Effect of silane contamination on dentin bond strength

Area of Science:

• Dental Materials Science
• Biomaterials Engineering
• Adhesive Dentistry

Background:

• Intraoral repair of silica-based ceramics often involves silane application.
• Dental repairs may require bonding to tooth structures like dentin.
• The impact of silane on dentin bond strength needs investigation.

Purpose of the Study:

• To evaluate the effect of silane cross-contamination on dentin bond strength.
• To assess silane's influence on universal adhesives in different modes.

Main Methods:

• Human dentin specimens were prepared and divided into four groups.
• Specimens were treated with All-Bond Universal Adhesive in self-etch or total-etch modes, with or without prior silane application.
• Shear bond strength was measured, and failure modes were analyzed.

Main Results:

• No significant adverse effect on composite resin bond strength to dentin was observed with silane contamination.
• Shear bond strength values were comparable across all tested groups (SE, SiSE, ER, ERSi).
• Statistical analysis (ANOVA, Tukey's HSD) confirmed no detrimental impact (P>.05).

Conclusions:

• Silane cross-contamination of dentin does not adversely affect composite resin bond strength with universal adhesives.
• This finding supports current intraoral repair protocols involving silane and dentin bonding.
• The study utilized scanning electron microscopy for surface morphology evaluation.