Journal of Oral and Maxillofacial Surgery
Volume 65, Issue 5 , Pages 875-882, May 2007

Odontogenic Tumors in Sri Lanka: Analysis of 226 Cases

  • Hiroyuki Okada, DDS, PhD

      Affiliations

    • Senior Lecturer, Department of Oral Pathology, Nihon University School of Dentistry at Matsudo, Matsudo, Japan.
    • Corresponding Author InformationAddress correspondence and reprint requests to Dr Okada: Department of Oral Pathology, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
    • ,
  • Hirotsugu Yamamoto, DDS, PhD

      Affiliations

    • Professor and Director, Department of Oral Pathology, Nihon University School of Dentistry at Matsudo, Matsudo, Japan.
    • ,
  • W.M. Tilakaratne, BDS, MS, FDSRCS

      Affiliations

    • Senior Lecturer and Consultant, Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, Sri Lanka.

Purpose

The purpose of this study was to analyze the relative prevalence of odontogenic tumors in Sri Lanka and compare it with prevalences reported for other countries.

Patients and Methods

A total of 226 cases of odontogenic tumors reported by the Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya between 1996 and 2002, were analyzed.

Results

The most prevalent tumor was ameloblastoma (69.8%); odontoma was the fourth most prevalent (4.5%). No gender predilection was seen, but the tumors occurred most frequently in the second to fifth decades of life (77.4%) and most commonly in the mandible (79.6%).

Conclusions

The comparative data with statistically significant differences suggest a geographical difference in the relative prevalence of ameloblastoma among various continents. It is suggested that ameloblastoma most frequently occurs in the mandible (the posterior region) in all Asian, African, and South American countries.

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PII: S0278-2391(06)01343-7

doi:10.1016/j.joms.2006.06.293

Journal of Oral and Maxillofacial Surgery
Volume 65, Issue 5 , Pages 875-882, May 2007

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