Restorative & Materials · single question
The advantage of using a sectional matrix band (T-band or other sectional system) compared to a Tofflemire matrix in Class II restorations is:
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Correct answer: A. Better reproduction of the interproximal contact in the occluso-gingival direction
- A. Correct. Sectional matrix systems (e.g., Palodent, BiTine) are specifically designed to create better CONTACT in the occlusogingival dimension by using wedges and rings to press the matrix against the contact area. They create a more natural-shaped proximal contact compared to the circumferential Tofflemire matrix.
- B. Marginal ridge reproduction depends on technique rather than the specific matrix type chosen.
- C. Tofflemire matrix is typically faster to place; the sectional system requires more steps but produces better contacts.
- D. Buccal flare is managed by wedging and sectional placement, but this is not the primary advantage.
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