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Eruption sequestrum--case report and histopathological findings.
Alexandra Mussolino de Queiroz1, Cristiane Tomaz Rocha, Lea Assed Bezerra da Silva
1Department of Pediatric Clinic, Ribeirão Preto Dental School, USP - University of São Paulo, Ribeirão Preto, SP, Brazil. amqueiroz@forp.usp.br
Brazilian Dental Journal
|January 23, 2013
Summary
Eruption sequestrum, a rare condition involving calcified tissue fragments on erupting molars, was diagnosed in a 7-year-old boy. Histopathology confirmed non-vital bone, consistent with this uncommon dental disturbance.
Area of Science:
- Oral Pathology
- Pediatric Dentistry
- Dental Histopathology
Background:
- Eruption sequestrum is an infrequent dental anomaly characterized by calcified tissue fragments obstructing erupting permanent molars.
- It predominantly affects mandibular first molars during their eruption phase.
Observation:
- A case report details a unilateral eruption sequestrum in a 7-year-old Brazilian boy.
- A 0.5 cm fragment of hard, irregular calcified tissue was excised from the occlusal surface of an erupting mandibular left first molar.
Findings:
- Microscopic examination revealed extensive trabeculae with empty lacunae and limited spongy bone infiltrated by neutrophils.
- Peripheral signs of necrosis indicated non-vital bone, confirming the diagnosis of eruption sequestrum.
Implications:
- This case highlights the histopathological features of eruption sequestrum in a pediatric patient.
- Successful management involved surgical excision, with favorable postoperative outcomes observed during follow-up.