Contemporary Clinical Dentistry
  Home | About us | Editorial board | Search
Ahead of print | Current Issue | Archives | Advertise
Instructions | Online submission| Contact us | Subscribe |


Login  | Users Online: 2986  Print this pageEmail this pageSmall font sizeDefault font sizeIncrease font size 

 Table of Contents  
Year : 2014  |  Volume : 5  |  Issue : 1  |  Page : 92-94  

Benign cementoblastoma: A rare case report with review of literature

Department of Oral Medicine and Radiology, Himachal Pradesh Government Dental College, Shimla, Himachal Pradesh, India

Date of Web Publication13-Mar-2014

Correspondence Address:
Neeta Sharma
Department of Oral Medicine and Radiology, Himachal Pradesh Government Dental College, Shimla - 171 001, Himachal Pradesh
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-237X.128679

Rights and Permissions

We present a rare case of radiopaque lesion with radiolucent rim in the right body of mandible, with history of extraction of involved tooth, which made diagnosis confusing unless pre-extraction intraoral periapical radiography radiograph was recovered, finally diagnosed as benign cementoblastoma. It was surgically managed, with no recurrence of the lesion more than 2 years of follow-up. Benign cementoblastoma is a rare, benign tumor of odontogenic ectomesenchymal origin, usually associated with roots of first mandibular molar.

Keywords: Cementoblastoma, true cementoma, tumor of ectomesenchymal origin

How to cite this article:
Sharma N. Benign cementoblastoma: A rare case report with review of literature. Contemp Clin Dent 2014;5:92-4

How to cite this URL:
Sharma N. Benign cementoblastoma: A rare case report with review of literature. Contemp Clin Dent [serial online] 2014 [cited 2022 Jun 30];5:92-4. Available from:

   Introduction Top

Cementoblastoma in the current World Health Organization classification of odontogenic tumor, is in the category of tumors of mesenchyme and/or odontogenic ectomesenchyme with or without odontogenic epithelium. [1] The lesion was first recognized by Noeberg in 1930. [2] The lesion is considered as the only true neoplasm of cementum origin. It generally occurs in young persons, comprises <1-6.2% of all odontogenic tumor and is characterized as being attached to the roots, most frequently associated with first permanent molar. [3] The majority of these tumor are radiopaque, but radiolucent tumor may occur in rare instances. Histologically, it presents as a well-circumscribed tumor composed of cementum like tissue surrounded by a fibrous capsule. The surgical enucleation en masse is the treatment of choice. The recurrence rate is 21.7-37.1%. [4]

   Case Report Top

This was a case report of a 16-year-old male patient who reported to the Department of Oral Medicine, GDC, Ahmedabad with the chief complaint of swelling and mild pain in the right side of the jaw since 6 months, with a history of extraction of 46 because of pain before 6 months in a private dental clinic. On clinical examination, there was diffuse bony hard swelling present in the right body of mandible with normal overlying skin. Intra-orally, there was diffuse bony hard swelling in 46 region with normal overlying mucosa and expanded buccal and lingual cortical plates [Figure 1]. Adjacent teeth were immobile and undisplaced. Radiological examination revealed a well-defined round radiopacity with radiolucent rim in the right body of mandible [Figure 2]. Mandibular occlusal radiograph revealed expansion of buccal and lingual cortical plates. He had pre-extraction intraoral periapical radiography (IOPA) radiograph of 46 region, which showed a well-defined radiopacity surrounded by radiolucent rim attached to roots of 46 [Figure 3]. The typical radiographic presentation of radiopacity attached to root with radiolucent rim suggested of benign cementoblastoma with differential diagnosis of hypercementosis, osteoblastoma, periapical cemental dysplasia and condensing osteitis. The lesion was surgically enucleated and submitted for histopathological examination. Histopathologically it showed a well-circumscribed tumor composed of cementum like tissue surrounded by a fibrous capsule [Figure 4]. The patient was followed-up for 2 years with no recurrence.
Figure 1: Intra-oral view showing diffuse swelling in right lower quadrant with missing 46 and expansion of buccal and lingual cortical plates

Click here to view
Figure 2: Right lateral oblique of mandible showing well defined radiopacity surrounded by radiolucent zone in body of mandible with missing 46

Click here to view
Figure 3: Pre-extraction radiograph showing radiopaque lesion attached to roots of 46

Click here to view
Figure 4: Microphotograph showing sheet of cementum like tissue with intervening loose fibrovascular connective tissue stroma

