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Statement Of Problem: Soft liners are essential for denture wearers, which aids in the healing of soft tissue injuries caused by rough denture base surfaces. Silicone soft liners, while effective, can accumulate biofilm over time, necessitating enhancement.
Purpose: This in vitro study aimed to assess the efficacy of silicone soft liners incorporating varying concentrations of cerium oxide nanoparticles.
Materials And Methods: A stainless-steel die as per ISO standard 10139-2-2018 (35 × 6 mm), Using G*Power 3.0.10 software, 400 samples were prepared with 95 % confidence interval and 80 % power. Samples were divided into five groups: surface morphology (Group A), surface hardness (Group B), wettability (Group C), cytotoxicity (Group D), and antifungal property (Group E). Each group was subdivided based on cerium oxide nanoparticle concentrations. Samples were stored in artificial saliva until evaluation. Surface morphology was examined via scanning electron microscopy (SEM), surface hardness using Shore A Durometer, wettability by drop shape analysis, cytotoxicity via MTT assay, and antifungal properties using crystal violet staining.Data were assessed for normal distribution using Kolmogorov-Smirnov and Shapiro-Wilk tests.
Results: SEM analysis showed optimal nanoparticle dispersion in Group A2(0.25 %) and A3 (0.5 %). Group B2 (0.25 %) exhibited the lowest mean surface hardness, decreasing from day 1 to day 30. Group C3 demonstrated the most hydrophobic surface across days. Group D2 exhibited the least cytotoxicity at all time intervals. Group E4 displayed the highest antifungal activity.
Conclusion: Within study limitations, silicone soft liners modified with 0.25 % and 0.5 % cerium oxide nanoparticles exhibited superior properties in surface hardness and cytotoxicity. Optimal surface morphology and wettability were observed with 0.5 % concentration, while antifungal efficacy peaked at 1 %. These findings suggest clinical potential for treating damaged oral tissues.
Clinical Implications: Soft liners modified with 0.25 % and 0.5 % cerium oxide nanoparticles may benefit patients with oral tissue abuse, offering enhanced therapeutic properties.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11381783 | PMC |
http://dx.doi.org/10.1016/j.jobcr.2024.08.003 | DOI Listing |
Cureus
August 2025
Prosthodontics, Kerala University of Health Sciences, Thrissur, IND.
Background and objectives With the continuous presence of microflora, saliva, and frequent intake of coloured food, the colour stability of any aesthetic material may become compromised. Hence, the present study was conducted to evaluate the influence of tea, coffee, and turmeric solutions on the colour stability of commercially available heat-cured and autopolymerizing denture base acrylic resins as well as a soft lining material. Methods Twenty-four rectangular samples measuring 20 mm × 15 mm × 2 mm were prepared for each type of test material.
View Article and Find Full Text PDFSci Rep
August 2025
Department of Orthopaedic and Traumatology, Trabzon Kanuni Training and Research Hospital, 61250, Trabzon, Turkey.
The mechanical behavior of prosthetic liners significantly influences stress distribution, soft tissue protection, and the overall efficiency of the prosthetic. While extensive research has been conducted on liner materials, the impact of liner thickness (2 mm, 4 mm, and 6 mm) on biomechanical response remains underexplored. This study utilizes finite element analysis in Abaqus to investigate how liner material (Gel vs.
View Article and Find Full Text PDFJBJS Essent Surg Tech
August 2025
Department of Orthopaedics, Faculty of Medicine, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.
Background: Over the last 30 years, total ankle arthroplasty (TAA) has become a viable surgical option for end-stage ankle arthritis. The aim of TAA is to relieve pain and preserve ankle joint range of motion, which, by definition, shields adjacent joints. Alignment is essential for the longevity and survival of TAA, since malalignment of TAA components can cause abnormal loading patterns with subsequent polyethylene wear and early implant failure.
View Article and Find Full Text PDFSci Rep
August 2025
University of Wollongong, EIS, NSW, Wollongong, 2520, Australia.
The thin spray-on liner (TSL) is widely used in the seal engineering of mines. TSL with high bearing capability is a new method that can be used to replace metal mesh in the roadway support of underground coal mines. This method exhibits the advantages of fast development, automation, and applicability of geo-conditions.
View Article and Find Full Text PDFArthroplast Today
August 2025
Adult Reconstruction and Joint Replacement Department, Hospital for Special Surgery, New York, NY, USA.
Background: Dislocation is a common complication after head and liner exchange. Although surgical approach has been shown to influence instability rate following primary total hip replacement, the same has not been demonstrated for head and liner exchange. The effect of additional soft tissue release to achieve exposure in revision surgery has been implicated in this finding.
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