Dental Which of the following should be done in case of unbounded amalgam restoration before application of copal varnish? A Applied after removal of smear layer only B Smear layer left intact C Smear layer is modified D Dentin desensitiser is applied 💡 Explanation Which of the following should be done in case of unbounded amalgam restoration before application of copal varnish? ✓ Correct Answer: D. Dentin desensitiser is applied