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Related Experiment Videos

Eruption sequestrum: x-ray microanalysis and microscopic findings.

K Maki1, T Ansai, I Nishida

  • 1Department of Pediatric Dentistry Kyushu Dental College, Kitakyushu, Japan. k-maki@kyu-dent.ac.jp

The Journal of Clinical Pediatric Dentistry
|June 2, 2005
PubMed
Summary
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Eruption sequestrum, a bone-like fragment, was found on a 12-year-old girl's erupting mandibular second molar. Histopathology confirmed necrotized cortical bone with a higher calcium-to-phosphorous ratio than normal bone.

Area of Science:

  • Dentistry
  • Oral Pathology
  • Pediatric Dentistry

Background:

  • Eruption sequestrum is a rare condition involving a fragment of bone interfering with tooth eruption.
  • This case highlights a unique presentation in a pediatric patient.

Observation:

  • A 12-year-old girl presented with an eruption sequestrum on the mandibular left second molar.
  • Intraoral examination revealed a hard, white, bone-like tissue fragment on the occlusal surface of the erupting tooth.

Findings:

  • Histopathological analysis identified the fragment as necrotized cortical bone.
  • Chronic inflammatory changes were noted in the adjacent gingiva.
  • X-ray microanalyzer revealed a high calcium to phosphorous ratio (3.63), exceeding that of normal bone.

Related Experiment Videos

Implications:

  • Understanding the nature of eruption sequestrum is crucial for pediatric dental management.
  • This case underscores the importance of histopathological examination for accurate diagnosis.
  • The altered mineral composition may offer insights into the pathogenesis of this condition.