Effect of prolonged erosive pH cycling on different restorative materials

Honório, Heitor Marques; Ríos, Daniela; Francisconi, Luciana Fávaro; Magalhães, Ana Carolina; Machado, Maria Aparecida de Andrade Moreira; Buzalaf, Marília Afonso Rabelo

doi:10.1111/j.1365-2842.2008.01856.x

Cited by 75 publications

(93 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…10,14,26 In agreement with this theory, Villalta et al 25 stated that low pH may indeed affect the surface integrity of composite resins, and for this reason, it could also promote an increase in the susceptibility to staining.…”

Section: Discussionmentioning

confidence: 55%

“…In addition to color alteration, some of these products can also cause superficial degradation on the composite surface by reducing its microhardness, 14 which could possibly favor more superficial staining. Corroborating this theory, Okte et al 15 showed decreased microhardness values of microhybrid and nano resin composites after immersion in both, coffee and wine solutions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interaction between staining and degradation of a composite resin in contact with colored foods

et al. 2011

View full text Add to dashboard Cite

Composite resins might be susceptible to degradation and staining when in contact with some foods and drinks. This study evaluated color alteration and changes in microhardness of a microhybrid composite after immersion in different colored foods and determined whether there was a correlation between these two variables. Eighty composite disks were randomly divided into 8 experimental groups (n = 10): kept dry; deionized water; orange juice; passion fruit juice; grape juice; ketchup; mustard and soy sauce. The disks were individually immersed in their respective test substance at 37 ºC, for a period of 28 days. Superficial analysis of the disk specimens was performed by taking microhardness measurements (Vickers, 50 g load for 45 seconds) and color alterations were determined with a spectrophotometer (CINTRA 10-using a CIEL*a*b* system, 400-700 nm wavelength, illuminant d65 and standard observer of 2º) at the following times: baseline (before immersion), 1, 7, 14, 21 and 28 days. Results were analyzed by ANOVA and Tukey's test (p < 0.05). Both variables were also submitted to Pearson's correlation test (p < 0.05). The passion fruit group underwent the greatest microhardness change, while the mustard group suffered the greatest color alteration. Significant positive correlation was found between the two variables for the groups deionized water, grape juice, soy sauce and ketchup. Not all color alteration could be associated with surface degradation.

show abstract

Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Interaction between staining and degradation of a composite resin in contact with colored foods

et al. 2011

View full text Add to dashboard Cite

show abstract

“…The low pH of acidic foods and drinks reportedly induced pronounced erosive wear in these materials 12) . To be clinically successful, dental composites must be durable and have a high degree of wear resistance in the oral cavity 13,14) .…”

Section: Introductionmentioning

confidence: 99%

Surface hardness of different restorative materials after long-term immersion in sports and energy drinks

et al. 2012

View full text Add to dashboard Cite

The purpose of this study was to evaluate the effect of sports and energy drinks on the surface hardness of different restorative materials over a 6-month period. Forty-two disk-shaped specimens were prepared for each of the four restorative materials tested: Compoglass F, Filtek Z250, Filtek Supreme, and Premise. Specimens were immersed for 2 min daily, up to 6 months, in six storage solutions (n=7 per material for each solution): distilled water, Powerade, Gatorade, X-IR, Burn, and Red Bull. Surface hardness was measured at baseline, after 1 week, 1 month, and 6 months. Data were analyzed statistically using repeated measures ANOVA followed by the Bonferroni test for multiple comparisons (α=0.05). Surface hardness of the restorative materials was significantly affected by both immersion solution and immersion period (p<0.001). All tested solutions induced significant reduction in surface hardness of the restorative materials over a 6-month immersion period.

show abstract

“…It is known that during consumption, a beverage contacts the tooth surface and dental materials for only a short duration before it is washed away by saliva 19 . However, previous studies have evaluated the effects of erosive solutions on luting cement properties for prolonged exposures times, and they have not included saliva in the methodology 5,6 .…”

Section: Discussionmentioning

confidence: 99%

Effects of erosive challenge on the morphology and surface properties of luting cements

Gondim

Medeiros

Costa

et al. 2016

Rev. odontol. UNESP

View full text Add to dashboard Cite

ResumoIntrodução: Poucos estudos investigaram as propriedades de superfície de cimentos após desafio erosivo. Objetivo: Avaliar a rugosidade da superfície (Ra), dureza Vickers (VHN) e morfologia de superfície de 4 cimentos após desafio erosivo. Material e método: Vinte amostras de cada cimento foram preparadas (4×2mm) e divididas em grupo experimental (desafio erosivo) e controle (saliva artificial) (n=10): Rely X U200 (U200); Rely X ARC (ARC); Ketac Cem Easy Mix (Ketac) e Fosfato de Zinco (ZnP). O desafio erosivo foi realizado com quatro ciclos erosivos diárias (90s) em bebida à base de cola e 2h em saliva artificial durante 7 dias. As leituras de Ra e VHN foram realizadas antes e após erosão. A porcentagem de perda de dureza (%VHN) foi obtida depois da erosão. A morfologia de superfície foi analisada por microscopia eletrônica de varredura (MEV). Foram utilizados testes de ANOVA, Tukey e T-Student (α=0,05). Resultado: Após a erosão, foi observado aumento dos valores de Ra em todos os cimentos testados, e os grupos U200 e ZNP tiveram a maior %VHN. Após imersão em saliva, apenas os grupos U200 e ZnP tiveram aumento significativo nos valores de Ra e não houve diferenças significativas entre os grupos quanto à %VHN. A análise em MEV mostrou que os grupos Ketac e ZNP apresentaram superfícies rugosas e porosas, e o grupo U200 apresentou maior degradação da matriz comparado ao grupo ARC. Conclusão: O desafio erosivo com bebida a base de cola afetou as propriedades de superfície de todos os cimentos.Descritores: Erosão dentária; cimentos de resina; cimentos de ionômero de vidro; testes de dureza. AbstractIntroduction: Few studies investigated the surface properties of luting cements after erosive challenge. Objective: To evaluate the surface roughness (Ra), Vickers hardness (VHN) and morphology of 4 luting cements after erosive challenge. Material and method: Twenty specimens of each cement were prepared (4×2mm) and divided into experimental (erosive challenge) and control (artificial saliva) groups (n=10): Rely X U200 (U200); Rely X ARC (ARC); Ketac Cem Easy Mix (Ketac) and Zinc phosphate (ZnP). The erosive challenge was performed by four daily erosive cycles (90s) in a cola drink and 2 h in artificial saliva over 7 days. Ra and VHN readings were performed before and after erosion. The percentage of hardness loss (%VHN) was obtained after erosion. The surface morphology was analyzed by scanning electron microscopy (SEM). ANOVA, Tukey and Student-T tests were used (α=0.05). Result: After erosion, all luting cements had increase in Ra values and U200 and ZnP groups had the highest %VHN. After saliva immersion, only U200 and ZnP groups had significant increases in Ra values and there were no significant differences among the groups in %VHN. SEM analysis showed that Ketac and ZnP groups had rough and porous surfaces, and U200 group had higher resin matrix degradation than ARC group. Conclusion: Erosive challenge with a cola drink affected the surface properties of all luting cements.

show abstract

Effect of prolonged erosive pH cycling on different restorative materials

Cited by 75 publications

References 25 publications

Interaction between staining and degradation of a composite resin in contact with colored foods

Interaction between staining and degradation of a composite resin in contact with colored foods

Surface hardness of different restorative materials after long-term immersion in sports and energy drinks

Effects of erosive challenge on the morphology and surface properties of luting cements

Contact Info

Product

Resources

About