دورية أكاديمية
أعرض في EDS

Effect of bleaching protocols on surface roughness and color change of high- and low-viscosity bulk-fill composite resins.

التفاصيل البيبلوغرافية
العنوان: Effect of bleaching protocols on surface roughness and color change of high- and low-viscosity bulk-fill composite resins.
عنوان ترانسليتريتد: Efeito de protocolos clareadores na rugosidade de superfície e alteração de cor de resinas compostas bulk-fill de alta e baixa viscosidade.
المؤلفون: Tavares BG; Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brasil., França FM; Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brasil., Basting RT; Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brasil., Turssi CP; Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brasil., Amaral FL; Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brasil. flbamaral@gmail.com.
المصدر: Acta odontologica latinoamericana : AOL [Acta Odontol Latinoam] 2020 Sep 01; Vol. 33 (2), pp. 59-68.
نوع المنشور: Journal Article; Randomized Controlled Trial
اللغة: English
بيانات الدورية: Publisher: Acta Odontologica Latinoamericana Country of Publication: Argentina NLM ID: 8610218 Publication Model: Print Cited Medium: Internet ISSN: 1852-4834 (Electronic) Linking ISSN: 03264815 NLM ISO Abbreviation: Acta Odontol Latinoam
أسماء مطبوعة: Original Publication: Buenos Aires : Acta Odontologica Latinoamericana
مواضيع طبية MeSH: Composite Resins/*chemistry , Hydrogen Peroxide/*chemistry , Tooth Bleaching/*methods , Tooth Bleaching Agents/*chemistry , Tooth Discoloration/*drug therapy , Viscosity/*drug effects, Color ; Humans ; Materials Testing
مستخلص: The aim of this in vitro study was to evaluate the effect of bleaching protocols on the surface roughness (Ra), color change and surface micromorphology of a low-viscosity bulk-fill composite (Filtek Bulk Fill Flow, 3M ESPE), a highviscosity bulk-fill composite (Filtek Bulk Fill, 3M ESPE) and a conventional nanoparticulate composite resin (control) (Filtek Z350 XT, 3M ESPE). Forty samples of each composite (disks 5 mm in diameter and 2 mm thick) were randomly divided into four groups (n=10), according to bleaching protocol: a) 10% carbamide peroxide gel (Opalescence, Ultradent Products) (2 h/ day, for 14 days); b) 40% hydrogen peroxide gel (Opalescence Boost, Ultradent Products) (three bleaching sessions, once a week, 45 min/session); c) whitening rinse (Listerine Whitening Extreme, Johnson & Johnson) (2 min/day, for 14 days); and d) distilled water (control). The samples were submitted to triplicate readings (Ra and color [CIELAB parameters]) before and after contact with bleaching protocols. Micromorphology was analyzed in a scanning electron microscope (SEM). Ra and color parameters (ΔL, Δa, Δb and ΔE) were analyzed by generalized linear models (α=0.05). The Ra of the high-viscosity bulk-fill was significantly higher than that of the other composites (p<0.05). Ra increased significantly (p<0.05) and surface became more irregular (SEM analysis) in all the composite resins, regardless of the bleaching protocol (p<0.05). The high-viscosity bulk-fill composite resin group had significantly lower ΔE (p<0.05) than the nanoparticulate composite resin group immersed in distilled water. It was concluded that the characteristics of each resin significantly influenced the Ra more than the bleaching protocol. The high-viscosity bulk-fill resin presented minor color change.
Competing Interests: none
(Sociedad Argentina de Investigación Odontológica.)
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فهرسة مساهمة: Keywords: bleaching agents; composite resins; surface properties
Local Abstract: [Publisher, Portuguese] Este estudo in vitro teve objetivo de avaliar o efeito de protocolos clareadores sobre a rugosidade de superfície (Ra), alteração de cor e micromorfologia de resina bulk-fill de baixa viscosidade (Filtek Bulk Fill Flow, 3M ESPE), alta viscosidade (Filtek Bulk Fill, 3M ESPE) e de uma resina composta nanoparticulada (controle) (Filtek Z350 XT, 3M ESPE). Quarenta amostras de cada resin composta (discos de 5 mm de diâmetro e 2 mm de espessura) foram aleatoriamente divididas em quatro grupos , de acordo com protocolo clareador (n=10): a) Gel de peróxido de carbamida (Opalescence, Ultradent Products) (2 horas/dia, por 14 dias); b) Gel de peróxido de hidrogênio (Opalescence Boost, Ultradent Products) (3 sessões de clareamento, uma por semana, 45 min/sessão); enxaguatório clareador (Listerine Whitening Extreme, Johnson & Johnson) (2 min/dia, por 14 dias); d) água destilada (controle). As amostras foram submetidas a leituras, em triplicata (Ra e cor (parâmetros CIELab) antes e depois do contato com os protocolos clareadores. A micromorfologia de superfície foi conduzida em microscópio eletrônico de varredura (MEV). Ra e parâmetros de cor (ΔL, Δa, Δb e ΔE) foram analisados por modelos lineares generalizados (α=0.05). A Ra da resina bulk-fill de alta viscosidade foi significantemente superior do que para os outros compósitos (p<0.05). A Ra aumentou significantemente (p<0.05) e a superfície ficou mais irregular (MEV) para todos os compósitos, independente do protocolo clareador (p<0,05). A resina bulk-fill de alta viscosidade obteve menor ΔE (p<0.05) do que a resina composta nanoparticulada, imersa em água destilada. Pode-se concluir que as características de cada resina composta influenciaram de forma mais significativa a Ra do que o protocolo clareador. A resina bulk fill de alta viscosidade apresentou menor alteração de cor.
المشرفين على المادة: 0 (Composite Resins)
0 (Filtek Z250)
0 (Tooth Bleaching Agents)
0 (filtek Z350)
BBX060AN9V (Hydrogen Peroxide)
تواريخ الأحداث: Date Created: 20200913 Date Completed: 20200922 Latest Revision: 20200922
رمز التحديث: 20221213
PMID: 32920607
قاعدة البيانات: MEDLINE
الوصف
تدمد:1852-4834