title: Determination of susceptibility to sensitization to dental materials in atopic and non-atopic patients.
abstract: BACKGROUND
  Some studies report that atopic patients have a greater frequency of delayed-type sensitization than non-atopic patients.
  
  
  OBJECTIVE
  To determine the influence of the atopic condition on delayed sensitization to dental materials.
  
  
  METHODS
  cross-sectional study.
  
  
  METHODS
  Forty (40) atopic subjects and forty (40) non-atopic subjects, of both sexes, between 20 and 65 years of age were included. The determination of delayed sensitization to dental materials was performed using patch test. An oral exam was also carried out to check for lesions of the oral mucosa.
  
  
  RESULTS
  61.25% of the patients were positive for delayed-type sensitization to one or more allergens, being palladium chloride (21.25%), ammoniated mercury (20%), benzoyl peroxide (12.5%) and amalgam (10%) the most frequent. The frequency of sensitization was 67.5% in the group of atopic patients, compared to 55% in the non atopic group (p>0.05). The materials with the greatest difference of sensitization in atopic compared to non-atopic patients were ammoniated mercury, benzoyl peroxide, amalgam and Bisphenol A Dimethacrylate (BIS-GMA).
  
  
  CONCLUSIONS
  The atopic condition is not related to a higher frequency of delayed sensitization to a battery of dental materials.
authors.affiliation: Sergio Livingstone 943, Independencia. Santiago-Chile, grojasalcayaga@yahoo.es.
authors.forename: G
authors.initials: G
authors.lastname: Rojas-Alcayaga
authors.forename: A
authors.initials: A
authors.lastname: Carrasco-Labra
authors.forename: P
authors.initials: P
authors.lastname: Danús
authors.forename: M-A
authors.initials: MA
authors.lastname: Guzmán
authors.forename: I
authors.initials: I
authors.lastname: Morales-Bozo
authors.forename: B
authors.initials: B
authors.lastname: Urzúa
authors.forename: A
authors.initials: A
authors.lastname: Ortega-Pinto
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D003764:Dental Materials / Q000009:adverse effects*; D004198:Disease Susceptibility; D004342:Drug Hypersensitivity / Q000209:etiology*; D005260:Female; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000150:complications*; D008297:Male; D008875:Middle Aged; D055815:Young Adult
chemical_list: D003764:Dental Materials