title: EFFECT OF ADDING TRICALCIUM PHOSPHATE TO FLUORIDE MOUTHRINSE ON MICROHARDNESS OF DEMINERALIZED PRIMARY HUMAN TOOTH.
abstract: The purpose of the present study was to evaluate the effect of fluoride mouthrinse containing tricalcium phosphate on microhardness of demineralized primary enamel. Thirty-six sound primary incisors were immersed in a demineralizing solution (pH 4.4) for 96 hours at 37 degrees C to create artificial caries-like lesions. After artificial caries formation, the specimens were randomly divided into 3 groups (with 12 specimens in each group): Group A: deionized water; Group B: 0.05% NaF plus 20 ppm tricalcium phosphate mouthrinse and Group C: 0.05% NaF mouthrinse. All the specimens were immersed for 1 minute at 37 degrees C three times per day for 7 days in the respective mouthrinse among pH cycling. The surface microhardness was examined using a Vickers hardness tester (100 grams for 15 seconds) at baseline, before and after the pH-cycling procedure. Data were analyzed using one-way ANOVA and Tukey's multiple comparison tests with a significance level of 0.05. After treatment, Group Ahad a significantly lower surface microhardness value than the other two groups (p=0.000); however, there was no significant difference between Groups B and C (p=0.728). We concluded fluoride mouthrinse containing tricalcium phosphate and fluoride mouthrinse have similar remineralizing effects on microhardness of demineralized primary teeth.
authors.forename: Praphasri
authors.initials: P
authors.lastname: Rirattanapong
authors.forename: Kadkao
authors.initials: K
authors.lastname: Vongsavan
authors.forename: Chavengkiat
authors.initials: C
authors.lastname: Saengsirinavin
authors.forename: Pimonchat
authors.initials: P
authors.lastname: Phuekcharoen
mesh_terms: D002130:Calcium Phosphates / Q000494:pharmacology*; D002327:Cariostatic Agents / Q000494:pharmacology*; D003731:Dental Caries; D003743:Dental Enamel / Q000187:drug effects*; D006245:Hardness Tests; D006801:Humans; D066298:In Vitro Techniques; D009067:Mouthwashes / Q000494:pharmacology*; D012969:Sodium Fluoride / Q000494:pharmacology*; D017001:Tooth Demineralization; D014089:Tooth Remineralization; D014094:Tooth, Deciduous / Q000187:drug effects*
chemical_list: D002130:Calcium Phosphates; D002327:Cariostatic Agents; D009067:Mouthwashes; D012969:Sodium Fluoride; C018392:tricalcium phosphate