GV Black's principles indicate that restorations should minimize damage to the remaining tooth structure.

• A. No, they require removing more tooth structure
• B. Yes, to preserve remaining tooth structure
• C. They mandate crowns in all cases
• D. They discourage margins entirely

Answer: (B)

Preservation of tooth structure is the guiding idea here. GV Black’s principles emphasize removing only what is necessary to eliminate decay and create a sound, retentive preparation while keeping as much of the healthy tooth as possible. This preserves strength, reduces the risk of fracture, and supports long-term tooth vitality and restoration success. So the best answer is the one that states restorations should be done to preserve the remaining tooth structure.

Think about the other ideas: removing more tooth structure than needed weakens the tooth and undermines longevity; mandating crowns in all cases is an overreach and not indicated for every situation; margins are essential for sealing and proper restoration placement, so discouraging margins entirely would compromise function and hygiene. In short, the correct stance is to minimize damage and preserve what’s left.