Research Articles (Prosthodontics)

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    A comparison of conventional root canal sealers with ones That use green synthesized nanoparticles for antimicrobial activity: protocol for a systematic review
    (JMIR Publications Inc., 2024) Mohamed, Abubaker; Ismail, Enas; Adam, Razia Z
    Background: Root canal failure and secondary endodontic infection are frequent clinical scenarios in dentistry. The main microorganisms implicated in root canal therapy failure are persistent Enterococcus faecalis, Candida albicans, and Staphylococcus aureus. To combat the impact of disease resistance, scientists are concentrating on alternative antimicrobial root canal sealers. Nanomaterials are a recent development in endodontic materials that exhibit great antimicrobial properties, making them an ideal material choice for root canal sealers. Objective: This systematic review aims to compare the antimicrobial properties of conventional root canal sealers to those incorporating green synthesized nanoparticles between 2010 and 2024. Methods: A well-constructed protocol was established and registered with PROSPERO (CRD42021286373). Ethics approval was obtained from the Biomedical Research and Ethics Committee from the University of the Western Cape (UWC; BM22/1/4). PRISMA-P (Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols) reporting guidelines were followed. The included criteria demonstrate the green synthesized nanoparticles studies where the nanoparticles (NPs) are incorporated in root canal sealers. MeSH (Medical Subject Headings) terms were used for the search strategy of the systematic electronic databases for articles published in English between 2010 and 2024. The selected databases included Scopus, PubMed, Web of Science, Science Direct, EBSCOhost, SpringerLink, and Wiley Online. A quality assessment tool for laboratory studies will be used to critically appraise the included studies. If applicable, statistical measures (mean, SD, etc) will be used for data analysis and presentation of the results. Results: The protocol is registered with PROSPERO. A preliminary search was conducted using a determined search strategy across 8 electronic databases, and the review is now complete. Conclusions: It is anticipated that the results of this systematic review may reveal the increased interest and application for nanoparticle-enhanced root canal sealers. This will aid in the future development of root canal sealants and mitigate the risk of endodontic failure.
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    Clinical assessment strategies for competency-based education in prosthetic dentistry
    (John Wiley and Sons Inc, 2024) Khan, Saadika B; Maart, Ronel
    Reflective practice is viewed as a theoretical and pedagogical concept in higher education having several diverse approaches and interpretations. The most important aspect of reflective practice is that it is a necessary quality assurance aspect of higher education which should occur recurrently and at different stages of the program. It usually entails an evaluation of advanced instructions which has become the norm in an educational setting, in order to improve the learning outcomes. Reflective practice must therefore be seen as a tool which allows continuous improvement, modifications, and changes to educational approaches, which include theoretical and clinical assessment strategies. Academics in prosthetic dentistry at a research-led university reflected on their current assessment strategies used in the senior undergraduate dental program as part of a quality assurance process and its global comparability. This paper aims to share and explain the importance of reviewing assessment strategies in higher education, especially in such a clinical program using reflective practice as a framework. Different assessment strategies used over a 5-year period are explored and their different structures, expectations, and appropriateness for a clinical program are reported from the literature. The concerns were addressed in a cyclical manner within this framework, and Blooms and blueprinting implemented where appropriate. We conclude that without a validated definition and framework for regular reflective practices, and guidelines to modify the included assessment strategies, the quality assurance within a competency-based dental program may be compromised.
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    Comparing cytocompatibility of two fluoride-containing solutions and two resin-based restorative materials—a pilot study
    (Frontiers Media SA, 2024) Mulder, Riaan; Noordien, Naeemah; Potgieter, Nicoline
    Background: Cytocompatibility should always be considered, especially if the surface of treated carious lesions is close to soft tissue or is accidentally exposed to the oral soft tissue by the clinician. Methods: The aim of the present study was to compare the cytocompatibility of two fluoride-containing liquids and two resin-containing restorative materials with buccal mucosa fibroblasts. The fluoride-containing materials were silver diamine fluoride and water-based silver fluoride. Results: The statistical analysis was completed by comparing the positive control growth of the buccal mucosa fibroblasts to the growth of cells exposed to various materials. The one-way ANOVA with Tukey’s HSD result was completed. All the assessed materials compared to the control wells for both the 24 and 48 h time intervals indicated a significant cytocompatibility result, except for the test wells with Stela (SDI) at the 24 h time interval. There was no significant difference between the step 2 liquids and the two dental materials in cytocompatibility at the 24 h interval. All four materials indicated no significant differences between the cytocompatibility of any dental materials for 48 h. Conclusion: The cytocompatibility assessment for Riva Star and Riva Star Aqua with the direct method in a full dispensing drop is not viable for step 1 of the fluoride-containing liquids. The use of Stela Light Cure is a suitable material that will be in contact with buccal mucosa as it showed potential for increased cytocompatibility compared to Riva Light Cure. Riva Star Aqua is more cytocompatible than Riva Star.