title: Effects of carbamide peroxide containing bleaching agents on the morphology and subsurface hardness of enamel.
abstract: The purpose of this study is to evaluate the effects of nightguard bleaching agents (Karisma and Yotuel) on the enamel surface of forty anterior teeth. Ten teeth of each group were evaluated with SEM and ten teeth of each group were tested with a microhardness tester Morphologic alterations were observed on the enamel surfaces with SEM. Karisma group showed a significant decrease in enamel hardness (p<0.05) and microhardness values of enamel were increased significantly in Yotuel group (p<0.05).
authors.affiliation: Department of Pediatric Dentistry, University of Gazi, Ankara, Turkey. anese@turk.net
authors.forename: N
authors.initials: N
authors.lastname: Akal
authors.forename: H
authors.initials: H
authors.lastname: Over
authors.forename: A
authors.initials: A
authors.lastname: Olmez
authors.forename: H
authors.initials: H
authors.lastname: Bodur
mesh_terms: D000077463:Carbamide Peroxide; D002327:Cariostatic Agents / Q000494:pharmacology; D003743:Dental Enamel / Q000187:drug effects* / Q000648:ultrastructure; D003747:Dental Enamel Solubility / Q000187:drug effects; D004338:Drug Combinations; D005459:Fluorides / Q000494:pharmacology; D006244:Hardness / Q000187:drug effects; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010545:Peroxides / Q000009:adverse effects*; D017680:Potassium Compounds / Q000494:pharmacology; D013499:Surface Properties / Q000187:drug effects; D014073:Tooth Bleaching / Q000009:adverse effects*; D014508:Urea / Q000009:adverse effects* / Q000031:analogs & derivatives*
chemical_list: D002327:Cariostatic Agents; D004338:Drug Combinations; D010545:Peroxides; D017680:Potassium Compounds; D000077463:Carbamide Peroxide; D014508:Urea; C033320:potassium fluoride; D005459:Fluorides