We treated a case of eruption sequestrum in an 8-year 1-month old boy. The patient first came to our clinic with a chief complaint of discomfort in the mandibular. The literature relating to so-called eruption sequestra is reviewed. Two cases in which there were calcified fragments adjacent to the crowns of all four first. Eruption Sequestrum is an unusual disturbance, which consists of fragments of calcified mass overlying the crown of erupting permanent mandibular molar teeth .

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Bone and joint disease M80—M94— As its early recognition is important for preventing a future inadequate surgical intervention, the eruphion was removed surgically in this patient, as in other cases 2. Unsourced material may be challenged and removed.

Due to the avascular nature of this bone, antibiotics which travel to sites of infection via the bloodstream poorly penetrate these tissues, hence the difficulty in treating chronic osteomyelitis. A minimal amount of existing spongy bone consisted of acute inflammatory cells infiltrate neutrophils. This paper reports a case of unilateral eruption sequestrum in a 7-year-old Brazilian boy and describes its histopathological findings.

Views Read Edit View sequesrtum. The extracted fragment was preserved in formalin for 72 h and submitted to histological processing for microscopic analysis. Within the bone itself, the haversian canals become blocked with scar tissue, and the bone becomes surrounded by thickened periosteum.

Eruption sequestrae – three case reviews. Openings in this involucrum allow debris and exudates including pus to pass from the sequestrum via sinus tracts to the skin.

The sequestra are surrounded by sclerotic bone which is relatively avascular without a blood supply. Na periferia, sinais de necrose foram evidenciados.

Microscopic examination revealed large trabeculae with empty lacunae and a minimal amount of existing spongy bone consisting of acute inflammatory cells neutrophils. Although previously thought to have little clinical significance 1ES may retain biofilm accumulation and lead to pericoronitis, localized swelling, discomfort during mastication, and demineralization or dental caries if it remains for a prolonged time 2. J Dent Child ; After completion of the treatment, follow-up visits were scheduled every 6 months for monitoring dental plaque control as well as for clinical and radiographic assessment Fig.


Priddy RW, Price C. Eruption sequestrum ES is an uncommon condition first reported as an osseous fragment overlying the crown of an erupting permanent molar prior to or immediately after the emergence of the erution tips through the oral mucosa 1.

Osteitis fibrosa cystica Brown tumor. However, no signs of viable bone were evident throughout the specimen.

This can occur due to reduction of osteoclast activity and of bone resorption mediated by dental ssquestrum during tooth eruption caused by apoptosis of reduced enamel epithelium 4.

This article does not cite any sources. Apoptosis of the reduced enamel epithelium and its implications for bone resorption during tooth eruption.

In addition, Maki et al. Figures 1 to 3 illustrate the clinical and histopathological features of the case.

eruption sequestrum

The position of this spicule overlies directly the central occlusal fossa, but within the soft tissue 3. In most cases, the small bone fragments are absorbed completely prior to eruption of the molar. Informed written consent was obtained from the patient’s mother and this report was approved by the institutional Ethics Committee Protocol The eruptkon process is as follows:. No significant medical condition was reported.

Spongy osseous tissue with an eurption cell infiltrate and empty lacuna-like spaces were also identified, in accordance to similar preliminary findings 7. Thus further investigations should be performed to elucidate its microscopic aspects. Eruption sequestra in children. Although ES is rare, it is important to describe its clinical and histological findings for helping clinicians diagnose this condition and updating microscopic descriptions.

Thus, a small osseous fragment can occasionally separate from the contiguous bone and emerge through the alveolar bone. A biopsy of the area was excised under local anesthesia.


The histological diagnosis was ES Fig. Osteolysis Hajdu-Cheney syndrome Ainhum. Br Dent J ; At the same time as this, new bone is forming known as involucrum. Please help improve this article by adding citations to reliable sources.

There was neither history of pain nor evidence of dental caries or abnormality in other soft tissues. ES may also be retained by tissue covering the distal marginal ridge of an erupting tooth 2.

In an unusual case of ES, the specimen consisted of a small irregular calcified mass, composed of dentin and covered in areas by fragments of bacteria-infected cementum 3.

Ann Acad Med Singapore ; The microscopic analysis showed non-viable bone tissue of large trabeculae with empty lacunae, evidenced by lack of osteocytes in the lacunae.

Eruption sequestrum | definition of eruption sequestrum by Medical dictionary

Periapical radiograph did not show adequately this fragment. December Learn how and when to remove this template message.

ES is usually observed at the time of eruption of the mandibular first molars, but it has been noted occurring with maxillary first molars and mandibular second molars 1,2. Ischaemia Avascular necrosis Osteonecrosis of the jaw Algoneurodystrophy Hypertrophic pulmonary osteoarthropathy Nonossifying fibroma Pseudarthrosis Stress fracture Fibrous dysplasia Monostotic Polyostotic Skeletal fluorosis bone cyst Aneurysmal bone cyst Hyperostosis Infantile cortical hyperostosis Osteosclerosis Melorheostosis Pycnodysostosis.

Eruption sequestrum is an uncommon disturbance in eruption and consists of small fragments of calcified tissue overlying the crowns of erupting permanent molar teeth, especially at the time of eruption of the mandibular first molars. Bone fractures Gross pathology. ES is a mass coronally of the erupting tooth with broader borders 3. Retrieved from ” https:

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