Bond Durability of Different Resin Cements to Caries-Affected Dentin Under Simulated Intrapulpal Pressure

Mohamed, MF; Deeb, HA El; Gomaa, Iman; Mobarak, EH

doi:10.2341/14-035-l

Cited by 9 publications

(7 citation statements)

References 33 publications

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“…Entretanto, na grande parte da rotina clínica, a dentina sofre alterações decorrentes de lesões de cárie (KOMORI et al, 2009;MOHAMED et al, 2014) e erodida (FRANCISCONI-DOS-RIOS et al, 2014). O entendimento de que a degradação desta camada ocorre por motivos relacionados tanto ao material resinoso quanto ao aspecto biológico da própria matriz dentinária tem permitido estratégias diversificadas, à luz dessas duas frentes simultaneamente.…”

Section: Resultsunclassified

“…Considerando o fator substrato, tem-se que a condição hígida representa um parâmetro de comparação, visto que este substrato não sofreu nenhum tipo de desafio. Já nas condições erodida e cariada, há modificações estruturais dentárias que podem interferir no processo adesivo (KOMORI et al, 2009;FRANCISCONI-DOS-RIOS et al, 2014;MOHAMED et al, 2014).…”

Section: Resultsunclassified

“…Uma vez que o estabelecimento da camada híbrida entrelaça a trama de colágeno, a sua degradação pode impactar na união. Desta forma, os resultados observados para as três condições de substrato estudadas estão em concordância o suporte que a literatura apresenta (KOMORI et al, 2009, FRANCISCONI-DOS-RIOS et al, 2014MOHAMED et al, 2014), negando a primeira hipótese nula.…”

Section: Resultsunclassified

“…Diante deste cenário, trabalhos que utilizam o substrato cariado afetado natural ou artificialmente criado tem sido empregados para avaliar o desempenho de diferentes abordagens adesivas (WANG et al, 2006;KOMORI et al, 2009;MOHAMED et al, 2014).…”

Section: Introductionunclassified

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Efeito de inibidores proteolíticos na adesão de dentina desmineralizada por cárie ou erosão

Giacomini¹

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Ishikiriama obrigadapor cada palavra, cada conselho e cada crítica, sempre construtiva, para a formação de pessoas e professionais melhores e completos. Cada elogio recebido me incentivou e me fez acreditar que eu estava no caminho certo. Aos professores de materiais dentários, Prof. Dr. Paulo Francisconie Profª. Drª. Ana Flávia Borges, pelos ensinamentos, pelos auxílios e por fazer o departamento de materiais dentários um ambiente agradável. Ao prof. Dr. Heitor Marques Honório, pela colaboração essencial na realização da estatística dessa pesquisa.

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Section: Resultsunclassified

Section: Introductionunclassified

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Efeito de inibidores proteolíticos na adesão de dentina desmineralizada por cárie ou erosão

Giacomini¹

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“…This difference may be attributed probably due to structural and chemical changes of carious dentin 53,54,55 as the denuded collagen fibrils of organic matrix are degraded 55,56 . In eroded dentin, the main modification relies on the mineral loss, without affecting suitable organic matrix.…”

Section: Discussionmentioning

confidence: 99%

How 10-MDP functional phosphate monomer and 2% digluconate chlorhexidine solution interact on sound, artificial carious or eroded dentin substrates

Jacomine¹

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How 10-MDP functional phosphate monomer and 2% digluconate chlorhexidine solution interact on sound, artificial carious or eroded dentin substrates Objective: Carious and eroded dentin represent common modified dental substrates, which mostly require restorative procedures. MDP-based dentin bonding system (DBS) and digluconate chlorhexidine (CHX) are presented as promising agents to minimize intrinsic degradation of the resin-dentin interface by interaction with calcium (Ca). Therefore, the purpose of this study was to explore the possible interaction between MDP in a universal adhesive system with 10-MDP in self-etching mode and CHX on substrates artificially modified by caries and erosion, through microtensile bond strength (µTBS). Additional characterization of the adhesive interface was performed by SEM/EDS analyses. Material and methods: Flat dentin surfaces were obtained from 120 specimens (n=20/group) prepared from extracted sound human third molars and randomly divided into three groups according to the dentin substrate: sound-control (S), artificial carious (C) and artificial eroded (E). Half of these specimens were pretreated with distilled water (W) and other half with 2% CHX, constituting 6 groups: S-W, S-CHX, C-W, C-CHX, E-W, E-CHX. After, all the specimens were restored with a universal adhesive system (Apder Single Bond Universal) using self-etching mode and two increments of composite resin (Filtek Z-350), following manufacturer's instructions. Slices (0.8mm) were obtained to SEM analysis and beams (0.64mm²) were obtained and evaluated by EDS analysis and µTBS in universal testing machine (500N/ 0.5mm/min) after 24 hours and 6 months. Data was statistically analyzed by two-way ANOVA and Tukey tests (p<0.05). Results: Substrate type was a statistically significant factor (p<0.0001), whereas the pretreatment (p=0.189), time (p=0.337) and the interaction between three factors (p=0.452) were not significant. Conclusion: Carious and eroded dentin substrates negatively interfered on the bond strength of an MDP-based universal adhesive systems, regardless its use with CHX. Likely, the reduction of available calcium from these substrates impaired the effectiveness of this system.

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Adhesive system properties and its behavior under simulated pulpal pressure in sound and caries-affected dentin and aging

SILVA

GONÇALVES

PONTES

et al. 2022

International Journal of Adhesion and Adhesives

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Bond Durability of Different Resin Cements to Caries-Affected Dentin Under Simulated Intrapulpal Pressure

Cited by 9 publications

References 33 publications

Efeito de inibidores proteolíticos na adesão de dentina desmineralizada por cárie ou erosão

Efeito de inibidores proteolíticos na adesão de dentina desmineralizada por cárie ou erosão

How 10-MDP functional phosphate monomer and 2% digluconate chlorhexidine solution interact on sound, artificial carious or eroded dentin substrates

Adhesive system properties and its behavior under simulated pulpal pressure in sound and caries-affected dentin and aging

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