Which type of adhesive is used in the composite material for fixing brackets to the enamel?

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Prepare for the Orthodontics 5th Year SC Exam. Use flashcards, multiple choice questions, and detailed explanations for each question. Increase your confidence and readiness for the test with targeted study tools and resources!

Multiple Choice

Which type of adhesive is used in the composite material for fixing brackets to the enamel?

Explanation:
The essential idea is that bracket bonding to enamel relies on micromechanical retention created by the adhesive resin penetrating the roughened enamel. After acid etching, the enamel surface becomes porous, and the resin composite flows into these irregularities. When it sets, it forms resin tags that lock the bracket to the tooth, giving a strong mechanical bond. This is not about chemical bonding or welding; the acid prepares the surface and the adhesive provides the physical interlock. So the adhesive type used is mechanical bonding.

The essential idea is that bracket bonding to enamel relies on micromechanical retention created by the adhesive resin penetrating the roughened enamel. After acid etching, the enamel surface becomes porous, and the resin composite flows into these irregularities. When it sets, it forms resin tags that lock the bracket to the tooth, giving a strong mechanical bond. This is not about chemical bonding or welding; the acid prepares the surface and the adhesive provides the physical interlock. So the adhesive type used is mechanical bonding.

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