Retentive grooves of a proximal box in a class II cavity prepared for amalgam should be:
💡 Explanation
Retentive grooves of a proximal box in a class II cavity prepared for amalgam should be:
✓ Correct Answer: C. Elongated and rounded in dentine at the buccoaxial and linguoaxial Line angles extending from the gingival wall to the axiopulpal line angle
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