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The effect of different disinfecting agents on bond strength of resin composites.

Mohammed Hassan A, Ali Goda A, Baroudi K - Int J Dent (2014)

Bottom Line: Methods.Results.Conclusions.

View Article: PubMed Central - PubMed

Affiliation: Al-Farabi College, King Abdullah Road East, Ishbilia, P.O. Box 85184, Riyadh 11691, Saudi Arabia ; Department of Operative Dentistry, Al-Azhar University, Assiut, Egypt.

ABSTRACT
Objective. The aim of this study was to evaluate the effect of different disinfectant agents on bond strength of two types of resin composite materials. Methods. A total of 80 sound posterior teeth were used. They were divided into four groups (n = 20) according to the dentin surface pretreatment (no treatment, chlorhexidine gluconate 2%, sodium hypochlorite 4%, and EDTA 19%). Each group was divided into two subgroups according to the type of adhesive (prime and bond 2.1 and Adper easy one). Each subgroup was further divided into two subgroups according to the type of resin composite (TPH spectrum and Tetric EvoCeram). Shear bond strength between dentin and resin composite was measured using Universal Testing Machine. Data collected were statistically analyzed by t-test and one-way ANOVA followed by Tukey's post hoc test. Results. It was found that dentin treated with EDTA recorded the highest shear bond strength values followed by sodium hypochlorite and then chlorhexidine groups while the control group showed the lowest shear bond strength. Conclusions. The surface treatment of dentin before bonding application has a great effect on shear bond strength between resin composite and dentin surface.

No MeSH data available.


Mean shear bond strength (MPa) for all groups.
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Related In: Results  -  Collection


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fig2: Mean shear bond strength (MPa) for all groups.

Mentions: Mean values and standard deviations of all groups are shown in Figure 2. For the control group, the highest mean shear bond strength (11.3 ± 2.2 MPa) was recorded for nanohybrid composite bonded to dentin specimen using etch-and-rinse adhesive, while the lowest mean shear bond strength (7.8 ± 2.7 MPa) was recorded for microhybrid composite bonded to dentin specimen using self-etch adhesive. Shear bond strength for specimens treated with chlorhexidine ranged from (9.2 ± 2.2 MPa) for nanohybrid composite bonded to dentin using etch-and-rinse adhesive to (14.3 ± 1.5 MPa) for microhybrid composite bonded to dentin using etch-and-rinse adhesive. For (NaOCl) group, specimens treated with NaOCl and bonded to nanohybrid composite resin using self-etch adhesive showed the highest mean shear bond strength (14.6 ± 1.5 MPa) while those bonded to microhybrid composite using etch-and-rinse adhesive recorded the lowest mean shear bond strength (10.3 ± 1.5). For EDTA group, microhybrid composite bonded to dentin specimens using self-etch adhesive showed the highest mean shear bond strength (16.3 ± 1.9 MPa), while the lowest mean shear bond strength (8.3 ± 0.9) was recorded for those specimens bonded to nanohybrid composite using etch-and-rinse adhesive.


The effect of different disinfecting agents on bond strength of resin composites.

Mohammed Hassan A, Ali Goda A, Baroudi K - Int J Dent (2014)

Mean shear bond strength (MPa) for all groups.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4247941&req=5

fig2: Mean shear bond strength (MPa) for all groups.
Mentions: Mean values and standard deviations of all groups are shown in Figure 2. For the control group, the highest mean shear bond strength (11.3 ± 2.2 MPa) was recorded for nanohybrid composite bonded to dentin specimen using etch-and-rinse adhesive, while the lowest mean shear bond strength (7.8 ± 2.7 MPa) was recorded for microhybrid composite bonded to dentin specimen using self-etch adhesive. Shear bond strength for specimens treated with chlorhexidine ranged from (9.2 ± 2.2 MPa) for nanohybrid composite bonded to dentin using etch-and-rinse adhesive to (14.3 ± 1.5 MPa) for microhybrid composite bonded to dentin using etch-and-rinse adhesive. For (NaOCl) group, specimens treated with NaOCl and bonded to nanohybrid composite resin using self-etch adhesive showed the highest mean shear bond strength (14.6 ± 1.5 MPa) while those bonded to microhybrid composite using etch-and-rinse adhesive recorded the lowest mean shear bond strength (10.3 ± 1.5). For EDTA group, microhybrid composite bonded to dentin specimens using self-etch adhesive showed the highest mean shear bond strength (16.3 ± 1.9 MPa), while the lowest mean shear bond strength (8.3 ± 0.9) was recorded for those specimens bonded to nanohybrid composite using etch-and-rinse adhesive.

Bottom Line: Methods.Results.Conclusions.

View Article: PubMed Central - PubMed

Affiliation: Al-Farabi College, King Abdullah Road East, Ishbilia, P.O. Box 85184, Riyadh 11691, Saudi Arabia ; Department of Operative Dentistry, Al-Azhar University, Assiut, Egypt.

ABSTRACT
Objective. The aim of this study was to evaluate the effect of different disinfectant agents on bond strength of two types of resin composite materials. Methods. A total of 80 sound posterior teeth were used. They were divided into four groups (n = 20) according to the dentin surface pretreatment (no treatment, chlorhexidine gluconate 2%, sodium hypochlorite 4%, and EDTA 19%). Each group was divided into two subgroups according to the type of adhesive (prime and bond 2.1 and Adper easy one). Each subgroup was further divided into two subgroups according to the type of resin composite (TPH spectrum and Tetric EvoCeram). Shear bond strength between dentin and resin composite was measured using Universal Testing Machine. Data collected were statistically analyzed by t-test and one-way ANOVA followed by Tukey's post hoc test. Results. It was found that dentin treated with EDTA recorded the highest shear bond strength values followed by sodium hypochlorite and then chlorhexidine groups while the control group showed the lowest shear bond strength. Conclusions. The surface treatment of dentin before bonding application has a great effect on shear bond strength between resin composite and dentin surface.

No MeSH data available.