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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This page was last edited on 27 Octoberat J Dent Child ; How to cite this article. At the 1-week postoperative appointment, the patient was evaluated clinically, although no significant signs and symptoms were revealed.

Sequesttrum significant medical condition was reported. An unusual eruption sequestrum. It is usually associated with the permanent mandibular first molar 1,3,as described in the patient of this case.

ES may also be retained by tissue covering the distal marginal ridge of an erupting tooth 2. 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. From Wikipedia, the free encyclopedia.


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. In most cases, the small bone fragments are absorbed completely prior to eruption of the molar. J Clin Pediatr Dent ; 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.

The position of this spicule overlies directly the central occlusal fossa, but within the soft tissue 3. Although ES is rare, it is important to describe its clinical and histological findings for helping clinicians diagnose this condition and updating microscopic descriptions. Signs of necrosis were found on the periphery.

Eruption sequestrum–case report and histopathological findings.

Ann Acad Med Singapore ; Please help improve this article by adding citations to reliable sources. If seen radiographically before tooth eruption, its intraoral appearance may be predicted 1.

Bone and joint disease M80—M94squestrum There was neither history of oral-facial trauma nor abnormalities upon extraoral examination. The treatment plan included surgical removal of this fragment. Na periferia, sinais de necrose foram evidenciados.

ES consists of a small irregular bone spicule, but it can also correspond to the occlusal anatomy of teeth 2. Thus further investigations should be performed to elucidate its microscopic aspects.


Spongy osseous tissue with an inflammatory cell infiltrate and empty lacuna-like spaces were also identified, in accordance to similar preliminary findings 7. Thus, a small osseous fragment can occasionally separate from the contiguous bone and emerge through the alveolar bone.

Unsourced material may be challenged and removed. The extracted fragment was preserved in formalin for 72 h and submitted to histological processing for microscopic analysis.

Periapical radiograph did not show adequately this fragment. In addition, Maki et al. The so-called eruption sequestrum.

eruption sequestrum

Within the bone itself, the haversian canals become blocked with scar tissue, and the bone becomes surrounded by thickened periosteum. The pathological process is as follows:. All the contents of this journal, except where otherwise noted, is licensed under a Creative Sequestrmu Attribution License.

Microscopic examination revealed large trabeculae with empty lacunae and a minimal amount of existing spongy bone consisting of acute inflammatory cells neutrophils. Services on Demand Journal.