Silver diamine fluoride and cleaning methods effects on dentin bond strength

Area of Science:

• Dental Materials Science
• Adhesive Dentistry
• Caries Management

Background:

• Silver diamine fluoride (SDF) is effective for arresting caries.
• SDF application may compromise the bond strength of dental adhesives to dentin.
• Optimizing bonding procedures after SDF application is crucial for restoration longevity.

Purpose of the Study:

• To evaluate the impact of silver diamine fluoride (SDF) on the bond strength of current adhesive systems to caries-affected dentin.
• To investigate cleaning methods for overcoming SDF's interference with dentin adhesion.

Main Methods:

• Microshear bond strength (MBS) testing was performed on 64 human molars.
• Samples were treated with 38% SDF and restored with etch-and-rinse or self-etch adhesives.
• Cleaning protocols included water, aluminum oxide, and pumice paste after SDF application.

Main Results:

• SDF significantly reduced MBS for self-etch adhesives on caries-affected dentin.
• Pumice paste cleaning maintained MBS in SDF-treated groups compared to controls.
• Etch-and-rinse adhesives showed no significant reduction in MBS after SDF application.

Conclusions:

• Self-etch adhesives are not recommended for SDF-treated dentin.
• Pumice paste cleaning effectively reduces SDF's negative impact on resin-dentin bond strength.
• Etch-and-rinse adhesives appear compatible with SDF treatment.