Click here to view

   Discussion Top

The presentation of this case was unusual as the patient presented with missing 46. The pre-extraction IOPA clearly showed the tumor attached to the roots. The presented case met the radiographic, surgical and histological criteria of benign cementoblastoma. The male to female ratio of the prevalence has been reported to be 2.1:1 with a mean age of 20.7 years. [5] Benign cementoblastoma is also reported in the maxillary sinus [6] and associated with deciduous [5] and unerupted permanent tooth [7] and multiple teeth. [8] Clinical sign and symptoms include expansion of bone, swelling and pain. The radiographic appearance of benign cementoblastoma is well-defined radiopacity with radiolucent zone. [5] Though it is a benign tumor, but aggressive behavior has been also reported. [2] Some cases reported in the literature exhibited signs of local aggressiveness and destruction, including bony expansion, erosion of cortical plates, displacement of adjacent teeth, maxillary sinus involvement, invasion of the pulp chamber and root canals and extension to and incorporation of adjacent teeth. Expansion, pain and erosion or perforation of bony cortex were seen in a higher percentage of recurrent tumors, but were also seen in non-recurrent tumors. The growth rate for cementoblastoma is estimated to be 0.5 cm/year. [4] The differential diagnosis for a periapical radiopacity include cementoma, osteoblastoma, periapical cemental dysplasia, condensing osteitis and hypercementosis. [2] Histologically, this tumor presents sheets of cementum like tissue, which may contain a large number of reversal lines with active cementoblasts. The irregularly mineralized trabeculae of cementum are fused to the root of the tooth. A band of fibrous connective tissue at the periphery resembling capsule may be present. [9] Cementoblastoma and osteoblastoma are essentially identical histologically and the only distinguishing feature is attachment of cementoblastoma to the root of a tooth. Histologically, the cementoblast in cementoblastoma may be plump with pleomorphic and hyperchromatic nuclei, however, mitotic figures are not seen in cementoblastoma. [10] In contrast to osteoblastoma, the cementoblastoma is an odontogenic tumor that recapitulates cementum deposition similar to that during root formation in the later stages of odontogenesis. Furthermore, the cementoblastoma is continuous with the cemental layer of the apical third of the tooth root and remains separated from bone by a continuation of the periodontal ligament, all of which supports an odontogenic origin. [11] Whereas osteoblastoma arises in the medullary cavity of bones. [2] The treatment of choice is complete removal of the lesion with extraction of associated tooth, followed by thorough curettage and peripheral ostectomy. [4] Cases have been also reported of endodontically preserving the tooth while surgical removal of benign cementoblastoma is done. [12]

   Conclusion Top

We presented a rare case of benign cementoblastoma in mandible and it should be considered in differential diagnosis of bony swellings of mandible. When extraction is attempted in such cases leaving the lesion behind makes the clinical diagnosis difficult. Though the patient had pre-extraction records, which helped in formulating the diagnosis. The patient was followed-up for 2 years with no recurrence.

   References Top

1.Huber AR, Folk GS. Cementoblastoma. Head Neck Pathol 2009;3:133-5.  Back to cited text no. 1
2.Pynn BR, Sands TD, Bradley G. Benign cementoblastoma: A case report. J Can Dent Assoc 2001;67:260-2.  Back to cited text no. 2
3.Sumer M, Gunduz K, Sumer AP, Gunhan O. Benign cementoblastoma: A case report. Med Oral Patol Oral Cir Bucal 2006;11:E483-5.  Back to cited text no. 3
4.Brannon RB, Fowler CB, Carpenter WM, Corio RL. Cementoblastoma: An innocuous neoplasm? A clinicopathologic study of 44 cases and review of the literature with special emphasis on recurrence. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002;93:311-20.  Back to cited text no. 4
5.Lemberg K, Hagström J, Rihtniemi J, Soikkonen K. Benign cementoblastoma in a primary lower molar, a rarity. Dentomaxillofac Radiol 2007;36:364-6.  Back to cited text no. 5
6.Infante-Cossio P, Hernandez-Guisado JM, Acosta-Feria M, Carranza-Carranza A. Cementoblastoma involving the maxillary sinus. Br J Oral Maxillofac Surg 2008;46:234-6.  Back to cited text no. 6
7.Dinakar J, Senthil Kumar M, Mathew Jacob S. Benign cementoblastoma associated with an unerupted third molar-A case report. Oral Maxillofac Pathol J 2010;1:76-78  Back to cited text no. 7
8.Ohki K, Kumamoto H, Nitta Y, Nagasaka H, Kawamura H, Ooya K. Benign cementoblastoma involving multiple maxillary teeth: Report of a case with a review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2004;97:53-8.  Back to cited text no. 8
9.Napier Souza L, Monteiro Lima Júnior S, Garcia Santos Pimenta FJ, Rodrigues Antunes Souza AC, Santiago Gomez R. Atypical hypercementosis versus cementoblastoma. Dentomaxillofac Radiol 2004;33:267-70.  Back to cited text no. 9
10.Slootweg PJ. Cementoblastoma and osteoblastoma: A comparison of histologic features. J Oral Pathol Med 1992;21:385-9.  Back to cited text no. 10
11.Sapp JP, Eversole LR, Wysocki GP. Contemporary Oral and Maxillofacial Pathology. St. Louis: Mosby; 1997. p. 144-5.  Back to cited text no. 11
12.Biggs JT, Benenati FW. Surgically treating a benign cementoblastoma while retaining the involved tooth. J Am Dent Assoc 1995;126:1288-90.  Back to cited text no. 12


