LAMINA-DURA
Dentstudy Editorial Team1 min read
Updated 27 Sep 2026
⚡ High-Yield Summary
The lamina dura is a thin, dense, radio-opaque line of cortical bone that lines the normal tooth socket, appearing continuous with the cortical layer of the alveolar crest on radiographs. Formed by bundle bone where periodontal ligament (PDL) fibers attach, its continuity is a vital radiological indicator of periodontal and endodontic health.
LAMINA-DURA
Lamina-dura is a radiographic feature appears as a thin radiopaque line surrounding the roots of the teeth, which represents the alveolar bone proper.
Presence of intact lamina-dura around the apex of the tooth strongly suggestive of vital pulp.
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