Influence of a hydrophobic resin coating on the bonding efficacy of three universal adhesives

Miguel Angel Muñoz, Ana Sezinando, Issis Luque-Martinez, Anna Luiza Szesz, Alessandra Reis, Alessandro D. Loguercio, Nara Hellen Bombarda, Jorge Perdigao

Research output: Contribution to journalArticle

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Abstract

Objectives To evaluate the effect of an additional hydrophobic resin coating (HE) on the resin-dentine microtensile bond strengths (μTBS), nanoleakage (NL), and in situ degree of conversion (DC) of three universal adhesives used in the etch-and-rinse (ER) and the self-etch (SE) modes. Methods Sixty caries-free extracted third molars were divided into 12 groups according to the combination of the factors adhesive (All-Bond Universal [ABU]; G-Bond Plus [GBP] and Scotchbond Universal [SBU]), adhesive strategy (ER and SE), and the use of HE (Heliobond; yes or no). After restorations were constructed, specimens were stored in water (37 °C/24 h) and sectioned into resin-dentine beams (0.8 mm2) to be tested under tension (0.5 mm/min). Selected beams from each tooth were used for DC quantification and for NL evaluation. Data from each adhesive were analyzed with two-way ANOVA and Tukey's test (α = 0.05). Results ABU and GBP resulted in higher μTBS in the ER mode. The use of HE increased the μTBS of ABU and GBP only in the SE mode. Lower NL was observed for SBU and ABU in the ER mode + HE, and for GBP in the SE mode + HE. SBU and GBP showed higher DC when used in the ER mode, which was increased with HE application. The DC of ABU was similar in all conditions. Conclusions The conversion of 1-step SE to 2-step SE may increase the μTBS and DC of current universal adhesives. The reduction in the NL is more dependent on the adhesive composition than on the bonding strategy.

Original languageEnglish (US)
Pages (from-to)595-602
Number of pages8
JournalJournal of Dentistry
Volume42
Issue number5
DOIs
StatePublished - Jan 1 2014

Fingerprint

Adhesives
Dentin
Third Molar
Analysis of Variance
Tooth
G-Bond
Water
Scotchbond

Keywords

  • Degree of conversion
  • Etch-and-rinse
  • Hydrophobic resin coat
  • Microtensile bond strength
  • Nanoleakage
  • Self-etch
  • Universal simplified adhesive systems

Cite this

Muñoz, M. A., Sezinando, A., Luque-Martinez, I., Szesz, A. L., Reis, A., Loguercio, A. D., ... Perdigao, J. (2014). Influence of a hydrophobic resin coating on the bonding efficacy of three universal adhesives. Journal of Dentistry, 42(5), 595-602. https://doi.org/10.1016/j.jdent.2014.01.013

Influence of a hydrophobic resin coating on the bonding efficacy of three universal adhesives. / Muñoz, Miguel Angel; Sezinando, Ana; Luque-Martinez, Issis; Szesz, Anna Luiza; Reis, Alessandra; Loguercio, Alessandro D.; Bombarda, Nara Hellen; Perdigao, Jorge.

In: Journal of Dentistry, Vol. 42, No. 5, 01.01.2014, p. 595-602.

Research output: Contribution to journalArticle

Muñoz, MA, Sezinando, A, Luque-Martinez, I, Szesz, AL, Reis, A, Loguercio, AD, Bombarda, NH & Perdigao, J 2014, 'Influence of a hydrophobic resin coating on the bonding efficacy of three universal adhesives', Journal of Dentistry, vol. 42, no. 5, pp. 595-602. https://doi.org/10.1016/j.jdent.2014.01.013
Muñoz MA, Sezinando A, Luque-Martinez I, Szesz AL, Reis A, Loguercio AD et al. Influence of a hydrophobic resin coating on the bonding efficacy of three universal adhesives. Journal of Dentistry. 2014 Jan 1;42(5):595-602. https://doi.org/10.1016/j.jdent.2014.01.013
Muñoz, Miguel Angel ; Sezinando, Ana ; Luque-Martinez, Issis ; Szesz, Anna Luiza ; Reis, Alessandra ; Loguercio, Alessandro D. ; Bombarda, Nara Hellen ; Perdigao, Jorge. / Influence of a hydrophobic resin coating on the bonding efficacy of three universal adhesives. In: Journal of Dentistry. 2014 ; Vol. 42, No. 5. pp. 595-602.
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abstract = "Objectives To evaluate the effect of an additional hydrophobic resin coating (HE) on the resin-dentine microtensile bond strengths (μTBS), nanoleakage (NL), and in situ degree of conversion (DC) of three universal adhesives used in the etch-and-rinse (ER) and the self-etch (SE) modes. Methods Sixty caries-free extracted third molars were divided into 12 groups according to the combination of the factors adhesive (All-Bond Universal [ABU]; G-Bond Plus [GBP] and Scotchbond Universal [SBU]), adhesive strategy (ER and SE), and the use of HE (Heliobond; yes or no). After restorations were constructed, specimens were stored in water (37 °C/24 h) and sectioned into resin-dentine beams (0.8 mm2) to be tested under tension (0.5 mm/min). Selected beams from each tooth were used for DC quantification and for NL evaluation. Data from each adhesive were analyzed with two-way ANOVA and Tukey's test (α = 0.05). Results ABU and GBP resulted in higher μTBS in the ER mode. The use of HE increased the μTBS of ABU and GBP only in the SE mode. Lower NL was observed for SBU and ABU in the ER mode + HE, and for GBP in the SE mode + HE. SBU and GBP showed higher DC when used in the ER mode, which was increased with HE application. The DC of ABU was similar in all conditions. Conclusions The conversion of 1-step SE to 2-step SE may increase the μTBS and DC of current universal adhesives. The reduction in the NL is more dependent on the adhesive composition than on the bonding strategy.",
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AU - Loguercio, Alessandro D.

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