Effects of different food colorants and polishing techniques on color stability of provisional prosthetic materials

Rutkūnas, Vygandas; Sabaliauskas, Vaidotas; Mizutani, Hiroshi

doi:10.4012/dmj.2009-075

Cited by 101 publications

(222 citation statements)

References 60 publications

(61 reference statements)

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“…These results corroborate the findings of previous studies that evaluated the color stability of different materials and observed that Protemp resin also presented high color change values 2,16 .…”

Section: Discussionsupporting

confidence: 92%

“…Similar results have been found in previous studies that also observed greater susceptibility to color change of bis-acrylic resins when in contact with pigmenting solutions 2,7 . Moreover, studies conducted by Haselton et al 4 and Turgut et al 17 pointed out the capacity of absorption and adsorption of pigmenting solutions to influence the color stability of acrylic resins.…”

Section: Discussionsupporting

confidence: 92%

“…Therefore, as in the case of distilled water used in some studies 19,20 , since artificial saliva artificial was a solution that contained no pigmenting agents, it was expected to present the lowest color change values 4 . However, it should be pointed out that one of the limitations of this study is the fact that the intraoral environment has saliva with the presence of proteins and enzymes, in addition to being associated with innumerable temperature variations, factors not present in an in vitro study 2 .…”

Section: Discussionmentioning

confidence: 95%

“…The principle of using temporary restorations is to meet requisites such as pulp protection, marginal integrity, wear resistance, esthetics 1 and to reestablish masticatory function for a limited period, until it is possible to insert the definitive dental prosthesis 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Some authors have related that PMMA-based resins undergo less color change over time, when compared with the other resins 2,7 , while other studies have observed similarity in the color stability of different temporary materials 8,9 .…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of color stability of different temporary restorative materials

Mazaro

Minani

Zavanelli

et al. 2015

Rev. odontol. UNESP

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ResumoIntrodução: Os materiais restauradores provisórios são amplamente utilizados, porém pouco se sabe a respeito de sua estabilidade de cor. Objetivo: Avaliar a estabilidade de cor de materiais restauradores provisórios: resina acrílica e resinas bisacrílicas, após a imersão em soluções pigmentantes, durante diferentes períodos de armazenamento. Material e método: Quatro materiais foram testados (Dêncor/Clássico, Protemp 4/3M ESPE; Structur 2 SC/Voco; Luxatemp AM Plus/DMG) sendo confeccionadas 30 amostras (15 mm de diâmetro e 2 mm de espessura) por material. Estes foram divididos de acordo com o meio de imersão (saliva artificial, saliva + refrigerante tipo cola e saliva + café) e período de armazenamento (2, 5, 7 e 15 dias). As mensurações de cor foram realizadas antes e após as imersões, com auxílio de um espectrofotômetro, através do sistema CIE L*a*b*. Os dados foram analisados com análise de variância (ANOVA) e Tukey, com nível de significância à 5%. Resultado: A resina acrílica apresentou maior estabilidade de cor quando comparada às resinas bisacrílicas (p<0,001). Comparando as resinas bisacrílicas, não foi observado diferença significativa entre as resinas Structur e Luxatemp (p=0,767). Em relação as soluções testadas, o café apresentou os maiores valores de alteração de cor (p<0,001), sendo que quanto maior o período de armazenamento, maior foi a alteração de cor de todos os materiais provisórios analisados (p<0,001). Conclusão: A resina acrílica apresentou maior estabilidade de cor, quando comparada às bisacrílicas. O café causou a maior alteração de cor, e o tempo de imersão foi determinante na estabilidade de cor dos materiais provisórios analisados. Descritores:Restauração dentária temporária; cor; prótese dentária. AbstractIntroduction: Temporary restorative materials are widely used, however, little is know about their color stability. Objective: to evaluate the color stability of the following temporary restorative materials: acrylic and bis-acrylic resins after immersion in pigmenting solutions for different periods of storage. Material and method: Four materials were tested (Dêncor/Clássico, Protemp 4/3M ESPE; Structur 2 SC/Voco; Luxatemp AM Plus/DMG) and 30 test specimens (15 mm in diameter and 2 mm thick) per material were fabricated. They were divided according to the storage medium (artificial saliva, saliva + cola type soda, and saliva + coffee) and storage time intervals (2, 5, 7 and 15 days). Color measurements were made before and after immersions, with use of a spectrophotometer, by means of the CIE L*a*b* system. The data were analyzed by the analysis of variance and the Tukey Test, at a level of significance of 5%. Result: Acrylic resin presented greater color stability in comparison with bis-acrylic resins (p<0.001). When bis-acrylic resins were compared no significant difference was observed between the resins Structur and Luxatemp (p=0.767). As regards solutions tested, coffee showed the highest color change values (p<0.001), and the longer the storage time interval, the greater...

