Intermediate
Technical
In the Industry Vocabulary Test
fenestration
A localized defect in the facial or lingual bone plate that exposes the root surface.
Full Definition
Fenestration is a bony defect where the facial or lingual cortical bone is absent, creating a window-like opening that exposes the tooth root surface. This condition can occur naturally due to thin bone anatomy, tooth malposition, or trauma. It may also be created surgically to access impacted teeth or remove pathology. Fenestrations can compromise periodontal health and complicate procedures like extractions or implant placement, often requiring bone grafting for repair.
Usage
Usage note: Distinguish from 'dehiscence' which refers to marginal bone loss exposing the root.
In Context
- "CBCT imaging revealed a fenestration defect on the facial aspect of the canine root." — Radiographic interpretation
- "The surgical fenestration allowed access to the unerupted tooth for orthodontic exposure." — Oral surgery report
Also known as
bone fenestration
cortical defect
Contrasted with
intact cortical plate
Don't confuse with
perforation
bone dehiscence