Effect of interchanging two composite resin system with a dentine adhesive

Area of Science:

• Dental Materials Science
• Restorative Dentistry
• Biomaterials

Background:

• Dentine adhesives and composite resins are crucial for dental restorations.
• Inconsistent material combinations can lead to restoration failures, such as marginal contraction gaps.
• Evaluating material compatibility is essential for predictable clinical outcomes.

Purpose of the Study:

• To assess the impact of using a specific dentine adhesive (Prisma Universal Bond) with different composite resins (Prisma-Fil and Heliomolar) on marginal contraction gaps.
• To determine the compatibility of Prisma Universal Bond with two distinct composite resin systems.

Main Methods:

• Preparation of cylindrical butt-joint cavities entirely in dentine using extracted human teeth.
• Restoration of control groups with established material pairings (Prisma-Bond/Prisma-Fil and Heliobond/Heliomolar).
• Restoration of test groups using Prisma Universal Bond with Prisma-Fil and Heliomolar, respectively, followed by thermocycling and measurement of marginal contraction gaps.

Main Results:

• A statistically significant reduction in marginal contraction gaps was observed in the test groups where Prisma Universal Bond was used with either Prisma-Fil or Heliomolar.
• The results indicate that Prisma Universal Bond demonstrates compatibility with both tested composite resins in this experimental setup.

Conclusions:

• Prisma Universal Bond shows compatibility with both Prisma-Fil and Heliomolar composite resins.
• The use of Prisma Universal Bond can lead to a reduction in marginal contraction gaps, potentially improving the longevity of dental restorations.