دورية أكاديمية
Correlation between fluoride release, surface hardness and diametral tensile strength of restorative glass ionomer cements.
| العنوان: | Correlation between fluoride release, surface hardness and diametral tensile strength of restorative glass ionomer cements. |
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| المؤلفون: | Pardi M; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil., da Cunha BM; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil., Cunha HM; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil., Marques MES; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil., Ribeiro KL; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil., Cruz CE; Department of Chemistry, Institute of Exact, Natural and Educational Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil., Costa CR; Department of Chemistry, Institute of Exact, Natural and Educational Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil., Lepri CP; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil., de Castro DT; Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil. |
| المصدر: | Journal of clinical and experimental dentistry [J Clin Exp Dent] 2024 May 01; Vol. 16 (5), pp. e610-e615. Date of Electronic Publication: 2024 May 01 (Print Publication: 2024). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Medicina Oral Country of Publication: Spain NLM ID: 101603132 Publication Model: eCollection Cited Medium: Print ISSN: 1989-5488 (Print) Linking ISSN: 19895488 NLM ISO Abbreviation: J Clin Exp Dent Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: [Spain] : Medicina Oral |
| مستخلص: | Background: The aim of this study was to determine if there is a correlation between fluoride release, surface hardness, and diametral tensile strength of restorative glass ionomer cements (GICs). Material and Methods: Conventional (Riva Self Cure) and resin-modified (Riva Light Cure) GICs were used. Thirty-four samples (ø 6 x 3 mm) were prepared for each cement. The kinetics of fluoride release (n=4) was evaluated over 28 days using a fluoride-selective electrode (ISE 4010-C00). The analysis of surface hardness (n=10) was performed using a microhardness tester (Shimadzu HMV-2000, Japan) with a Knoop indenter and a load of 25 gf for 30 seconds. The diametral tensile strength test (n=10) was conducted on a universal testing machine at a speed of 0.75 mm/min. Fluoride release data were analyzed by two-way repeated measures ANOVA and Bonferroni post hoc test, while independent t-test was used for other analyses (α=0.05). Results: Overall, the groups showed higher fluoride release until day 7 and a progressive decrease until day 28. On day 1 and day 21, Riva Self Cure showed a higher level of release than Riva Light Cure ( p =0.026). Riva Light Cure showed higher diametral tensile strength ( p <0.0001) and surface hardness ( p =0.034) than Riva Self Cure. A negative correlation was found, indicating that higher fluoride release is associated with lower surface hardness and diametral tensile strength. Conclusion: Fluoride release and mechanical performance are related properties of GICs, and these properties exhibit different values depending on the type of material. Resin-modified GIC release less fluoride but exhibit better mechanical performance compared to conventional GIC. Key words: Diametral Tensile Strength, Fluoride, Glass Ionomer Cement, Surface Hardness. Competing Interests: The authors declare no conflict of interest. (Copyright: © 2024 Medicina Oral S.L.) |
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| تواريخ الأحداث: | Date Created: 20240711 Latest Revision: 20240712 |
| رمز التحديث: | 20240712 |
| مُعرف محوري في PubMed: | PMC11231896 |
| DOI: | 10.4317/jced.61499 |
| PMID: | 38988758 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1989-5488 |
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| DOI: | 10.4317/jced.61499 |