OMSB Dentist Practice Questions - OMSB Licensing Examination - Dentist (CBT Via Prometric) Exam

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A Class II composite restoration on a premolar repeatedly shows an open or weak proximal contact after placement. Which technique most directly improves the proximal contact tightness?

Using a flat circumferential metal matrix band with no wedge Increasing the curing time only Using a sectional matrix system with a separating ring and wedge Bulk-filling without any matrix

Correct Answer:

Using a sectional matrix system with a separating ring and wedge

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