Incorporation of Arginine to Commercial Orthodontic Light-Cured Resin Cements—Physical, Adhesive, and Antibacterial Properties
| Autor: | Saulo Geraldeli, Marcus Vinicius Loureiro Bertolo, Isaac Jordão de Souza Araújo, Paolo Túlio Di Nizo, Marcelle M. Nascimento, V. Wallace McCarlie, Maurício Bottene Guarda, Mário Alexandre Coelho Sinhoreti, Lucas de Almeida Maia Carvalho |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
brackets Arginine Serial dilution arginine Article Ultimate tensile strength General Materials Science adhesive systems Cement Universal testing machine Microscopy QC120-168.85 Enamel paint biology Chemistry orthodontic resin cements QH201-278.5 biology.organism_classification Engineering (General). Civil engineering (General) Streptococcus mutans TK1-9971 Descriptive and experimental mechanics visual_art visual_art.visual_art_medium Adhesive Electrical engineering. Electronics. Nuclear engineering TA1-2040 Nuclear chemistry |
| Zdroj: | Materials Materials, Vol 14, Iss 4391, p 4391 (2021) Volume 14 Issue 16 |
| ISSN: | 1996-1944 |
| Popis: | (1) Background: The amino acid arginine is now receiving great attention due to its potential anti-caries benefits. The purpose of this in vitro study was to evaluate the shear bond strength (SBS), ultimate tensile strength (UTS), and antimicrobial potential (CFU) of two arginine-containing orthodontic resin cements. (2) Methods: Forty bovine incisors were separated into four groups (n = 10): Orthocem, Orthocem + arginine (2.5 wt%), Transbond XT, and Transbond XT + arginine (2.5 wt%). The brackets were fixed to the flat surface of the enamel, and after 24 h the SBS was evaluated using the universal testing machine (Instron). For the UTS test, hourglass samples (n = 10) were made and tested in a mini-testing machine (OM-100, Odeme). For the antibacterial test (colony forming unit-CFU), six cement discs from each group were made and exposed to Streptococcus mutans UA159 biofilm for 7 days. The microbiological experiment was performed by serial and triplicate dilutions. The data from each test were statistically analyzed using a two-way ANOVA, followed by Tukey’s test (α = 0.05). (3) Results: The enamel SBS mean values of Transbond XT were statistically higher than those of Orthocem, both with and without arginine (p = 0.02033). There was no significant difference in the SBS mean values between the orthodontic resin cements, either with or without arginine (p = 0.29869). The UTS of the Transbond XT was statistically higher than the Orthocem, but the addition of arginine at 2.5 wt% did not influence the UTS for either resin cement. The Orthocem + arginine orthodontic resin cement was able to significantly reduce S. mutans growth, but no difference was observed for the Transbond XT (p = 0.03439). (4) Conclusion: The incorporation of arginine to commercial orthodontic resin cements may be an efficient preventive strategy to reduce bacterial growth without compromising their adhesive and mechanical properties. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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