Marginal Adaptation and Color Stability of Four Provisional Materials

Givens, Edward J.; Neiva, Gisele F.; Yaman, Peter; Dennison, Joseph B.

doi:10.1111/j.1532-849x.2007.00256.x

Cited by 62 publications

(79 citation statements)

References 18 publications

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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%

“…Guaranteeing the color stability of temporary restorative materials is an essential factor with great influence on the success of prosthetic rehabilitations, considering that during the stage of temporary restorations, patients concentrate their concern on the function and esthetics of the restorations 16 .…”

Section: Discussionmentioning

confidence: 99%

“…Monomers and their derivatives tend to provide better mechanical properties, low changes in temperature, reduction in polymerization shrinkage, and excellent polishing, thereby increase the practicality of fabricating temporary dental prostheses 4,16 .…”

Section: Discussionmentioning

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: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of color stability of different temporary restorative materials

Mazaro

Minani

Zavanelli

et al. 2015

Rev. odontol. UNESP

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“…1 Long-term interim FDPs require materials that have color stability and mechanical properties that ensure adequate fracture strength and sufficient dimensional and marginal stability. [2][3][4][5] Polyethyl and polymethyl methacrylates (PEMA and PMMAs) are conventional chairside materials used in direct and indirect restorative procedures. Bis-acryl, based on multifunctional methacrylic acid esters, has similar properties to those of conventional materials and is also used in the direct technique.…”

mentioning

confidence: 99%

Comparative study of interim materials for direct fixed dental prostheses and their fabrication with CAD/CAM technique

Peñate

Basilio

Roig

et al. 2015

The Journal of Prosthetic Dentistry

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“…IDS was intended to provide advantages such as protection from infiltration and bacterial leakage during the provisional restoration stage, reduction of potential risk for postcementation sensitivity, minimization of anesthesia required during cementation of the definitive restoration, and improved bond strength to the tooth structure [6], as well as addressing the primary problem of reduced shear bond strength associated with provisional treatment. A key element in IDS is the development of an effective bond between the existing resin coating and the new luting composite resin [7], considering that bond strength could start to decreased after 7 days after IDS procedure [20].…”

Section: Resultsmentioning

confidence: 99%