10-year clinical evaluation of a self-etching adhesive system

Area of Science:

• Dental Materials Science
• Clinical Dentistry
• Restorative Dentistry

Background:

• Self-etching adhesive systems offer simplified clinical application.
• Long-term clinical data on specific self-etching systems are crucial for evaluating their durability.

Purpose of the Study:

• To evaluate the 10-year clinical performance of the self-etching adhesive system, Clearfil Liner Bond 2.
• To assess restoration success based on pulpal response, marginal integrity, discoloration, retention, and secondary caries.

Main Methods:

• 87 restorations using Clearfil Liner Bond 2 were placed in 42 patients by two operators.
• Evaluations followed modified USPHS criteria at baseline and up to 10 years post-placement.
• Recall rates varied, with 50.6% at the 10-year assessment.

Main Results:

• No instances of pulpal sensitivity, retention loss, or secondary caries were observed throughout the 10-year period.
• At 10 years, 90.9% of restorations exhibited excellent marginal integrity (Bravo rating).
• 88.6% of restorations showed acceptable marginal discoloration (Bravo rating) at the 10-year mark.

Conclusions:

• Clearfil Liner Bond 2 exhibits excellent retention rates and pulpal response over a decade.
• While minor marginal changes occurred, they were not clinically significant according to USPHS criteria.
• The Clearfil Liner Bond 2 self-etching adhesive system is a clinically acceptable option for dental restorations up to 10 years.