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Class II Composite Restoration — NDEB AFK MCQ

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EasyRestorative DentistryClass II Composite RestorationNDEB AFK

When performing a Class II composite restoration on a mandibular premolar, which matrix system is most appropriate to achieve proper proximal contact?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: A — Sectional matrix with a ring

A sectional matrix system with a separation ring (e.g., Palodent, Composi-Tight) is the preferred matrix for Class II composite restorations. The ring provides separation force, creating a tight proximal contact, while the contoured sectional matrix produces proper anatomical contour. Tofflemire bands are primarily designed for amalgam restorations and tend to produce flat, poorly adapted contacts with composite.

Reference: Heymann – Sturdevant's Art and Science of Operative Dentistry, 7th ed., 2019