Pericoronitis
Pronunciation: peh-ree-ko-ro-NY-tis
Inflammation of the soft tissue overlying a partially erupted tooth, most commonly a mandibular third molar, which presents radiographically as widening of the follicular space.
Full Definition
Pericoronitis is diagnosed clinically and confirmed radiographically when the pericoronal space around an incompletely erupted tooth appears widened or when bone resorption is evident at the distal aspect of the tooth. On radiographs, the pericoronal follicle may appear enlarged, raising the differential diagnosis of a dentigerous cyst. Editors encountering this term should note that it is a single unhyphenated word, always lower case as a common noun, and should not be confused with 'pericoronal radiolucency', which describes only the radiographic sign. The term originates from Greek/Latin roots ('peri-' = around, 'corona' = crown, '-itis' = inflammation).
Usage
Usage note: One word, no hyphen. Lower case unless beginning a sentence. Distinguish from the radiographic sign 'pericoronal radiolucency' in reports.
In Context
- "The radiograph showed a widened pericoronal space consistent with pericoronitis of the lower-right wisdom tooth." — General dental practice referral letter
- "Pericoronitis is distinguished from a dentigerous cyst by clinical presentation as well as radiographic measurement of the follicular space." — Oral surgery case report