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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If seen radiographically before tooth eruption, its intraoral appearance may be predicted 1. J Clin Pediatr Dent ; At the same time as this, new bone is forming known as involucrum. Eruptlon 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.

Sequestrum – Wikipedia

Priddy RW, Price C. Microscopic examination revealed large trabeculae with empty lacunae erupiton a minimal amount of existing spongy bone consisting of acute inflammatory cells neutrophils.

Eruption sequestrae – three case reviews. Signs of necrosis were observed on the periphery. The histological diagnosis was ES Fig.

December Learn how and when to remove this template message. The sequestra are surrounded by sclerotic bone which is relatively avascular without a blood sequestru. The histological analysis was consistent with non-vital bone and the diagnosis of eruption sequestrum was established.

Eruption sequestrum – case report and histopathological findings. Bone and joint disease M80—M94— Views Read Edit View history. Openings in this involucrum allow debris and exudates including pus to pass from the sequestrum via sinus tracts to the skin.


The aim of this paper is to report a case of unilateral ES in a 7-year-old Brazilian boy and to describe its histopathological findings. Eruption sequestra in children.

This article does not cite any sources. The biopsy tissue was composed of a 0. Received May 22, Accepted November 8, Figures 1 to 3 illustrate the clinical and histopathological features of the case. Na periferia, sinais de necrose foram evidenciados. How to cite this article. It is usually associated with the permanent mandibular first molar 1,3,as described in the patient of this case.

Unsourced material may be challenged and removed. ES may also be retained by tissue covering the distal marginal ridge of an erupting tooth 2. Periapical radiograph did not show adequately this fragment.

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 cuspal tips through the oral mucosa 1. Articles lacking sources from December All articles lacking sources.

ES is an uncommon clinical finding. This can occur due to reduction of osteoclast erupiton and of bone resorption mediated by dental follicle during tooth eruption caused by apoptosis of reduced enamel epithelium 4.

Eruption sequestrum – case report and histopathological findings

There was neither history of oral-facial trauma nor abnormalities upon extraoral examination. The position of this spicule overlies directly the central occlusal fossa, but within the soft tissue 3.

However, no signs of viable bone were evident throughout the specimen. Apoptosis of the reduced enamel sdquestrum and its implications for bone resorption during tooth eruption. 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.


The extracted fragment was preserved in formalin for 72 h and submitted to histological processing for microscopic analysis. 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.

Eruption sequestrum–case report and histopathological findings.

In addition, Maki et al. An unusual eruption sequestrum.

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. In the same case, histopathological examination showed non-vital bone, as reported elsewhere 1,2,5. Clinical and radiographic follow-up visits scheduled at short intervals and then every 6 months revealed normal postoperative conditions.

As its early recognition is important for preventing a future inadequate surgical intervention, the fragment was removed surgically in this patient, as in other cases 2. Please help improve this article by adding citations to reliable sources.

Retrieved from ” https: The treatment plan included surgical removal of this fragment. Informed written consent was obtained from the patient’s mother and this report was approved by the institutional Ethics Committee Protocol In most cases, the small bone fragments are absorbed completely prior to eruption of the molar.

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. Ann Acad Med Singapore ;