DANB General Chairside Practice Test

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Prepare for the DANB General Chairside Exam with interactive quizzes. Explore multiple choice questions, hints, and explanations to boost your readiness. Ace your test with confidence!

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What is the main reason a composite restoration stays bonded to a tooth?

Mechanical retention
Chemical bonding
Physical locking
Bonding

The correct answer is: Bonding

The main reason a composite restoration stays bonded to a tooth is due to bonding, which involves both mechanical and chemical aspects that contribute to the overall adhesion of the material. In the context of dental restorations, bonding refers to the use of bonding agents that create a strong interface between the composite material and the tooth structure. These agents often contain components that promote both micromechanical retention by penetrating the microscopic porosities of the tooth and chemical interactions that form strong bonds at the molecular level. This bonding process enhances the longevity and durability of the restoration, allowing it to withstand the forces of biting and chewing while preventing debonding over time. Effective bonding is critical in achieving a successful composite restoration that mimics the natural tooth structure in both aesthetics and function.