title: Exploring some aspects associated with dentine hypersensitivity in children.
abstract: BACKGROUND
  The etiology of dentine hypersensitivity (DH) is still inconclusive and there are few studies concerning it in children.
  
  
  OBJECTIVE
  To evaluate clinical, dietary, and salivary variables in children with DH complaints.
  
  
  METHODS
  Forty-eight children were asked about DH. Data regarding dietary habits were collected from the children's parents and an examination was performed to determine dental erosion. Dental biofilm was estimated by oral hygiene status, according to Greene and Vermillion's Simplified Oral Hygiene Index (OHI-S). Whole saliva was collected under mechanical stimulation and evaluated salivary flow rate, initial pH, buffer capacity, and calcium and phosphate concentrations. The temperature of soft drinks, drinking method, sense of bitter taste, and other variables were also determined. Possible factors associated with DH were analyzed by univariate and multiple Poisson regression analyses. The prevalence ratio (PR) values and 95% confidence intervals (95% CI) were calculated.
  
  
  RESULTS
  DH was associated with the presence of dental erosion (PR; 95% CI = 2.23; 1.05 to 4.71) and salivary flow rate (2.49; 1.05 to 5.91). When the presence of erosion was not included, other variables were retained as follows: bitter taste (2.36; 1.38 to 4.03), OHI-S (0.47; 0.23 to 0.97).
  
  
  CONCLUSIONS
  DH in children is associated with factors related to dental erosion.
authors: University of São Paulo, São Paulo, SP, Brazil.
authors: Caleb
authors: C
authors: Shitsuka
authors: University of São Paulo, São Paulo, SP, Brazil.
authors: Fausto Medeiros
authors: FM
authors: Mendes
authors: University of São Paulo, São Paulo, SP, Brazil.
authors: Maria Salete Nahás Pires
authors: MS
authors: Corrêa
authors: University of Cruzeiro do Sul, São Paulo, SP, Brazil.
authors: Mariana Ferreira
authors: MF
authors: Leite
mesh_terms: D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D003807:Dentin Sensitivity / Q000175:diagnosis* / Q000209:etiology*; D005247:Feeding Behavior / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009910:Oral Hygiene / Q000009:adverse effects / Q000379:methods; D012463:Saliva / Q000502:physiology*; D014077:Tooth Erosion / Q000175:diagnosis* / Q000209:etiology*