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. 2014 Jan;17(1):31-4.
doi: 10.4103/0972-0707.124124.

Effect of saliva contamination on the shear bond strength of a new self-etch adhesive system to dentin

Swapna Munaga  1 , Rajkiran Chitumalla  2 , Satheesh Kr Kubigiri  3 , Manjusha Rawtiya  1 , Sheeba Khan  1 , Parappa Sajjan  4
Affiliations

Effect of saliva contamination on the shear bond strength of a new self-etch adhesive system to dentin

Swapna Munaga et al. J Conserv Dent. 2014 Jan.

Abstract

Aims and objectives: To evaluate the effect of saliva contamination on the shear bond strength of a new two-step self-etch adhesive (P90 system adhesive) to dentin and to determine the effect of contaminant removing treatments on the recovery of bond strengths.

Materials and methods: The buccal surfaces of 40 human premolars were ground to expose dentin. The specimens were randomly divided into four groups. Group 1 is uncontaminated and serves as the control group. Further groups were divided based on the step in the bonding sequence when the contamination had occurred as follows: Group 2 (primer, saliva contamination, rinse and dry), group 3 (after procedure of group 2, reapplication of primer), and group 4 (after procedure like in control group, saliva contamination, rinse and dry). Filtek P90 composite resin cylinders of 3 mm diameter and 3 mm length were fabricated on the surfaces. Shear bond strength testing was done in an Instron Universal Testing Machine and the data were subjected to one-way analysis of variance (ANOVA) and Student's t-test.

Results: With P90 system adhesive, group 2 and group 4 showed lower shear bond strength than group 1 (control) and group 3 (P < 0.05).

Conclusion: Saliva contamination significantly decreased the shear bond strength of the adhesive to dentin.

Keywords: Adhesion; contamination; self-etch primer; shear bond strength.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
Schematic representation of the control and experimental protocol
See this image and copyright information in PMC

References

    1. Hitmi L, Attal JP, Degrange M. Influence of time point of salivary contamination on dentin shear bond strength of 3 dentin adhesive systems. J Adhes Dent. 1999;1:219–32. - PubMed
    1. Mojon P, Kaltio R, Feduik D, Hawbolt EB, MacEntee MI. Short term contamination of luting cements by water and saliva. Dent Mater. 1996;12:83–7. - PubMed
    1. Yoo HM, Oh TS, Pereira PN. Effect of saliva contamination on the micro shear bond strength of one step-etching Adhesive Systems to Dentin. Oper Dent. 2006;31:127–34. - PubMed
    1. Hormati AA, Fuller JL, Denehy GE. Effects of contamination and mechanical disturbance on the quality of acid-etched enamel. J Am Dent Assoc. 1980;100:34–8. - PubMed
    1. EL-Kalla IH, Garcia-Godoy F. Saliva contamination and bond strength of single-bottle adhesives to enamel and dentin. Am J Dent. 1997;10:83–7. - PubMed