title: [Lesiones de mucosa bucal. Factores asociados en población infantil].
abstract: BACKGROUND
  there are few systematic studies reporting the prevalence of oral mucosal lesions in children. The reported prevalence is ranging from 4.1 % to 52.6 %, probably due to differences in methodology and population. The aim was to identify the prevalence of oral mucosal lesions in children population.
  
  
  METHODS
  a cross, descriptive, retrospective study in children who attended the dental clinic San Lorenzo Atemoaya was done (January 2006-July 2009); the data was obtained from medical records. Oral mucosal lesions were recorded. Descriptive analysis and unconditional logistic regression were conducted.
  
  
  RESULTS
  the sample was 367; there were 200 males (54.5 %). The median age was six years. The prevalence of oral mucosal lesions was 66.2 %. The most common lesions were cheilitis simple (41.1 %), melanotic macule (18.3 %), petechiae (16.9 %) and traumatic ulcer (12 %), without difference between sexes. The sucking lip was associated with cheilitis simple (OR 1.7, p = 0.013) and recurrent ulcers with onychophagia (OR 15.75, p = 0.026).
  
  
  CONCLUSIONS
  it was observed a higher prevalence of oral mucosal lesions in children than reported in other papers. Association is confirmed between parafunctional habits and oral mucosal lesions.
authors.affiliation: Departamento de Atención a la Salud, Universidad Autónoma Metropolitana Xochimilco, Distrito Federal, México. linares62410@hotmail.com; celin2@yahoo.com.
authors.forename: Celia
authors.initials: C
authors.lastname: Linares-Vieyra
authors.forename: Julieta Del Carmen
authors.initials: Jdel C
authors.lastname: Meza-Sánchez
authors.forename: Martha Beatriz
authors.initials: MB
authors.lastname: González-Guevara
authors.forename: José Francisco
authors.initials: JF
authors.lastname: Murrieta-Pruneda
authors.forename: Sandra Jessica
authors.initials: SJ
authors.lastname: Salgado-Rodríguez
authors.forename: Rosalba
authors.initials: R
authors.lastname: Morales-Jaimes
mesh_terms: D017677:Age Distribution; D002613:Cheilitis / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006184:Habits; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008548:Melanosis / Q000453:epidemiology; D008800:Mexico / Q000453:epidemiology; D009059:Mouth Diseases / Q000453:epidemiology*; D009061:Mouth Mucosa; D019226:Oral Ulcer / Q000453:epidemiology; D015995:Prevalence; D011693:Purpura / Q000453:epidemiology; D012189:Retrospective Studies; D017678:Sex Distribution
keywords: child; mouth mucosa; wounds and injuries