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[The dentin bonding of selected adhesive cement systems]
1Abteilung für Kronen-Brücken-Prothetik, Teilprothetik und zahnärztliche Materialkunde, Universität Zürich.
Schweizer Monatsschrift Fur Zahnmedizin = Revue Mensuelle Suisse D'Odonto-Stomatologie = Rivista Mensile Svizzera Di Odontologia E Stomatologia
|January 1, 1994
Summary
This study evaluated dentin bonding agents (DBAs) and composite resins under simulated physiological conditions. AllBond2 showed slightly better bond strength with Dual Cement, while A.R.T. Bond combinations were less effective.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Adhesive Dentistry
Background:
- Dentin bonding agents (DBAs) are crucial for dental restorations.
- Understanding DBA performance under physiological stress is essential.
- Evaluating composite luting resins' compatibility with DBAs is necessary.
Purpose of the Study:
- To assess the shear bond strength of two DBAs with different composite luting resins.
- To simulate intra-pulpal pressure and thermal cycling conditions on dentin-DBA-resin interfaces.
- To compare the efficacy of DBA and luting resin combinations.
Main Methods:
- In vitro testing of shear bond strengths.
- Simulated vital human dentin using intrapulpal pressure (19.6 cm/36 cm H2O).
- Thermal cycling (1500 cycles, 5°C/55°C) to mimic oral environment fluctuations.
- Simultaneous light curing of bonding agent and composite resin.
Main Results:
- AllBond2 demonstrated slightly superior bond strength when combined with Dual Cement compared to other resins.
- A.R.T. Bond exhibited suboptimal bond strength across all tested luting resin combinations.
- Both DBAs were tested under simulated intrapulpal pressure and thermal stress.
Conclusions:
- The choice of composite luting resin significantly impacts DBA performance.
- AllBond2 shows promise with specific luting resins like Dual Cement for dentin bonding.
- A.R.T. Bond requires further investigation or modification for improved clinical efficacy.