In vitro comparative study of the surface properties of materials for removable prosthetic bases
Objectives: This work aimed to evaluate and compare the surface roughness, contact angle, and C. albicans adhesion in three materials for removable denture bases: polymethylmethacrylate and the thermoplastic resins polypropylene and polyolefin. Methods: Nine samples were manufactured, three of ea...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Portuguesa de Estomatologia e Medicina Dentária
2022-10-01
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| Series: | Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial |
| Subjects: | |
| Online Access: | http://administracao.spemd.pt/app/assets/imagens/files_img/1_19_633d3e80e2f86.pdf |
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| author | Margarida Sampaio-Fernandes Cláudio Ferreira Júnior Susana João Oliveira Ramiro Carneiro Martins João Carlos Sampaio-Fernandes Maria Helena Figueiral |
| author_facet | Margarida Sampaio-Fernandes Cláudio Ferreira Júnior Susana João Oliveira Ramiro Carneiro Martins João Carlos Sampaio-Fernandes Maria Helena Figueiral |
| author_sort | Margarida Sampaio-Fernandes |
| collection | DOAJ |
| description | Objectives: This work aimed to evaluate and compare the surface roughness, contact angle,
and C. albicans adhesion in three materials for removable denture bases: polymethylmethacrylate
and the thermoplastic resins polypropylene and polyolefin.
Methods: Nine samples were manufactured, three of each material (n=3): polypropylene,
polyolefin, and polymethylmethacrylate (control group). The thermoplastic resins were fabricated
by injection technique and the polymethylmethacrylate by compression technique.
After laboratory polishing, the surface roughness (Ra and Rz) was assessed with the 3D
optical roughness meter NPFLEX, and the contact angle was measured with the optical
tensiometer Contact angle system OCA15. C. albicans adhesion was assessed through colony-
forming unit assays (n=9). ANOVA and Kruskal-Wallis tests were done to compare groups,
considering a significance level of 0.05.
Results: All values obtained for the control group were lower than those obtained for the thermoplastic
resins. Statistically significant differences were found: for Ra between polypropylene
(0.15±0.072 μm) and polymethylmethacrylate (0.03±0.006 μm) (p=0.045); for the contact angle
between the three groups (p<0.001) – polymethylmethacrylate (26.57±6.719°), polypropylene
(57.57±11.098°), and polyolefin (69.06±8.955°); and for C. albicans adhesion between polymethylmethacrylate
and polypropylene (p=0.007) and polymethylmethacrylate and polyolefin (p=0.013).
Conclusions: In the tested conditions and for the materials assessed, polymethylmethacrylate
showed the lowest roughness, contact angle, and C. albicans adhesion, thus exhibiting
better properties for removable denture bases than the thermoplastic materials. |
| first_indexed | 2024-04-13T14:15:31Z |
| format | Article |
| id | doaj.art-8c91105abe774c00a1f7860575830eaa |
| institution | Directory Open Access Journal |
| issn | 1646-2890 1647-6700 |
| language | English |
| last_indexed | 2024-04-13T14:15:31Z |
| publishDate | 2022-10-01 |
| publisher | Sociedade Portuguesa de Estomatologia e Medicina Dentária |
| record_format | Article |
| series | Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial |
| spelling | doaj.art-8c91105abe774c00a1f7860575830eaa2022-12-22T02:43:39ZengSociedade Portuguesa de Estomatologia e Medicina DentáriaRevista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial1646-28901647-67002022-10-0163311712510.24873/j.rpemd.2022.09.876In vitro comparative study of the surface properties of materials for removable prosthetic basesMargarida Sampaio-Fernandes0https://orcid.org/0000-0002-9814-041XCláudio Ferreira Júnior1https://orcid.org/0000-0003-0949-5604Susana João Oliveira2https://orcid.org/0000-0002-6834-8703Ramiro Carneiro Martins3https://orcid.org/0000-0001-5588-6062João Carlos Sampaio-Fernandes4https://orcid.org/0000-0002-9781-6510Maria Helena Figueiral5https://orcid.org/0000-0001-8583-8096Universidade do Porto, Faculdade de Medicina