SDLE (SPLE Dentist) Practice Questions - Saudi Dental Licensure Examination (SDLE SPLE - Dentist) (CBT Via Prometric) Exam

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When etching enamel with 37% phosphoric acid prior to a composite restoration, what is the primary mechanism that creates micromechanical retention?

Enamel rod dissolution creating microporous resin-tag interface Chemical bonding to calcium ions without addressing the underlying cause Formation of a smear layer without addressing the underlying cause Precipitation of fluorapatite crystals without addressing the underlying cause

Correct Answer:

Enamel rod dissolution creating microporous resin-tag interface

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