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of color stability of different temporary restorative materials

Mazaro

Minani

Zavanelli

et al. 2015

Rev. odontol. UNESP

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The color stability and wear resistance of provisional implant restorations: A prospective clinical study

Alevizakos

Mitov

Teichert

et al. 2020

Clinical & Exp Dental Res

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Objectives: The aim of the present clinical study was to determine the stability of color and resistance against abrasion and attrition of provisional single implant restorations. Material and Methods: A group of 16 patients were treated with provisional crowns made of Telio CAD. Shortly before the insertion the crowns were photographed and scanned using a 3D-laser scanner. After 8 weeks of clinical usage, the crowns were photographed and scanned again. The vertical occlusal wear and color changes between the restorations were measured. Results: The occlusal plane of the original crown showed a statistically significant reduction of 0.052 mm ± 0.037 mm 8 weeks after placement (p < .05). For the stability of color, a change in red, green and blue was described. All three scopes (red, green and blue) showed a statistically significant reduction (p < .05). Conclusions: This prospective clinical study showed that Telio CAD experienced a significant occlusal reduction and color change after an intraoral placement of 8 weeks.

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Surface substance loss of subsurface bovine enamel lesions after different steps of the resinous infiltration technique: a 3D topography analysis

2011

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Surface substance loss of subsurface enamel lesions before (baseline/demineralization) and after each step of the infiltration technique was evaluated by means of a three-dimensional focus variation. Eighty enamel specimens were prepared and partially varnished (control). Non-varnished areas were demineralized (pH 4.95; 28 days), and etched with phosphoric acid gel (20%; 5 s). Specimens were randomly assigned to eight groups (n = 10), and were infiltrated using four resinous materials. In subgroups 1, polymerization and finishing with abrasive polishing strips followed. In subgroups 2, excess material was removed before polymerization (E1/E2-Excite, Vivadent; F1/F2-Fortify, Bisco; G1/G2-Glaze & Bond, DMG; I1/I2-Icon, DMG). Topometrical evaluation revealed a negligible substance loss of demineralized enamel. After etching, mean (±SD) differences of height decreased uniformly (-6.6 ± 2.0 μm; p = 0.089; ANOVA). For infiltrated lesions, DH of subgroups 1 was comparable to the etched lesions, with a significant increase (compared to etched lesions) in subgroups 2 (1.1 ± 0.1 μm; p < 0.001; t test). Within the limitations of this study, it is concluded that etching of initial subsurface lesions will result in significant surface substance loss; removal of excess material before light-curing should simplify the infiltration procedure, and this will avoid any abrasion resulting from polishing procedures.

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Effects of different food colorants and polishing techniques on color stability of provisional prosthetic materials

Cited by 101 publications

References 60 publications

Evaluation of color stability of different temporary restorative materials

Evaluation of color stability of different temporary restorative materials

The color stability and wear resistance of provisional implant restorations: A prospective clinical study

Surface substance loss of subsurface bovine enamel lesions after different steps of the resinous infiltration technique: a 3D topography analysis

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