Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications
Background: Nanoparticles such as multi-walled carbon nanotubes present resistance, resilience and biocompatibility with human tissues and could be incorporated into glass ionomer cement materials to improve their characteristics. Therefore, the aim of the present study was to evaluate the effect of...
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| Format: | Article |
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MDPI AG
2021-07-01
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| Series: | Oral |
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| Online Access: | https://www.mdpi.com/2673-6373/1/3/19 |
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| author | Manuela Spinola Amanda Maria Oliveira Dal Piva Patrícia Uchôas Barbosa Carlos Rocha Gomes Torres Eduardo Bresciani |
| author_facet | Manuela Spinola Amanda Maria Oliveira Dal Piva Patrícia Uchôas Barbosa Carlos Rocha Gomes Torres Eduardo Bresciani |
| author_sort | Manuela Spinola |
| collection | DOAJ |
| description | Background: Nanoparticles such as multi-walled carbon nanotubes present resistance, resilience and biocompatibility with human tissues and could be incorporated into glass ionomer cement materials to improve their characteristics. Therefore, the aim of the present study was to evaluate the effect of multi-walled carbon nanotube (MWCNT) incorporation on different glass ionomer cements’ compressive (σc) and diametral tensile strengths (σt). Methods: Eighty (80) specimens were divided into four groups (N = 20/gr) according to the glass ionomer cement type (conventional and high-viscosity) and the presence or absence of multi-walled carbon nanotubes. Samples were kept in water for 24 h prior to the tests. Data were analyzed using two-way ANOVA and Tukey’s test (<i>p</i> = 0.05). Results: For both σc (<i>p</i> = 0.1739) and σt (<i>p</i> = 0.2183), the glass ionomer cements’ viscosity did not influence the results. The presence of MWCNTs decreased the mean compressive strength values (<i>p</i> = 0.0001) and increased the diametral tensile strength (<i>p</i> = 0.0059). For both conventional and high-viscosity glass ionomer cements, the compressive strength values were higher than the tensile strength data. Conclusions: Regardless of the cement viscosity, the multi-walled carbon nanotube incorporation reduced the compressive strength and increased the tensile strength values. |
| first_indexed | 2024-03-10T07:20:43Z |
| format | Article |
| id | doaj.art-e7620568bdcb4ab6ad556b5164e967a7 |
| institution | Directory Open Access Journal |
| issn | 2673-6373 |
| language | English |
| last_indexed | 2024-03-10T07:20:43Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Oral |
| spelling | doaj.art-e7620568bdcb4ab6ad556b5164e967a72023-11-22T14:40:53ZengMDPI AGOral2673-63732021-07-011319019810.3390/oral1030019Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental ApplicationsManuela Spinola0Amanda Maria Oliveira Dal Piva1Patrícia Uchôas Barbosa2Carlos Rocha Gomes Torres3Eduardo Bresciani4Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University—UNESP, São José Dos Campos 12220-000, BrazilDepartment of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University—UNESP, São José Dos Campos 12220-000, BrazilDepartment of Restorative Dentistry, Institute of Science and Technology, São Paulo State University—UNESP, São José Dos Campos 12220-000, BrazilDepartment of Restorative Dentistry, Institute of Science and Technology, São Paulo State University—UNESP, São José Dos Campos 12220-000, BrazilDepartment of Restorative Dentistry, Institute of Science and Technology, São Paulo State University—UNESP, São José Dos Campos 12220-000, BrazilBackground: Nanoparticles such as multi-walled carbon nanotubes present resistance, resilience and biocompatibility with human tissues and could be incorporated into glass ionomer cement materials to improve their characteristics. Therefore, the aim of the present study was to evaluate the effect of multi-walled carbon nanotube (MWCNT) incorporation on different glass ionomer cements’ compressive (σc) and diametral tensile strengths (σt). Methods: Eighty (80) specimens were divided into four groups (N = 20/gr) according to the glass ionomer cement type (conventional and high-viscosity) and the presence or absence of multi-walled carbon nanotubes. Samples were kept in water for 24 h prior to the tests. Data were analyzed using two-way ANOVA and Tukey’s test (<i>p</i> = 0.05). Results: For both σc (<i>p</i> = 0.1739) and σt (<i>p</i> = 0.2183), the glass ionomer cements’ viscosity did not influence the results. The presence of MWCNTs decreased the mean compressive strength values (<i>p</i> = 0.0001) and increased the diametral tensile strength (<i>p</i> = 0.0059). For both conventional and high-viscosity glass ionomer cements, the compressive strength values were higher than the tensile strength data. Conclusions: Regardless of the cement viscosity, the multi-walled carbon nanotube incorporation reduced the compressive strength and increased the tensile strength values.https://www.mdpi.com/2673-6373/1/3/19glass ionomer cementsdental materialscompressive strengthtensile strengthcarbon nanotubes |
| spellingShingle | Manuela Spinola Amanda Maria Oliveira Dal Piva Patrícia Uchôas Barbosa Carlos Rocha Gomes Torres Eduardo Bresciani Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications Oral glass ionomer cements dental materials compressive strength tensile strength carbon nanotubes |
| title | Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications |
| title_full | Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications |
| title_fullStr | Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications |
| title_full_unstemmed | Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications |
| title_short | Mechanical Assessment of Glass Ionomer Cements Incorporated with Multi-Walled Carbon Nanotubes for Dental Applications |
| title_sort | mechanical assessment of glass ionomer cements incorporated with multi walled carbon nanotubes for dental applications |
| topic | glass ionomer cements dental materials compressive strength tensile strength carbon nanotubes |
| url | https://www.mdpi.com/2673-6373/1/3/19 |
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