title: A retrospective study of paediatric oral lesions from Thailand.
abstract: OBJECTIVE
  To survey the paediatric oral lesions in Thailand.
  
  
  METHODS
  Biopsy records over a 15-year period (1990-2004) were retrieved from the files of the Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University. Paediatric cases with an age of 16 years or younger were selected. The age of the patients was divided into three groups according to the dentition period. The lesions were classified into three categories: inflammatory/reactive lesions, cystic lesions, and tumour/tumour-like lesions.
  
  
  RESULTS
  From a total of 8314 oral biopsies, 1251 cases (15.05%) were in the paediatric population. The greatest number of lesions fell into the cystic category, followed closely by the inflammatory/reactive category and tumour/tumour-like category, respectively. The top ten most frequently encountered lesions in the present study were dentigerous cyst, mucocele, pyogenic granuloma, ameloblastoma, radicular cyst, odontoma, odontogenic keratocyst, irritation fibroma (focal fibrous hyperplasia), fibrous dysplasia, and osteomyelitis. The majority of lesions were found in the mixed dentition period (49.24%). There was no statistical difference in the occurrence between genders in this study.
  
  
  CONCLUSIONS
  The present study shows an almost similar trend to previous studies except in the ranking among and within categories. These differences may be attributable to the nature of the population studied and because Chulalongkorn University is a major referral centre.
authors.affiliation: Department of Oral Pathology, Chulalongkorn University, Bangkok, Thailand. fibroma123@yahoo.com
authors.forename: Kittipong
authors.initials: K
authors.lastname: Dhanuthai
authors.forename: Marut
authors.initials: M
authors.lastname: Banrai
authors.forename: Somyot
authors.initials: S
authors.lastname: Limpanaputtajak
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007570:Jaw Cysts / Q000453:epidemiology; D008297:Male; D009059:Mouth Diseases / Q000453:epidemiology*; D009062:Mouth Neoplasms / Q000453:epidemiology; D010484:Periapical Granuloma / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D013280:Stomatitis / Q000453:epidemiology; D013785:Thailand / Q000453:epidemiology