J Korean Assoc Oral Maxillofac Surg.  2016 Aug;42(4):231-235. 10.5125/jkaoms.2016.42.4.231.

Benign cementoblastoma of the anterior mandible: an unusual case report

• Çalışkan A
• Karöz TB
• Sumer M
• Açıkgöz A
• Süllü Y

• KMID: 2350077
• DOI: http://doi.org/10.5125/jkaoms.2016.42.4.231

Abstract

A benign cementoblastoma, which is another name for a true cementoma, is a rare neoplasm that develops from odontogenic ectomesenchyme. It is characterized by a mineralized mass attached to the apex of the root produced by neoplastic cementoblasts. More than 75% of cases arise in the mandible, with 90% of them manifesting in the molar and premolar regions. This neoplasm occurs most commonly in children and young adults, with males being affected slightly more than females. Radiographically, the tumor is observed as a well-defined radiopaque mass that is fused to a tooth root and is surrounded by a radiolucent rim. The treatment of benign cementoblastoma consists of removal of the lesion and extraction of the affected tooth. This report presents an unusual case of benign cementoblastoma in a 31-year-old female, presenting as a densely mineralized mass seen at the apex of the impacted right mandibular canine tooth on radiographs.

Keyword

Odontogenic tumors; Cementoblastoma; Cuspid; Mandible

MeSH Terms

Adult
Bicuspid
Cementoma
Child
Cuspid
Dental Cementum
Female
Humans
Male
Mandible*
Miners
Molar
Odontogenic Tumors
Tooth
Tooth Root
Young Adult

Figure

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  Fig. 1 A. An axial cone-beam computed tomography (CBCT) image of the mandible shows a radiopaque mass in the region of the right canine tooth. B. CBCT image on the sagittal (oblique) plane shows the radiopaque mass fused to the impacted mandibular right canine tooth that was surrounded by a thin radiolucent rim. C. Three-dimensional view of the lesion area.

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  Fig. 2 A-C. Intraoperative photographs show the lesion being removed. D. Macroscopic appearance of the lesion.

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  Fig. 3 Histopathologic appearance shows dense, mineralized, cementum-like material and vascular soft tissue areas that consisted of cementoblasts (H&E staining, ×100).

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  Fig. 4 A, B. Axial three-dimensional images displaying the neoplasm. C. Fusion with the apex of the impacted right mandibular canine tooth.

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