Cephalometric Radiograph
Pronunciation: sef-uh-loh-MET-rik RAY-dee-oh-graf
A standardized lateral skull X-ray used in orthodontic diagnosis to measure skeletal and dental relationships.
Full Definition
A cephalometric radiograph (commonly called a 'ceph') is a standardized X-ray image of the skull taken in a fixed lateral or posteroanterior projection using a cephalostat to ensure reproducibility. Orthodontists use a process called cephalometric tracing and analysis to measure angular and linear relationships between bony landmarks, teeth, and soft tissue. The term is frequently abbreviated to 'ceph' in clinical shorthand. Editors should ensure the full form is used on first reference in formal reports and that the adjective 'cephalometric' is not confused with 'cephalic' (relating to the head generally).
Usage
Usage note: Do not abbreviate to 'ceph' on first reference in formal documents. 'Cephalometric' and 'cephalic' are distinct; do not interchange them.
In Context
- "Pre-treatment cephalometric radiographs were obtained and analyzed using the Steiner method." — Orthodontic diagnosis report
- "The cephalometric radiograph revealed a skeletal Class III pattern with mandibular prognathism." — Referral letter to oral and maxillofacial surgeon