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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Spongy osseous tissue with an inflammatory cell infiltrate and empty lacuna-like spaces were also identified, erupion accordance to similar preliminary findings 7. Rarely, a sequestrum may turn out to be an osteoid osteomaa rare tumor of the bone. ES is an uncommon clinical finding. ES may also be retained by tissue covering the distal marginal ridge of an erupting tooth 2.

ES is usually observed at the time of eruption of the mandibular eruuption molars, but it has been noted occurring with maxillary first molars and mandibular second molars 1,2.

This paper reports a case of unilateral eruption sequestrum in a 7-year-old Brazilian boy and describes its histopathological findings.

Microscopic seuqestrum revealed large trabeculae with empty lacunae and a minimal amount of existing spongy bone consisting of acute inflammatory cells neutrophils. Please help improve this article by adding citations to reliable sources.


However, when the fragments are large or the eruption speed is slow, small bone fragments on the occlusal surface remain unresorbed and exposed to the mucosa prior to molar eruption, which forms ES 1. Eruption sequestrum – case report and histopathological findings.

Eruption sequestrum – case report and histopathological findings

In most cases, the small bone fragments are absorbed completely prior sequesrtum eruption of dequestrum molar. The extracted fragment was preserved in formalin for 72 h and submitted to histological processing for microscopic analysis. Although ES is rare, it is important to describe its clinical and histological findings for helping clinicians diagnose this condition and updating microscopic descriptions.

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. Br Dent J ; Bone and joint disease M80—M94— The histological analysis was consistent with non-vital bone and the diagnosis of eruption sequestrum was established.

It is usually associated with the permanent mandibular first sequrstrum 1,3,as described in the patient of this case. From Wikipedia, the free encyclopedia. Within the bone itself, the haversian canals become blocked with scar tissue, and the bone becomes surrounded by thickened periosteum.

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At the 1-week postoperative appointment, the patient was evaluated clinically, although no significant signs and symptoms were revealed. Unsourced material may be challenged and removed. Bone fractures Gross pathology. Sewuestrum pathological process is as follows:.

The treatment plan included surgical removal of this fragment. In the same case, histopathological eryption showed non-vital bone, as reported elsewhere 1,2,5. This major occurrence in mandibular first molars can be due to these teeth with an ectopic path of eruption, with the mesial cusps at some stage lying mesial to the distal root of the second primary molar 3.


Signs of necrosis were found on the periphery. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.

Eruption sequestrum–case report and histopathological findings.

An unusual eruption sequestrum. Eruption seqiestrum – three case reviews. Periapical radiograph did not show adequately this fragment. This can occur due to reduction of osteoclast activity and of bone resorption mediated by dental follicle during tooth eruption caused by apoptosis of reduced enamel epithelium 4. If seen radiographically before tooth eruption, its intraoral appearance may be predicted 1.

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. It is a complication sequela of osteomyelitis.


The position of this spicule overlies directly the central occlusal fossa, but within the soft tissue 3. Osteolysis Hajdu-Cheney syndrome Ainhum. This page was last edited on 27 Octoberat