J Clin Exp Dent. 2017;9(1):e96-100: Bond strength of all-ceramic systems

Journal section: Prosthetic Dentistry
Publication Types: Research

Bond strength of adhesive resin cement with different adhesive systems.

Fabrizio Lorenzoni e Silva 1, Saulo Pamato 1, Milton-Carlos Kuga 2, Marcus-Vinicius-Reis Só, Jefferson Ricardo Pereira 1

1 DDS MSc, Program of Health Science, University os Southern Santa Catarina, Tubarão, Santa Catarina, Brazil
2 DDS, PhD, Department of Restorative Dentistry, Araraquara Dental School, Araraquara, SP, Brazil
3 DDS, MSc, PhD, Department od Endodontics, Federal University of Rio Grande do Sul

Correspondence:

University of Southern Santa Catarina, Tubarão, SC, Brazil
Address: Rua Recife 200 – Apto 601 -Bairro Recife – CEP: 88701-420
jeffripe@rocketmail.com

Abstract

Background: To assess the immediate bond strength of a dual-cure adhesive resin cement to the hybridized dentin with different bonding systems.
Material and methods: Fifty-six healthy human molars were randomly divided into 7 groups (n=8). After 3 longitudinal sections, the central cuts were included in PVC matrix and were submitted to dentin hybridization according to the groups: G1 – etch&rinse system with 3-step (Apder tm Scotchbond tm Multi-Purpose, 3M ESPE), G2 – etch & rinse system with 3-step (optibond tm FL, kerr), G3 – etch & rinse system with 3-step (All-Bond 3r, Bisco), G4 – etch & rinse simplifield system (Adpter tm Single Bond 2, 3M ESPE), G5 – self-etching system with one step (Bond Force, Tokuyama) G6 – universal system in moist dentin (Single Bond Universal, 3M ESPE), G7 – universal system in dry dentin (Single Bond Universal, 3M ESPE). Then all groups received the cementing of a self-adhesive resin cement cylinder (Duo-link, Bisco) made from a polypropylene matrix. In the evaluationof bond strength, the samples were subjected to the microshear test and evaluated according to the fracture pattern by optical microscopy.

Results: The Kruskal-Wallis test suggests a statistically significant differente between groups (p=0,039), and Tukey for multiple comparisons, indicating a statistically significant difference between G3 and G4 (p<0,05). It was verified high prevalence of adhesive failures, followed by mixed failure and cohesive in dentin.

Conclusions: The technique and the system used to dentin hybridization are able to affect the immediate bond strength of resin cement dual adhesive.

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