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[Bonding compatibility between adhesive systems and composite resins]
L Giachetti1, D Scaminaci Russo, D Landi
1Insegnamento di Materiali Dentar, Università degli Studi di Firenze, Firenze, Italy. l.giachetti@odonto.unifi.it
Minerva Stomatologica
|July 23, 2003
Summary
Bonding compatibility between dental adhesives and composites varies. Self-polymerizing composites showed reduced compatibility with one-component adhesives, particularly Scotchbond 1, but Excite DSC performed well.
Area of Science:
- Dental Materials Science
- Polymer Chemistry
- Biomaterials Engineering
Context:
- Dental restorations increasingly utilize composite resins and adhesive systems.
- Understanding bonding compatibility is crucial for long-term restoration success.
- Two-step total-etch adhesives and various composite activation methods present potential compatibility challenges.
Purpose:
- To analyze the bonding compatibility between photo- and self-polymerizing composite resins and two-step total-etch (one-component) adhesive systems.
- To evaluate the influence of different activation methods on adhesive-composite compatibility.
- To investigate the impact of adhesive and composite composition on chemical compatibility.
Summary:
- Thirty extracted molars were prepared, bonded with Scotchbond 1, Excite, or Excite DSC adhesives, and restored with photopolymerized Tetric Ceram or chemically activated Luxacore composite resins.
- Shear bond strength tests and Scanning Electron Microscopy (SEM) analysis were performed to assess bonding compatibility and fracture modes.
- Results indicated reduced bonding compatibility between one-component adhesives and self-polymerizing composites, with Excite DSC showing better compatibility.
Impact:
- Adhesive-composite incompatibility is influenced by the activation methods of both the adhesive and composite systems.
- Chemical compatibility is a complex interplay between the adhesive and composite formulations.
- Findings guide the selection of compatible adhesive and composite materials to optimize dental restoration longevity.