Dentária, Porto, Portugal; Universidade do Porto, Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Porto, PortugalMestrado em Reabilitação Oral, Universidade do Porto, Faculdade de Medicina Dentária, Porto, PortugalUniversidade do Porto, Faculdade de Medicina Dentária, Porto, Portugal; Universidade do Porto, Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Porto, PortugalUniversidade do Porto, Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Porto, Portugal; Instituto Politécnico do Porto, Instituto Superior de Engenharia do Porto, PortugalUniversidade do Porto, Faculdade de Medicina Dentária, Porto, Portugal; Universidade do Porto, Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Porto, PortugalUniversidade do Porto, Faculdade de Medicina Dentária, Porto, Portugal; Universidade do Porto, Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Porto, PortugalObjectives: This work aimed to evaluate and compare the surface roughness, contact angle, and C. albicans adhesion in three materials for removable denture bases: polymethylmethacrylate and the thermoplastic resins polypropylene and polyolefin. Methods: Nine samples were manufactured, three of each material (n=3): polypropylene, polyolefin, and polymethylmethacrylate (control group). The thermoplastic resins were fabricated by injection technique and the polymethylmethacrylate by compression technique. After laboratory polishing, the surface roughness (Ra and Rz) was assessed with the 3D optical roughness meter NPFLEX, and the contact angle was measured with the optical tensiometer Contact angle system OCA15. C. albicans adhesion was assessed through colony- forming unit assays (n=9). ANOVA and Kruskal-Wallis tests were done to compare groups, considering a significance level of 0.05. Results: All values obtained for the control group were lower than those obtained for the thermoplastic resins. Statistically significant differences were found: for Ra between polypropylene (0.15±0.072 μm) and polymethylmethacrylate (0.03±0.006 μm) (p=0.045); for the contact angle between the three groups (p<0.001) – polymethylmethacrylate (26.57±6.719°), polypropylene (57.57±11.098°), and polyolefin (69.06±8.955°); and for C. albicans adhesion between polymethylmethacrylate and polypropylene (p=0.007) and polymethylmethacrylate and polyolefin (p=0.013). Conclusions: In the tested conditions and for the materials assessed, polymethylmethacrylate showed the lowest roughness, contact angle, and C. albicans adhesion, thus exhibiting better properties for removable denture bases than the thermoplastic materials.http://administracao.spemd.pt/app/assets/imagens/files_img/1_19_633d3e80e2f86.pdfcandida albicanscontact angledenture basepolymethylmethacrylatepolyolefinpolypropylenesurface roughness |
| spellingShingle | Margarida Sampaio-Fernandes Cláudio Ferreira Júnior Susana João Oliveira Ramiro Carneiro Martins João Carlos Sampaio-Fernandes Maria Helena Figueiral In vitro comparative study of the surface properties of materials for removable prosthetic bases Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial candida albicans contact angle denture base polymethylmethacrylate polyolefin polypropylene surface roughness |
| title | In vitro comparative study of the surface properties of materials for removable prosthetic bases |
| title_full | In vitro comparative study of the surface properties of materials for removable prosthetic bases |
| title_fullStr | In vitro comparative study of the surface properties of materials for removable prosthetic bases |
| title_full_unstemmed | In vitro comparative study of the surface properties of materials for removable prosthetic bases |
| title_short | In vitro comparative study of the surface properties of materials for removable prosthetic bases |
| title_sort | in vitro comparative study of the surface properties of materials for removable prosthetic bases |
| topic | candida albicans contact angle denture base polymethylmethacrylate polyolefin polypropylene surface roughness |
| url | http://administracao.spemd.pt/app/assets/imagens/files_img/1_19_633d3e80e2f86.pdf |
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