Effect Of Different Light-curing Modes On Degree Of Conversion, Staining Susceptibility And Stain's Retention Using Different Beverages In A Nanofilled Composite Resin.

dc.creatorAguiar, Flávio Henrique Baggio
dc.creatorGeorgetto, Matheus Henrique
dc.creatorSoares, Giulliana Panfiglio
dc.creatorCatelan, Anderson
dc.creatorDos Santos, Paulo Henrique
dc.creatorAmbrosano, Glaucia Maria Bovi
dc.creatorFigueroba, Sidney Raimundo
dc.creatorLovadino, José Roberto
dc.date2011-Apr
dc.date2015-11-27T13:21:16Z
dc.date2015-11-27T13:21:16Z
dc.date.accessioned2018-03-29T01:12:52Z
dc.date.available2018-03-29T01:12:52Z
dc.identifierJournal Of Esthetic And Restorative Dentistry : Official Publication Of The American Academy Of Esthetic Dentistry ... [et Al.]. v. 23, n. 2, p. 106-14, 2011-Apr.
dc.identifier1708-8240
dc.identifier10.1111/j.1708-8240.2011.00406.x
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/21477037
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/199365
dc.identifier21477037
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1299598
dc.descriptionIt is unknown whether the staining pigment concentration would affect the color of composite resin and whether the absorption of the staining pigment is related to the degree of conversion (DC). The purpose of this study was to evaluate the effect of light-curing units (LCUs) on DC, superficial staining (ΔE), and pigment concentration (PC) in a nanofilled composite resin (Z350, 3M ESPE) using different beverages. Specimens were polymerized for 20 seconds using four LCUs (N=50): quartz-tungsten-halogen (QTH)--450 mW/cm(2); laser (LAS)--300 mW/cm(2); second-generation light-emitting diode (LED)-1100 mW/cm(2); and third generation LED--700 mW/cm(2). DC (%) was measured using Fourier transform infrared spectroscopy. Specimens concerning each group (N=10) were then immersed in one of the solutions (distilled water, red wine, whisky, coffee, and cola--40 min/day, for 40 days). Specimen's color was measured before and after exposure to solutions using a colorimeter (Commission Internacionale de I'Eclairaga L*a*b* color scale), and ΔE was calculated. Specimens were then prepared for the spectrophotometric analysis to measure PC. Data were submitted to two-way analysis of variance and Tukey's test (p=0.05). DC: QTH presented the lowest DC, with statistical differences for LAS, LED 2, and LED 3. Whisky and wine showed lower PC mean values than cola and coffee. No statistical difference was observed for LCUs regarding PC and all staining solutions, except cola. Whisky showed the highest values for ΔE regarding all LCUs. Wine showed statistically lower ΔE than whisky, with water presenting the lowest ΔE. LAS and QTH showed higher values than LED 2 concerning ΔE.   LCUs interfered with DC and altered the PC and ΔE of the composite resin submitted to different staining solutions. There was no correlation among DC, PC, and ΔE. Light-curing modes might interfere with staining susceptibility, stain's retention, and DC of a composite resin, compromising the clinical performance. The highest pigment absorption was not associated with the highest superficial staining of the composite resin. Alcoholic drinks lead to greater superficial staining and non-alcoholic solutions lead to a higher pigment concentration.
dc.description23
dc.description106-14
dc.languageeng
dc.relationJournal Of Esthetic And Restorative Dentistry : Official Publication Of The American Academy Of Esthetic Dentistry ... [et Al.]
dc.relationJ Esthet Restor Dent
dc.rightsfechado
dc.rights© 2011, COPYRIGHT THE AUTHORS. JOURNAL COMPILATION © 2011, WILEY PERIODICALS, INC.
dc.sourcePubMed
dc.subjectAlcoholic Beverages
dc.subjectBeverages
dc.subjectCarbonated Beverages
dc.subjectCoffee
dc.subjectColor
dc.subjectColorimetry
dc.subjectComposite Resins
dc.subjectCuring Lights, Dental
dc.subjectDental Materials
dc.subjectHumans
dc.subjectLasers
dc.subjectMaterials Testing
dc.subjectNanocomposites
dc.subjectPigments, Biological
dc.subjectPolymerization
dc.subjectSpectrophotometry
dc.subjectSpectroscopy, Fourier Transform Infrared
dc.subjectSurface Properties
dc.subjectTime Factors
dc.subjectWater
dc.subjectWine
dc.titleEffect Of Different Light-curing Modes On Degree Of Conversion, Staining Susceptibility And Stain's Retention Using Different Beverages In A Nanofilled Composite Resin.
dc.typeArtículos de revistas


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