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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Randomized clinical study of alterations in the color and surface roughness of dental enamel brushed with whitening toothpaste

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Author(s):
Rego Roselino, Lourenco de Moraes [1] ; Tirapelli, Camila [1] ; Pires-de-Souza, Fernanda de Carvalho Panzeri [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Ribeirao Preto Sch Dent, Dept Dent Mat & Prosthodont, Av Cafe S-N, BR-14040904 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Esthetic and Restorative Dentistry; v. 30, n. 5, p. 383-389, SEP-OCT 2018.
Web of Science Citations: 1
Abstract

Objectives This clinical study evaluated the influence of whitening toothpaste on color and surface roughness of dental enamel. Materials and MethodsResultsInitially, the abrasiveness of the toothpastes used (Sorriso Dentes Brancos {[}SDB]; Colgate Luminous White and Close up White Now) was tested on 30 (n=10) plexiglass acrylic plates that were submitted to mechanical tooth brushing totalizing 29,200 cycles. Subsequently, 30 participants were selected, and received a toothbrush and nonwhitening toothpaste (SDB). The participants used these products for 7 days and initial color readouts (Spectrophotometer) and surface roughness of one maxillary central incisors was performed after this period of time. For surface roughness readouts, one replica of the maxillary central incisor was obtained by a polyvinyl siloxane impression material (Express) and polyurethane resin. After baseline measurements, participants were separated into three groups (n=10), according to the toothpaste used. The participants returned after 7, 30, and 90 days when new color readouts and surface roughness were recorded. The measured values were statistically analyzed (2-way-ANOVA, repeated measures, Tukey, P<.05). Whitening toothpastes did not promote significant (P>.05) color alteration and nor increased the surface roughness of the dental enamel in brushing time of the study. ConclusionsClinical SignificanceThe abrasiveness of whitening toothpaste and the brushing trial period did not affect the surface roughness of dental enamel. However, color changes observed on enamel were above the perceptibility and acceptability thresholds reported in the literature. The over-the-counter toothpastes tested had an effect on dental enamel color above the perceptibility and acceptability thresholds but did not change the surface roughness of the teeth. (AU)

FAPESP's process: 12/13342-4 - Clinical evaluation of color and surface roughness of dental enamel and dental composites submitted to brushing with whitening dentifrice
Grantee:Lourenço de Moraes Rego Roselino
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/21831-5 - Clinical evaluation of color and surface roughness of dental enamel and dental composites submitted to brushing with whitening dentifrice
Grantee:Fernanda de Carvalho Panzeri
Support Opportunities: Regular Research Grants