The incidence of Oro-maxillofacial lesions (10 years) in the department of Oral and Maxillofacial surgery, Mahidol University: Odontogenic cysts

Abstract

Objective: The study aimed to determine the incidence of all odontogenic cysts in the patients along with type of cyst, gender, age of the patients, and site of lesion in a 10-year period (2003 - 2012) at the Oral and Maxillofacial Surgery clinic, Mahidol University. Materials and methods: This study was a retrospective study, in which the pathologic records of patients with odontogenic cysts were obtained and data on the incidence and type of cyst, gender and age of the patients, and site of the lesion was analyzed. Results: A total of 490 odontogenic cysts were noted (24.97%) during the study period. The incidence of the lesion in males was 256 and in females 234 with the ratio of M:F=1.09:1. The most common incidence of the cyst was the third decade of life. There were 49.18% of dentigerous cyst, 39.59% radicular cyst, 6.94% residual cyst, 0.82% glandular odontogenic cyst and paradental cyst, 0.61% lateral periodontal cyst, and 0.41% eruption cyst, but no gingival cyst of the newborn or gingival cyst of the adult was noted. The incidence of odontogenic cyst was more in mandible than maxilla, except radicular cyst and residual cyst. Conclusion: Studies featuring the clinical and radiographic features of odontogenic cyst are relatively low, therefore, the knowledge about the incidence of odontogenic cyst by age, gender, and site can be help in diagnosis, and ensuring the most appropriate treatment is carried out. Keywords: Cysts of the jaw, incidence, eruption cyst, radicular cyst, dentigerous cyst, radiographic feature, clinicopathologic feature, histopathologic feature