Periradicular
Pronunciation: per-ee-ruh-DIK-yoo-lar
Relating to or situated around the root of a tooth, used to describe pathological conditions, tissues, or radiographic findings in the area surrounding the tooth root.
Full Definition
The term 'periradicular' broadly describes the region encompassing the tissues immediately surrounding a tooth root, including the periodontal ligament, alveolar bone, and cementum. It is commonly used in endodontic contexts to qualify lesions (e.g. periradicular abscess, periradicular periodontitis) detectable on radiographs or during surgical exploration. Editors should note that 'periradicular' is preferred over 'periapical' when describing pathology that may extend beyond the apex to the lateral root surface. However, in common clinical usage the two terms are frequently used interchangeably, and editors reviewing dental records should flag this inconsistency. The term appears in endodontic reports, radiographic reports, and oral surgery referrals.
Usage
Usage note: 'Periradicular' is the broader, more accurate term when pathology is not confined to the apex; 'periapical' strictly denotes the area at the tooth tip. Flag inconsistent usage in clinical documents.
In Context
- "The radiograph revealed a well-defined periradicular radiolucency at the apex of the upper-left central incisor, consistent with a periradicular cyst." — Endodontic radiographic report
- "Periradicular surgery was indicated following failure of non-surgical root canal treatment to resolve the lesion." — Oral surgery referral letter