bundle bone

bundle bone
one of the two types of bones composing the alveolar bone, so called because of the continuation into it of the principal fibers of the periodontal ligament. Large amounts of more calcified cementing substance render bundle bone more resistant to x-rays than surrounding bones; therefore it appears on dental radiographs as a thin radiopaque line (hence the synonym lamina dura). Called also lamellated b.

Medical dictionary. 2011.

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