Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide

ABSTRACT: Aim: The aim of this study was to evaluate the optical behavior of tooth color using CIE L*A*B* space; the teeth were subjected to novel bleaching gels containing peroxide carbamide with potassium oxalate. Materials and Method: Three different carbamide peroxide gels were experimentall...

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Autores principales:	Durán,Gerardo, Salas,Felipe, Gajardo,Sandra, Morales,Christopher, Henríquez,Ismael, Barrios,Luis, Rosales,Fernando
Lenguaje:	English
Publicado:	Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile. 2018
Materias:	Peroxide carbamide Tooth bleaching
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-01072018000300143
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spelling	oai:scielo:S0719-010720180003001432018-12-26Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamideDurán,GerardoSalas,FelipeGajardo,SandraMorales,ChristopherHenríquez,IsmaelBarrios,LuisRosales,Fernando Peroxide carbamide Tooth bleaching ABSTRACT: Aim: The aim of this study was to evaluate the optical behavior of tooth color using CIE LAB* space; the teeth were subjected to novel bleaching gels containing peroxide carbamide with potassium oxalate. Materials and Method: Three different carbamide peroxide gels were experimentally fabricated. They consisted of 10% (G10), 16% (G16) and 37% (G37) concentrations. Sixty recently extracted premolars were subjected to different bleaching protocols. Color change (ΔE) was assessed using the CIE Lab* system after the application of each gel. The data were analyzed using one-way ANOVA with Tukey’s post hoc test (α=5%) and a t-test. Results: The G10 and G16 gels exhibited an increase in ΔEab parameters from T0 to T1 (T0: application day of the gels. T1: 14th day measurement); a small decrease from T1 to T2 was also noted (T2: control measurement, 28th day). However, no statistically significant differences were found (p=0,22 for G10 and p=0,10 for G16). The G37 gel also exhibited an increase in ΔEab parameters, with similar results after the first application of 45 min, the second application of 45 min, and the third application of 45 min (T1, T2 and T3, respectively. T4: control measurement, 14th day). No statistically significant differences were observed between the three times of application (p>0,69), and an appreciable difference was noted between times T3 and T4 (p=0,000). Conclusions: The presented formulations of peroxide carbamide at 10%, 16%, and 37% are clearly effective. The G10 and G16 gels exhibited better effectiveness than the G37 gel.info:eu-repo/semantics/openAccessSociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile.Revista clínica de periodoncia, implantología y rehabilitación oral v.11 n.3 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-01072018000300143en10.4067/S0719-01072018000300143
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Peroxide carbamide Tooth bleaching
spellingShingle	Peroxide carbamide Tooth bleaching Durán,Gerardo Salas,Felipe Gajardo,Sandra Morales,Christopher Henríquez,Ismael Barrios,Luis Rosales,Fernando Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide
description	ABSTRACT: Aim: The aim of this study was to evaluate the optical behavior of tooth color using CIE LAB* space; the teeth were subjected to novel bleaching gels containing peroxide carbamide with potassium oxalate. Materials and Method: Three different carbamide peroxide gels were experimentally fabricated. They consisted of 10% (G10), 16% (G16) and 37% (G37) concentrations. Sixty recently extracted premolars were subjected to different bleaching protocols. Color change (ΔE) was assessed using the CIE Lab* system after the application of each gel. The data were analyzed using one-way ANOVA with Tukey’s post hoc test (α=5%) and a t-test. Results: The G10 and G16 gels exhibited an increase in ΔEab parameters from T0 to T1 (T0: application day of the gels. T1: 14th day measurement); a small decrease from T1 to T2 was also noted (T2: control measurement, 28th day). However, no statistically significant differences were found (p=0,22 for G10 and p=0,10 for G16). The G37 gel also exhibited an increase in ΔEab parameters, with similar results after the first application of 45 min, the second application of 45 min, and the third application of 45 min (T1, T2 and T3, respectively. T4: control measurement, 14th day). No statistically significant differences were observed between the three times of application (p>0,69), and an appreciable difference was noted between times T3 and T4 (p=0,000). Conclusions: The presented formulations of peroxide carbamide at 10%, 16%, and 37% are clearly effective. The G10 and G16 gels exhibited better effectiveness than the G37 gel.
author	Durán,Gerardo Salas,Felipe Gajardo,Sandra Morales,Christopher Henríquez,Ismael Barrios,Luis Rosales,Fernando
author_facet	Durán,Gerardo Salas,Felipe Gajardo,Sandra Morales,Christopher Henríquez,Ismael Barrios,Luis Rosales,Fernando
author_sort	Durán,Gerardo
title	Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide
title_short	Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide
title_full	Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide
title_fullStr	Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide
title_full_unstemmed	Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide
title_sort	evaluation of color change using cie lab coordinates on tooth structure subjected to different concentrations of peroxide carbamide
publisher	Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile.
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-01072018000300143
work_keys_str_mv	AT durangerardo evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide AT salasfelipe evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide AT gajardosandra evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide AT moraleschristopher evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide AT henriquezismael evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide AT barriosluis evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide AT rosalesfernando evaluationofcolorchangeusingcielabcoordinatesontoothstructuresubjectedtodifferentconcentrationsofperoxidecarbamide
_version_	1714206714127974400

Evaluation of color change using CIE LAB coordinates on tooth structure subjected to different concentrations of peroxide carbamide

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