Prevalence and distribution of odontogenic cysts in Sicily: 1986 - 2005

Abstract

The objective of this study was to assess the prevalence of odontogenic cysts (OCs) in Sicily and evaluate their distribution during a 20-year period. A cross-sectional retrospective study was carried out in 1,310 cysts of the jaw diagnosed in 12,197 individuals, who consecutively attended the Odontostomatologic Clinic of Palermo from 1986 to 2005. 1,273 cysts were classified as odontogenic, whereas only 37 were nonodontogenic. In the former group, the most frequent lesions were radicular cysts (84.5%), followed by dentigerous OCs (11.4%). Inflammatory radicular cysts were observed more in male gender, younger age at diagnosis and anterior maxilla as site of presentation. Unlike dentigerous cysts, the frequency of radicular cysts decreased from 10. Keywords: odontogenic cysts; epidemiology; demographics. IntroductionOdontogenic cysts (OCs) are relatively rare cystic lesions that affect the maxillofacial region. According to the most recent World Health Organization (WHO) International Classification (1), OCs were classified into two main groups that reflect their pathogenesis. The first group includes radicular cysts, recognizing its inflammatory origin and development as the consequence of advanced caries and dental pulpar necrosis (2), whereas in the second group, lesions of developmental origin namely, dentigerous cysts and keratocysts are included.Although the prevalence of OCs in several European and non-European countries has been reported and different risk factors (dental trauma, sex, long-term chronic phlogistic processes, high caries index in early age and oral hygiene) have been mentioned as contributing to these lesions (2-5), there is still a general lack of data. In Sicily, the only data published is limited to a survey regarding keratocysts observed in the eastern part of the island (6). The aim of this study was to assess the prevalence of OCs in our country and evaluate their distribution in relation to social, demographic and behavioral data of the patients who visited for all oral pathological lesions during 20 years. Materials and Methods Study populationA retrospective survey was carried out in 12,197 individuals, who consecutively attended the Odontostomatologic Clinic of the University of Palermo from 1986 to 2005 for all oral pathological lesions.A total of 1,310 patients were diagnosed to be affected by cysts of the jaw (708 males and 602 females; mean age

Odontogenic cysts: Demographic profile in a Brazilian population over a 38-year period

“…Whether this peak incidence of dentigerous cysts in older age groups is a particular characteristic of this European population is still a matter of discussion. Odontogenic keratocysts have been described as the third most common type of OC, with frequencies ranging from 1.3% to 21.5% (1,3,4,5,7,8,13), in agreement with the present findings. Most cases of odontogenic keratocysts are diagnosed in men between the second and third decades of life (2-4, 5,7,8).…”

“…The 1.019 cases of OCs identified in the present study accounted for 11.0% of all specimens stored in the archives of the Oral Pathology Service at UFRN. Similar results have been reported in previous studies invol-ving populations from Brazil (3), Chile (4), Sicilia (13), and the United Kingdom (2). Studies involving Mexican populations have shown lower frequencies of OCs ranging from 7.8% to 8.4% (6,7).…”

“…It should be emphasized that the Oral Pathology Service of UFRN is a referral center in oral and maxillofacial pathology located in the northeastern region of Brazil, whereas previous study involving Brazilian populations have been performed at a referral center located in the southeastern (3) region of Brazil. Studies conducted in other countries also reported a male predominance, with frequencies ranging from 52.5% to 65.0% (2,5,7,8,13).…”

“…Dentigerous cysts have been described as the second most common OC, with frequencies ranging from 11.4% to 33.0% (1,3,4,8,10,11). Most cases are diagnosed in men (2,3,13). The posterior region of the mandible is the site most frequently affected by these lesions, followed by the anterior region of the maxilla (2).…”

Prevalencia de quistes odontogénicos: Hospital Regional Valdivia entre los años 1990 y 2010

“…Estudios internacionales han reportado una prevalencia general dentro de las lesiones del territorio maxilofacial de un 10,4%, siendo el quiste radicular el mas prevalente (72,5%) (4,5). En cuanto a la edad de presentación, estudios mencionan 31 años promedio, con una prevalencia mayor en el género femenino (3).…”