Bonding Durability of Four Adhesive Systems

Area of Science:

• Dental Materials Science
• Adhesive Dentistry
• Biomaterials Engineering

Background:

• Dental adhesive systems are crucial for the longevity of restorations.
• Assessing the long-term durability of these systems under simulated oral conditions is essential.

Purpose of the Study:

• To compare the durability of four dental adhesive systems: Scotch Bond Multipurpose (SBMP), Single Bond (SB), Clearfil-SE bond (CSEB), and All-Bond SE (ABSE).
• To evaluate microtensile bond strength (MTBS) and microleakage after six months of water storage.

Main Methods:

• 128 human third molars were used to test four adhesive systems.
• Microtensile bond strength and microleakage were assessed after one day and six months of water storage.
• Statistical analysis included ANOVA, Tamhane's test, Kruskal-Wallis, Dunn, Mann Whitney, and Wilcoxon tests.

Main Results:

• Single Bond exhibited the highest bond strength, while All-Bond SE showed the lowest.
• All-Bond SE and Scotch Bond Multipurpose experienced significant bond strength reduction after six months.
• Microleakage varied by margin type and duration, with some systems showing increased leakage over time.

Conclusions:

• Clearfil SE bond achieved the highest microtensile bond strength and favorable sealability.
• Water storage did not affect the microleakage of self-etch adhesives at the gingival margin or the MTBS of Clearfil SE bond and Single Bond.