Influence of surface free energy of denture base and liner materials on<i>Candida albicans</i>biofilms

Silva, Wander José da; Leal, Cristiane Maria Brasil; Viu, Flávia Carvalho; Gonçalves, Letícia Machado; Barbosa, Célia Marisa Rizatti; Cury, Altair Antoninha Del Bel

doi:10.1111/jicd.12079

Cited by 25 publications

(30 citation statements)

References 22 publications

(106 reference statements)

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“…Several researchers suggested that the surface roughness of the materials is the most important factor affecting the adhesion of C. albicans . Light and electron microscopy studies reveal that initial adhesion of microorganisms generally begins in the pits and fissures of rough surfaces, which are known to provide protection against shear forces and provide time for irreversible adhesion of microbial cells to the surface.…”

Section: Discussionmentioning

confidence: 99%

“…Surface free energy is another factor affecting initial microbial adhesion and biofilm formation on material surfaces . In principle, materials with lower surface free energy (hydrophobic) exhibit a higher water contact angle .…”

Section: Discussionmentioning

confidence: 99%

“…No significant negative correlation between C. albicans adhesion and the hydrophobicity of denture base polymers was found, whereas a strong positive correlation between C. albicans adhesion and the surface roughness of denture base polymers was found. Several researchers 21,[24][25][26][27][28] suggested that the surface roughness of the materials is the most important factor affecting the adhesion of C. albicans. Light and electron microscopy studies 11,[24][25][26][27][28] reveal that initial adhesion of microorganisms generally begins in the pits and fissures of rough surfaces, which are known to provide protection against shear forces and provide time for irreversible adhesion of microbial cells to the surface.…”

Section: Discussionmentioning

confidence: 99%

“…Surface free energy is another factor affecting initial microbial adhesion and biofilm formation on material surfaces. 18,21,28,30,33,34 In principle, materials with lower surface free energy (hydrophobic) exhibit a higher water contact angle. 35 In this study, conventional PMMA-C showed a significantly higher contact angle, and consequently higher hydrophobicity when compared to CAD/CAM PMMA-based polymers in the uncoated groups.…”

Section: Discussionmentioning

confidence: 99%

“…[13][14][15][16][17] Numerous studies have investigated the relationship between a material's surface roughness and Candida colonization; however, few studies have assessed the interactions between saliva proteins, C. albicans, and the surface properties of polymers. [18][19][20][21][22] Preliminary research found no published studies on the adhesion of C. albicans to CAD/CAM PMMA-based polymers used for digital complete dentures. Therefore, this study aimed to investigate the correlation between surface parameters and C. albicans adhesion and to evaluate initial adhesion of C. albicans to artificially aged CAD/CAM PMMA-based polymers in the absence and presence of a salivary pellicle.…”

mentioning

confidence: 99%

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In Vitro Evaluation of Adhesion of Candida albicans on CAD/CAM PMMA‐Based Polymers

Murat

Alp

Alatalı

et al. 2018

Journal of Prosthodontics

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

In Vitro Evaluation of Adhesion of Candida albicans on CAD/CAM PMMA‐Based Polymers

Murat

Alp

Alatalı

et al. 2018

Journal of Prosthodontics

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Assessing the suitability of fused deposition modeling to produce acrylic removable denture bases

Alanazi,

Wood,

Shepherd

et al. 2024

Clinical & Exp Dental Res

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ObjectiveTo study the feasibility of using poly methyl methacrylate (PMMA) filament and fused deposition modeling (FDM) to manufacture denture bases via the development of a study that considers both conventional and additive‐based manufacturing techniques.Materials and MethodsFive sample groups were compared: heat and cold cured acrylic resins, CAD/CAM milled PMMA, 3D‐printed PMMA (via FDM), and 3D‐printed methacrylate resin (via stereolithography, SLA). All groups were subjected to mechanical testing (flexural strength, impact strength, and hardness), water sorption and solubility tests, a tooth bonding test, microbiological assessment, and accuracy of fit measurements. The performance of sample groups was referred to ISO 20795‐1 and ISO/TS 19736. The data was analyzed using one‐way ANOVA.ResultsSamples manufactured using FDM performed within ISO specifications for mechanical testing, water sorption, and solubility tests. However, the FDM group failed to achieve the ISO requirements for the tooth bonding test. FDM samples presented a rough surface finish which could ultimately encourage an undesirable high level of microbial adhesion. For accuracy of fit, FDM samples showed a lower degree of accuracy than existing materials.ConclusionsAlthough FDM samples were a cost‐effective option and were able to be quickly manufactured in a reproducible manner, the results demonstrated that current recommended testing regimes for conventionally manufactured denture‐based polymers are not directly applicable to additive‐manufactured denture base polymers. Therefore, new standards should be developed to ensure the correct implementation of additive manufacturing techniques within denture‐based fabrication workflow.

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Effect of the incorporation of cellulose nanocrystals into a microwave‐polymerized denture base resin: Cellulose nanocrystals into a denture base resin

et al. 2021

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The aim is to evaluate the mechanical, physical, and microbiological properties of a denture base resin (Onda-Cryl, microwave-polymerized), after the incorporation of cellulose nanocrystals (CNC). Mixtures of CNC and the resin are prepared at 0% (control group), 0.25%, 0.5%, 0.75% and 1% for the flexural strength (FS) and Vickers hardness (VH) tests. Due to the VH results, surface roughness (SR), surface free energy (SFE), and the single-and dual-species biofilm formation of Candida albicans and methicillin-susceptible Staphylococcus aureus (MSSA) for metabolic activity (XTT assay), antimicrobial activity (CFU mL −1 ) and confocal laser microscopy tests are performed for the groups 0% and 0.75% CNC. Data are statistically analyzed (𝜶 = .05). For FS, CNC at 0.25%, 0.5% and 0.75% are similar to the control. A significant increase of VH is observed at 0.75% and 1%. The 0.75% CNC group is similar to the control for the SFE and SR tests. There is no significant difference between control group and 0.75% CNC group for adhesion and biofilm formation of different microorganisms analyzed for XTT and CFU mL −1 . These results are corroborated by confocal microscopy images. The incorporation of CNC at 0.75% into a microwave-polymerized denture base resin provides promising results regarding VH and does not influence the physical, mechanical, and microbiological properties evaluated. These results suggest that the addition of CNC in the resin does not display surface alterations capable of increasing adhesion or biofilm formation of C. albicans or S. aureus.

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Influence of surface free energy of denture base and liner materials onCandida albicansbiofilms

Abstract: Increases in SFE from pellicle-coating leads to robust mature C. albicans biofilms on both denture materials.

Cited by 25 publications

References 22 publications

In Vitro Evaluation of Adhesion of Candida albicans on CAD/CAM PMMA‐Based Polymers

In Vitro Evaluation of Adhesion of Candida albicans on CAD/CAM PMMA‐Based Polymers

Assessing the suitability of fused deposition modeling to produce acrylic removable denture bases

Effect of the incorporation of cellulose nanocrystals into a microwave‐polymerized denture base resin: Cellulose nanocrystals into a denture base resin

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