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Titolo:
Effect of carbamide peroxide bleaching agents on the physical properties and chemical composition of enamel
Autore:
Cimilli, H; Pameijer, CH;
Indirizzi:
Univ Marmara, Sch Dent, Istanbul, Turkey Univ Marmara Istanbul TurkeyUniv Marmara, Sch Dent, Istanbul, Turkey Univ Connecticut, Farmington, CT USA Univ Connecticut Farmington CT USAUniv Connecticut, Farmington, CT USA
Titolo Testata:
AMERICAN JOURNAL OF DENTISTRY
fascicolo: 2, volume: 14, anno: 2001,
pagine: 63 - 66
SICI:
0894-8275(200104)14:2<63:EOCPBA>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Cimilli, H Zincirilikuyu Akad Sitesi 4 823, TR-80600 Istanbul, Turkey Zincirilikuyu Akad Sitesi 4 823 Istanbul Turkey TR-80600 rkey
Citazione:
H. Cimilli e C.H. Pameijer, "Effect of carbamide peroxide bleaching agents on the physical properties and chemical composition of enamel", AM J DENT, 14(2), 2001, pp. 63-66

Abstract

Purpose: To evaluate the effect of two commercially available carbamide peroxides bleaching agents, Opalescence and Nite-White, in concentrations of 10, 15 and 16%, on enamel. Materials and Methods: Vickers hardness measurements (VH) were made at the surface and 110 mum below the surface on human enamel samples that were treated for 5 or 10 days, 6 hrs/day. Furthermore, infrared spectrophotometry (IR), Fourier transform infrared spectrophotometer (FTIR) and X-ray diffraction (XRD) measurements were performed after the VH measurements were completed. Results: Using a one-way ANOVA, statistically significant differences in VH could be established between surface and subsurface VH values. For all groups, including the control group, the surface VH values were statistically significantly higher than subsurface VI-I. IR, FTIR and XRD established a change from hydroxyapatite to primary calcium ortho phosphate [Ca(H2PO4)(2)] for all experimental groups except for 10%Opalescense tested for 5 or 10 days.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/18 alle ore 08:46:30