Which term means replacing the base material to restore fit of a denture?

Which term means replacing the base material to restore fit of a denture?

• A. Reline
• B. Rebase
• C. Interim denture
• D. Root canal

Answer: (B)

Rebasing means replacing the base material of a denture to restore its fit. This process involves removing the old acrylic base and creating a new one while keeping the denture teeth in their original positions, so the bite and tooth arrangement remain the same but the foundation is renewed to better adapt to changing tissues. This differs from relining, where only a layer of material is added to the tissue-facing surface to improve contact without replacing the entire base. An interim denture is a temporary prosthesis used during healing or transition, not specifically about renewing the base of an existing denture. A root canal is a tooth pulp treatment and has no relation to denture bases.

Rebasing means replacing the base material of a denture to restore its fit. This process involves removing the old acrylic base and creating a new one while keeping the denture teeth in their original positions, so the bite and tooth arrangement remain the same but the foundation is renewed to better adapt to changing tissues. This differs from relining, where only a layer of material is added to the tissue-facing surface to improve contact without replacing the entire base. An interim denture is a temporary prosthesis used during healing or transition, not specifically about renewing the base of an existing denture. A root canal is a tooth pulp treatment and has no relation to denture bases.