title: Comparative evaluation of two different remineralizing agents on the microhardness of bleached enamel surface: Results of an in vitro study.
abstract: BACKGROUND
  Various agents are studied for their remineralization potential.
  
  
  OBJECTIVE
  To evaluate the effect of GC Tooth Mousse and Toothmin Tooth Cream on microhardness of bleached enamel.
  
  
  METHODS
  In vitro- study.
  
  
  METHODS
  Twenty freshly extracted anterior teeth were cut sagittally and impregnated in cold cure acrylic resin. Specimens were kept in artificial saliva to prevent from dehydration. After measuring baseline hardness, teeth were randomly divided into two groups. Everbrite In - Office Tooth whitening kit (Dentamerica) was used to demineralize the teeth following which hardness was measured again. Teeth in group one (n=10) and group two (n=10) were treated with GC tooth mousse (Recaldent) and Toothmin tooth cream (Abbott Healthcare Pvt.Ltd) daily for seven days and microhardness of enamel surface was measured.
  
  
  METHODS
  Mean, SD, and percentage change in the microhardness were calculated. Student's paired t-test was used to evaluate the signifi cance of change from initial, after bleaching for 5 min and after 1-week remineralization Unpaired't' test was used to compare difference between groups.
  
  
  RESULTS
  Microhardness significantly decreased in both groups after bleaching (% change group one: 3.24% group two: 3.26% in group; P<0.01 in both groups). Both products significantly increased mineralization after seven days of treatment (P<0.01). Remineralization was numerically better in Toothmin group (Abbott Healthcare Pvt.Ltd ) compared to GC Mousse(Recaldent) (% change 3.27% vs 6.34%). However, difference was not significant (P >0.05).
  
  
  CONCLUSIONS
  Both GC Tooth Mousse (Recaldent) and Toothmin Tooth cream (Abbott Healthcare Pvt.Ltd) increase the microhardness of bleached enamel. Toothmin tooth cream is a better agent for increasing microhardness, although difference is not significant.
authors.affiliation: Department of Conservative Dentistry, Endodontics, and Esthetic Dentistry, Dr. DY Patil Dental College, Pune, Maharashtra, India.
authors.forename: Gunpriya
authors.initials: G
authors.lastname: Kaur
authors.forename: Anita U
authors.initials: AU
authors.lastname: Sanap
authors.forename: Shalini D
authors.initials: SD
authors.lastname: Aggarwal
authors.forename: Tanaya
authors.initials: T
authors.lastname: Kumar
mesh_terms: D002364:Caseins / Q000737:chemistry*; D003743:Dental Enamel / Q000187:drug effects*; D006244:Hardness; D006801:Humans; D066298:In Vitro Techniques; D013499:Surface Properties; D014073:Tooth Bleaching; D058205:Tooth Bleaching Agents; D014089:Tooth Remineralization / Q000379:methods*
chemical_list: D002364:Caseins; D058205:Tooth Bleaching Agents; C447032:casein phosphopeptide-amorphous calcium phosphate nanocomplex