Implant Collar
The coronal portion of an implant body that interfaces with surrounding crestal bone and soft tissue, often featuring a distinct surface texture or machined finish.
Full Definition
The implant collar is the uppermost segment of the implant fixture, positioned at or just below the crestal bone level. Its surface design—machined (smooth) or roughened—directly influences crestal bone maintenance and soft-tissue attachment. A machined collar was historically favoured to reduce bacterial adherence at the bone–soft tissue interface, while modern designs increasingly use micro-roughened collars to promote coronal bone retention. Editors should note that 'collar' in this context is distinct from the 'transmucosal collar,' which refers specifically to the abutment component traversing soft tissue.
Usage
Usage note: Always specify 'implant collar' rather than plain 'collar' to avoid confusion with abutment components in mixed prosthetic–surgical texts.
In Context
- "The manuscript described a machined implant collar intended to minimise crestal bone resorption in the first year post-placement." — Peer-reviewed clinical article
- "The editor queried whether 'collar' referred to the implant body or the abutment component—context confirmed it was the implant collar." — Copy-editing query log