title: Clinical efficacy of two dentin desensitizing agents.
abstract: OBJECTIVE
  To compare the clinical effect over 3 months of two commercially available desensitizing agents on the level of discomfort of patients with complaints of dentin sensitivity.
  
  
  METHODS
  An oxalate-containing pre-polymerized resin suspension (Pain-Free), a 0.7% fluoride solution (DentinBloc), and a distilled water placebo were compared in a clinical setting. Ten volunteer patients exhibiting three or more teeth that were sensitive to touch and to a stream of forced air were enrolled in the study (52 teeth total). Each patient's level of sensitivity to tactile stimuli and to a forced air stream was recorded using a visual analog scale (VAS). The tactile stimulus was a metal probe rubbed across the exposed dentin with a constant pressure of 40 grams. A 1-second blast of air from a dental unit air syringe was used to generate the air stream. The desensitizing agents were applied according to manufacturers' guidelines. Sensitivity measurements were recorded at baseline, immediately after treatment, at 1 week, 1 month, and at 3 months. VAS pain scores were analyzed using a repeated measures ANOVA (alpha = 0.05).
  
  
  RESULTS
  The pre-polymerized resin suspension (Pain-Free), the fluoride-containing solution (DentinBloc), and the placebo all decreased dentin sensitivity. No significant difference was found among the desensitizing agents at any time period (P > 0.05).
authors.affiliation: 81st Dental Squadron/SGD, Keesler AFB, MS 39534, USA.
authors.forename: M F
authors.initials: MF
authors.lastname: Morris
authors.forename: R D
authors.initials: RD
authors.lastname: Davis
authors.forename: B W
authors.initials: BW
authors.lastname: Richardson
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D003764:Dental Materials / Q000627:therapeutic use*; D003807:Dentin Sensitivity / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D009930:Organic Chemicals; D010070:Oxalates / Q000627:therapeutic use*; D010147:Pain Measurement
chemical_list: D003764:Dental Materials; C115349:DentinBloc; D009930:Organic Chemicals; D010070:Oxalates; C121034:Pain-Free