Abutment vs. Retainer
- In CDT codes, "abutment" refers to the piece of hardware that attaches to a dental implant, and is used to anchor a crown or other prosthesis.
- In the past, this word was used for teeth that are the anchors for fixed bridges. Many dental offices still use the term in this manner. This can lead to confusion, and possibly insurance claims problems.
- In CDT codes, "retainer" refers to a tooth that is anchoring a fixed bridge.
- There is an orthodontic appliance called a retainer that is completely unrelated to crown/bridge usage of the term.