Effect of Disinfectants on Elastic Modulus, Flexural Strength and Color Stability of Denture Base Resins

Bensel, Tobias; Bock, Jens; Zumpe, Lisa; Mansour, Sonia; Blümel, Nadine; Seeliger, Julia; Boeckler, Arne F.

doi:10.4236/ojst.2018.84013

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…The specimens immersed in CNF-NB-C (0.05, 0.10 and 0.20 wt%) and CNF-BB-A (0.05 and 0.10 wt%) solutions showed significantly higher values of flexural modulus when compared to those in the other groups, especially the blank and control groups. Some researchers reported that the immersing solutions (especially for disinfection) exerted no significant effects on flexural/elastic modulus after immersion when compared to distilled water 33,34) . A previous study suggested that the denture base material has a lower flexural/elastic modulus, and can release high forces on to the underlying mucosa thereby irritating the gingival tissues and promoting the resorption of the residual alveolar ridge 35) .…”

Section: Discussionmentioning

confidence: 99%

Use of cellulose nanofibers as a denture immersing solution

et al. 2020

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The purpose of this study was to investigate the influence of cellulose nanofibers (CNF) solution on the mechanical and biological properties of denture base resins (DBR). Two types of CNFs obtained from bamboo (BB) and needle-leaved (NB) trees were used in this study. We prepared 18 different CNF solutions based on their fibrillation (A-low, B-middle, and C-high) and concentration (0.05, 0.10, and 0.20 wt%). A heat-polymerized acrylic resin was used as DBR. The contact angles for each specimen were measured after immersion. The flexural properties of the immersed specimens, and the biological properties of the CNF solutions were examined. Specimens immersed in CNF-NB-C-0.05 wt% solution presented with the lowest contact angles. Specimens in CNF-NB-C and CNF-BB-A groups showed higher flexural modulus values. No cytotoxic or antimicrobial effects were observed for the CNF solutions. This study suggest that CNF solution may improve the surface wettability of the DBR without affecting its flexural property.

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Section: Discussionmentioning

confidence: 99%

Use of cellulose nanofibers as a denture immersing solution

et al. 2020

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“…A greater awareness of childhood psychology as well as demand from parents has led practitioners to offer aesthetic PCs. It has been shown that disinfectants can modify the colour stability of denture base resins (Bensel et al 2018 ). Similarly, persistent thermocycling of monolithic zirconia can produce significant colour and translucency changes (Koseoglu et al 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Decontamination practices of paediatric crowns: a systematic review

Hogerheyde

Walsh

Zafar

2022

Eur Arch Paediatr Dent

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Purpose A systematic review was conducted into paediatric crown decontamination practices using the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Method After database retrieval using predefined search terms, two reviewers independently applied the selection criteria, extracted the data, and assessed for risk of bias. From 92 potentially eligible studies, 10 were included for analysis. Results Steam sterilisation (autoclaving) was used as the gold standard for reducing biological contaminants on paediatric crowns across in vivo studies. However, autoclaving was associated with microstructural changes such as crazing and contour alterations. Furthermore, several tooth coloured crowns were liable to undergo colour changes from steam sterilisation. Conclusion Ambiguous manufacturer guidelines on protocols for reprocessing and reuse after biological exposure raises concerns regarding cross contamination and leaves practitioners open to potential litigation. A better understanding of the compatibility of paediatric crowns and decontamination practices is needed. More research into alternative chairside technologies that use low temperature, such as hydrogen peroxide gas plasma sterilisation, is warranted.

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