title: Efficacy of desensitizing agents on postoperative sensitivity following an in-office vital tooth bleaching: A randomized controlled clinical trial.
abstract: OBJECTIVE
  To assess and compare the incidence and intensity of experienced after an in-office vital tooth bleaching in case of dental fluorosis using two different types of desensitizing agents, at different time periods.
  
  
  METHODS
  Sixty-nine subjects with mild-to-moderate fluorosis were randomly divided into three groups of 23 each. Group I - control group (placebo), group II-potassium nitrate 5% and sodium monofluorophosphate 0.7% (Sensodent KF), and group III-Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP) (Tooth Mousse). In-office vital tooth bleaching was done using 35% hydrogen peroxide liquid (Pola office) in two sessions. Desensitizing agent was applied for 10 min after each session. Postoperative sensitivity was recorded after 24 h and 7 days. The statistical analysis was done using chi-square test, analysis of variance (ANOVA), and post hoc Tukey's test.
  
  
  RESULTS
  The experimental groups showed significantly less incidence and intensity of sensitivity compared to control group, whereas there was no difference between them.
  
  
  CONCLUSIONS
  The desensitizing agents used in the study show effective reduction after an in-office vital tooth bleaching.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Sri Siddhartha Dental College, Tumkur, Karnataka, India.
authors.forename: Jyothi Kashi
authors.initials: JK
authors.lastname: Nanjundasetty
authors.affiliation: Department of Conservative Dentistry and Endodontics, Bangalore Institute of Dental Sciences and Hospital, Bangalore, Karnataka, India.
authors.forename: Mohammed
authors.initials: M
authors.lastname: Ashrafulla
keywords: 5% potassium nitrate (KNO3) and sodium monofluorophosphate; Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP); dental fluorosis; desensitizing agents; in-office vital tooth bleaching; postoperative sensitivity; tooth sensitivity