Salivary Contamination and Decontamination: Bond Strength to Dentin of Primary and Permanent Teeth

Flury, Simon; Santschi, Katharina; Peutzfeldt, Anne; Lussi, Adrian (22 January 2015). Salivary Contamination and Decontamination: Bond Strength to Dentin of Primary and Permanent Teeth. In: 32. Jahrestagung der Schweizerischen Vereinigung für Kinderzahnmedizin SVK. Bern. 22.01.2015.

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Aim: To evaluate the effects of salivary contamination and decontamination on bond strength of two one-step adhesives to primary and permanent dentin.
Methods: Dentin specimens were prepared from extracted primary and permanent molars (210 of each) and were distributed to seven groups (n=15/group/molar type) for each adhesive (Xeno V+ and Scotchbond Universal): no saliva contamination (control); saliva contamination before or after light-curing of the adhesives followed either by air-drying, by rinsing with water and air-drying, or by rinsing with water, air-drying and reapplication of the adhesives. Resin composite was applied and the specimens were stored for 24h (37°C, 100% humidity). Then, shear bond strength (SBS) was measured and data analyzed with nonparametric ANOVA and Wilcoxon rank sum tests.
Results: Saliva contamination reduced SBS of Xeno V+, the reduction being more pronounced when contamination occurred before light-curing than after. In both situations, decontamination involving reapplication of the adhesive restored SBS. Saliva contamination had no significant effect on Scotchbond Universal. There were no differences in SBS between primary and permanent teeth.
Conclusion: Saliva contamination reduced SBS of Xeno V+, but not of Scotchbond Universal. SBS was restored when contaminated dentin was rinsed with water and air-dried followed by reapplication of the adhesive.

Item Type:

Conference or Workshop Item (Poster)


04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Flury, Simon; Peutzfeldt, Anne and Lussi, Adrian


600 Technology > 610 Medicine & health




Simon Flury

Date Deposited:

29 Jan 2015 11:32

Last Modified:

28 Nov 2020 02:25

Uncontrolled Keywords:

All-in-one adhesives, one-bottle adhesives, adhesion, dentin bonding, deciduous teeth




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