Which term describes a tooth restoration that encases the visible portion of a tooth and is cemented in place?

Which term describes a tooth restoration that encases the visible portion of a tooth and is cemented in place?

• A. Crown
• B. Onlay
• C. Inlay
• D. Desensitizer

Answer: (A)

A crown is a full-coverage restoration that encases the entire visible portion of a tooth above the gum line and is cemented in place. This type of restoration provides strength and protection for a tooth that is heavily damaged, has had root canal therapy, or needs containment after extensive decay or fracture. Think of the other options to see why they don’t fit: an onlay covers one or more cusps and a portion of the chewing surface but not the entire visible portion; an inlay fits within the confines of the cusps and does not cover the tooth’s entire outer surface; a desensitizer is a medication used to reduce sensitivity, not a restoration. So the description matches a crown.

A crown is a full-coverage restoration that encases the entire visible portion of a tooth above the gum line and is cemented in place. This type of restoration provides strength and protection for a tooth that is heavily damaged, has had root canal therapy, or needs containment after extensive decay or fracture.

Think of the other options to see why they don’t fit: an onlay covers one or more cusps and a portion of the chewing surface but not the entire visible portion; an inlay fits within the confines of the cusps and does not cover the tooth’s entire outer surface; a desensitizer is a medication used to reduce sensitivity, not a restoration. So the description matches a crown.