  [Figure 1], [Figure 2], [Figure 3], [Figure 4]

This article has been cited by
1 Benign Cementoblastoma: Revisiting Rare Tumor of Mandible
Amit Dhawan, Tejinder Kaur, Sukhpreet Kaur, Ramandeep Singh Bhullar, Sarika Kapila
AMEI's Current Trends in Diagnosis & Treatment. 2020; 3(2): 86
[Pubmed] | [DOI]
2 Conservative Treatment of a Periapical Cementoblastoma: A Case Report
Daniella Cristina Borges, Paulo Rogério de Faria, Helvécio Marangon Júnior, Leonardo Bíscaro Pereira
Journal of Oral and Maxillofacial Surgery. 2019; 77(2): 272.e1
[Pubmed] | [DOI]
3 Benign cementoblastoma involving left deciduous first molar: A case report and review of literature
Jigna Pathak, RashmiMaruti Hosalkar, Sunil Sidana, Niharika Swain, Shilpa Patel
Journal of Oral and Maxillofacial Pathology. 2019; 23(3): 422
[Pubmed] | [DOI]
4 Cementoblastoma: an updated analysis of 258 cases reported in the literature
Bruno Ramos Chrcanovic,Ricardo Santiago Gomez
Journal of Cranio-Maxillofacial Surgery. 2017;
[Pubmed] | [DOI]
5 Residual cementoblastoma: An unusual presentation of a rare odontogenic tumor
Lucas Ribeiro Teixeira,Jessica Luana dos Santos,Luciana Yamamoto Almeida,Carla Bento Nelem-Colturato,Ricardo Ferreira de Paula,Fernando Radaelli Osório Oliveira,Jorge Esquiche León
Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology. 2017;
[Pubmed] | [DOI]
6 Revisiting Cementoblastoma with a Rare Case Presentation
Vijayanirmala Subramani,Malathi Narasimhan,Suganya Ramalingam,Soumya Anandan,Subhashini Ranganathan
Case Reports in Pathology. 2017; 2017: 1
[Pubmed] | [DOI]
7 Surgical treatment of cementoblastoma associated with apicoectomy and endodontic therapy: Case report
Bernardo Cesar Costa,Guilherme José Pimentel Lopes de Oliveira,Maria das Graças Afonso Miranda Chaves,Renan Roberto da Costa,Mário Francisco Real Gabrielli,Juliane Maria Guerreiro-Tanomaru,Mário Tanomaru-Filho
World Journal of Clinical Cases. 2016; 4(9): 290
[Pubmed] | [DOI]
8 Misdiagnosis of osteosarcoma as cementoblastoma from an atypical mandibular swelling: A case report
Oncology Letters. 2016; 11(6): 3761
[Pubmed] | [DOI]
9 Benign Jaw Lesions
Anita Gohel,Alessandro Villa,Osamu Sakai
Dental Clinics of North America. 2016; 60(1): 125
[Pubmed] | [DOI]
10 Radiolucent rim as a possible diagnostic aid for differentiating jaw lesions
Hamed Mortazavi,Maryam Baharvand,Somayeh Rahmani,Soudeh Jafari,Parvin Parvaei
Imaging Science in Dentistry. 2015; 45(4): 253
[Pubmed] | [DOI]


    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
    Access Statistics
    Add to My List *
* Registration required (free)  

  In this article
   Case Report
    Article Figures

 Article Access Statistics
    PDF Downloaded726    
    Comments [Add]    
    Cited by others 10    

Recommend this journal