Final answer:
The correct statement regarding dental implants is that they can prevent bone loss and gum recession, do not require alteration of adjacent teeth, and can support both bridges and dentures.
Step-by-step explanation:
The correct statement about dental implants is that they can prevent the bone loss and gum recession that often accompany bridgework and dentures. Unlike traditional bridges, dental implants do not require the alteration of adjacent teeth as they are surgically inserted directly into the jawbone, where they serve as a sturdy foundation for replacement teeth.
This process preserves the health of the adjacent teeth and maintains the integrity of the jawbone by stimulating bone growth, which can otherwise deteriorate when teeth are missing. Furthermore, while dental implants can be initially more expensive than a conventional bridge, they are a long-term investment in oral health and can support both bridges and dentures effectively.