Restorative & Materials · single question
What is the primary advantage of using a sectional matrix (e.g., Palodent) compared to a circumferential matrix?
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Correct answer: D. Better contact in the buccolingual direction
- A. Visualization is not the primary advantage — sectional matrices are chosen for proximal contact quality.
- B. Occlusal-gingival adaptation is a feature of both matrix systems; it is not the primary advantage of sectional matrices.
- C. Mesiobuccal-distolingual contact is not the primary advantage of sectional matrices.
- D. Sectional matrices (Palodent, V3) are designed to create tighter, more physiologically contoured interproximal contacts in the BUCCOLINGUAL dimension. They provide better proximal contact tightness compared to circumferential (Tofflemire) matrices, which tend to create flatter, less contoured contact areas.
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