The Retention Effect of Resin-Based Desensitizing Agents on Hypersensitivity-A Randomized Controlled Trial

Area of Science:

• Dental Materials Science
• Biomaterials Engineering
• Clinical Dentistry

Background:

• Increasing availability of dental materials for hyperesthesia desensitization.
• Lack of studies on the retreatment duration and adherence rates of desensitizers.

Purpose of the Study:

• To investigate the adhesion rates of resin-based desensitizers over time.
• To compare a conventional desensitizer with a novel agent containing C-MET and MDCP.

Main Methods:

• Application of colored conventional and novel desensitizers to premolar and molar surfaces.
• Weekly measurement of desensitizer area using oral photographs.
• Statistical analysis of adhesion rates with 95% confidence intervals.

Main Results:

• Both desensitizers showed less than 10% adherence after 4 weeks, with minimal sealing effect.
• Adherence rates were significantly higher on the buccal side of the maxilla compared to the lingual side.
• The desensitizer containing C-MET and MDCP demonstrated significantly higher adhesion rates than the conventional agent.

Conclusions:

• Conventional and novel desensitizers require monthly follow-ups and reevaluation due to poor long-term adherence.
• The novel monomer in the C-MET and MDCP desensitizer significantly improved adhesion ability.
• Further research into novel monomers is suggested for enhanced dental desensitizer efficacy.