Dental The objectives for the extension of the proximal margins are all except: A Include all caries lesions, defects or existing restorative materials B Create 90-degree cavosurface margins C Establish not more than 0.5 mm clearance with the adjacent proximal surface facially, lingually and gingivally D The location of the final proximal margins should be established with No.245 bur 💡 Explanation The objectives for the extension of the proximal margins are all except: ✓ Correct Answer: D. The location of the final proximal margins should be established with No.245 bur