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The study aims to assess how saliva contamination over different time intervals affects micro-shear bond strength in dentin sealed immediately.

March 26, 2026The Saudi Dental JournalOpen Access

Investigating the Effect of Saliva Contamination at Different Time Intervals on Micro-Shear Bond Strength of Dentin with Immediate Dentin Sealing

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The study aims to assess how saliva contamination over different time intervals affects micro-shear bond strength in dentin sealed immediately.
Conducted in vitro using 40 intact third molars.
Applied immediate dentin sealing with OptiBond FL after tooth preparation.
Divided samples into groups exposed to saliva for 0, 7, 14, and 30 days.
Measured micro-shear bond strength after rinsing and alumina conditioning.
Control group showed the highest bond strength (25.32 ± 6.70 MPa).
Lowest bond strength observed at 30 days of saliva exposure (21.93 ± 3.26 MPa).
No statistically significant difference in bond strengths between groups (P = 0.308).
Most failures were adhesive, except for one mixed failure in the control group.

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In vitro study investigates saliva's effect on bond strength in dentin sealing, suggesting minimal impact.

Sekandari et al. (2026) studied this question.

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