Luis Martins
3   Department of Oral Diagnosis, Piracicaba School of Dentistry, University of Campinas, Piracicaba, SP, Brazil
Mario Fernando de Goes
4   Department of Restorative Dentistry, Piracicaba School of Dentistry, University of Campinas, Piracicaba, SP, Brazil
› Author Affiliations
Further Information

Publication History

Publication Date:
26 September 2019 (online)


Objective: To evaluate the hybridization quality and bond strength of adhesives to dentin. Materials and Methods: Ten human molars were ground to expose the dentin and then sectioned in four tooth-quarters. They were randomly divided into 5 groups according to the adhesive used: Two single-step self-etch adhesives - Adper Prompt (ADP) and Xeno III (XE), two two-step self-etching primer systems - Clearfil SE Bond (SE) and Adhe SE (ADSE), and one one-step etch-and-rinse system - Adper Single Bond (SB). Resin composite (Filtek Z250) crown buildups were made on the bonded surfaces and incrementally light-cured for 20 s. The restored tooth-quarters were stored in water at 37΀C for 24 h and then sectioned into beams (0.8 mm 2 in cross-section). Maximal microtensile bond strength (μ-TBS) was recorded (0.5 mm/min in crosshead speed). The results were submitted to one-way ANOVA and Tukey′s test (α = 0.05). Thirty additional teeth were used to investigate the hybridization quality by SEM using silver methenamine or ammoniacal silver nitrate dyes. Results: SE reached significantly higher μ-TBS (P < 0.05); no significance was found between ADSE and XE (P > 0.05), and between SB and ADP (P > 0.05); ADSE and XE were significantly higher than SB and ADP (P < 0.05). The bonding interface of SB showed the most intense silver uptake. SE and ADSE showed more favorable hybridization quality than that observed for ADP and XE. Conclusions: The bond strength and hybridization quality were affected by the interaction form of the adhesives with dentin. The hybridization quality was essential to improve the immediate μ-TBS to dentin.


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