Erosion effects on chemical composition and morphology of dental materials and root dentin

Soares, Luís Eduardo Silva; Lima, Luciana Reinaldo; Vieira, Laís de Souza; Santo, Ana Maria do Espírito; Martin, Aírton Abrahão

doi:10.1002/jemt.21115

Cited by 27 publications

(24 citation statements)

References 33 publications

(79 reference statements)

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“…However, X-ray fluorescence microanalysis has been little used to study erosive effects on root dentin (11). The X-ray fluorescence spectrometry measuring energy-dispersive ions is a nondestructive analytical technique applied to analyze tooth mineral content.…”

Section: In Vitro Assessment Of Dentin Erosion After Immersion In Acimentioning

confidence: 99%

In Vitro assessment of dentin erosion after immersion in acidic beverages: surface profile analysis and energy-dispersive X-ray fluorescence spectrometry study

et al. 2012

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The aim of this study was to investigate the effects of some acidic drinks on dentin erosion, using methods of surface profile (SP) analysis and energy-dispersive X-ray fluorescence spectrometry (EDXRF). One hundred standardized dentin slabs obtained from bovine incisor roots were used. Dentin slabs measuring 5x5 mm were ground flat, polished and half of each specimen surface was protected with nail polish. For 60 min, the dentin surfaces were immersed in 50 mL of 5 different drinks (Gatorade®, Del Valle Mais orange juice®, Coca-Cola®, Red Bull® and white wine), 20 blocks in each drink. The pH of each beverage was measured. After the erosive challenge, the nail polish was removed and SP was analyzed. The mineral concentration of dentin surfaces was determined by means of EDXRF. Data were analyzed statistically by ANOVA and Tukey's test (α=0.05). SP analysis showed that Red-Bull had the highest erosive potential (p<0.05). EDXRF results exhibited a decrease in phosphate in the groups immersed in Red-Bull, orange juice and white wine (p<0.05), and no significant difference in calcium content between the reference surface and eroded surface. In conclusion, this study demonstrated that all studied beverages promoted erosion on root dentin and Red Bull had the highest erosive potential. There was no correlation between pH of beverages and their erosive potential and only the P content changed after erosive challenge.

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Section: In Vitro Assessment Of Dentin Erosion After Immersion In Acimentioning

confidence: 99%

In Vitro assessment of dentin erosion after immersion in acidic beverages: surface profile analysis and energy-dispersive X-ray fluorescence spectrometry study

et al. 2012

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“…However, it is not known if the fluoride concentration released would be able to offer some benefit to the dentin, either for the inhibition of demineralization or the activation of dentin remineralization. Also, the actual role of fluoride release in restorative materials in erosion prevention is not yet fully understood 9 .…”

Section: Introductionmentioning

confidence: 99%

Bond strength of composite resin containing biomaterial S-PRG to eroded dentin

Lourenço¹,

Ayres²,

Mantilla³

et al. 2017

Braz. J. Oral Sci.

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Aim: To evaluate the bond strength of composite resin containing or not biomaterial (S-PRG) to sound/eroded dentine. Methods: Occlusal dentin of 30 human molars (n=15) had half of its surface kept uneroded, while on the other half an erosive lesion was produced by cycling in citric acid (pH 2.3) and supersaturated solution (pH 7.0). On both eroded (ED) and non-eroded (SD) substrates, two restorative systems (containing or not S-PRG) were tested. Composite resin cylinders were built and, after storage in water (24h), were submitted to bond strength test. The analysis of the fracture pattern was performed under an optical microscope (40x). The obtained values of bond strength (MPa) were submitted to ANOVA (two factors) and Tukey multiple comparisons tests (p<0.05). Results: According to the results, there was difference between substrates (<0.001) and restorative materials (p=0.002) evaluated. For the microtensile bond strength, the values obtained were: SDNB (47.6±12.2 MPa), SDWB (34.1±15.8 MPa), EDNB (31.1±8.3 MPa) and EDWB (15.5±13.6 MPa), revealing a statistically significant difference in the evaluated substrates and restorative materials. Conclusion: Bond strength of eroded substrate is inferior to the sound substrate and the restorative system containing S-PRG biomaterial influences negatively the results of bonding to sound/eroded dentin.

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“…A desmineralização da dentina ocorre mais rapidamente do que no esmalte uma vez que possui um menor teor mineral (DE-MELO et al, 2011;POGGIO et al, 2013) e pH crítico para dissolução de 6,7 contra 5,5 do esmalte (PONDURI;MACDONALD;ADDY, 2005). Nesse caso, a erosão é caracterizada por uma perda mineral centrípeta a partir das áreas peritubulares, seguida por uma desmineralização intertubular, resultando na remoção da camada de esfregaço e exposição dos túbulos dentinários (SOARES et al, 2012).…”

Section: Introductionunclassified

Efeito dos tratamentos dessensibilizantes na evolução de lesões erosivas na dentina

Sanches¹

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Aos meus primos e primas, tios e tias e afilhadas, adoro vocês! À minha segunda família, Maria Ângela, Mário, Vó Neusa (in memorian), Rodrigo e Mateus, pelos momentos agradáveis que passamos juntos. Às minhas amigas, Gabriela, Ana Maria, Carolina, Aninha, Gi e Cássia, saudade de vocês! A todos que, de alguma forma, contribuíram para a realização deste trabalho, seja pela ajuda constante ou por uma palavra de amizade.

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Erosion effects on chemical composition and morphology of dental materials and root dentin

Abstract: Composite resin had the best chemical resistance to erosion among all the materials. Fluoride contained in GIC seemed to cause some protection, however, with material degradation. Chemical interaction of tooth-colored dental materials with root dentin could be assessed by μ-EDXRF.

Cited by 27 publications

References 33 publications

In Vitro assessment of dentin erosion after immersion in acidic beverages: surface profile analysis and energy-dispersive X-ray fluorescence spectrometry study

In Vitro assessment of dentin erosion after immersion in acidic beverages: surface profile analysis and energy-dispersive X-ray fluorescence spectrometry study

Bond strength of composite resin containing biomaterial S-PRG to eroded dentin

Efeito dos tratamentos dessensibilizantes na evolução de lesões erosivas na dentina

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