Sealing ability of dentin coating using adhesive resin systems

Area of Science:

• Dental Materials Science
• Biomaterials Engineering
• Restorative Dentistry

Background:

• Dentin sealing is crucial for protecting the pulp from oral environmental stimuli.
• Adhesive resin systems offer potential for enhancing dentin sealing.
• Understanding the efficacy of these systems is vital for clinical application.

Purpose of the Study:

• To assess the sealing ability of dentin coating using adhesive resin systems.
• To verify the potential of dentin coating in protecting dentin/pulp from oral stimuli.
• To evaluate the impact of different adhesive resin systems on dentin sealing.

Main Methods:

• 15 extracted human premolars were prepared and divided into three groups.
• Dentin surfaces were coated with one of three adhesive resin systems (All-Bond 2, Clearfil Liner Bond II, Super-Bond D-Liner).
• Electrical resistance and thermal diffusion were measured before and after coating, and after storage in saline.

Main Results:

• Dentin coating significantly increased electrical resistance by 3-185 times.
• Thermal diffusion through dentin was significantly reduced after coating.
• Pulp chamber temperature changes decreased from 2-5°C to 0.3-0.5°C after coating.

Conclusions:

• Adhesive resin systems effectively seal dentin, significantly enhancing its electrical resistance.
• Dentin coating with these systems provides substantial protection against thermal stimuli.
• These findings support the use of adhesive resin systems for dentin/pulp protection.