intraoral scanner
Also written as: IOS — Intraoral Scanner
A handheld device used chairside to capture three-dimensional optical impressions of teeth, soft tissues, and existing restorations as digital data files.
Full Definition
An intraoral scanner (IOS) uses structured light or laser triangulation technology to create a highly accurate three-dimensional digital model of the oral environment, replacing traditional elastomeric impressions for many indications. The resulting STL or proprietary file format is transmitted electronically to the laboratory for CAD design. Editors will encounter 'intraoral scanner,' 'IOS,' and brand names (Trios, iTero, CEREC Omnicam) in case reports, review articles, and product copy. The preferred spelling is 'intraoral' (no hyphen) in most dental style guides, though 'intra-oral' remains in circulation.
Usage
Usage note: Prefer 'intraoral' (no hyphen) per current ADA and most dental journal style guides. Expand 'IOS' on first use.
In Context
- "The clinician used an intraoral scanner to capture the preparation margins before transmitting the file to the laboratory." — Clinical Protocol Document
- "The review article inconsistently used 'intra-oral scanner' and 'intraoral scanner'; the editor standardised to 'intraoral scanner' per ADA style." — Journal Article Copyediting