Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method
Objective: To compare flexure strength (FS) and surface roughness properties of conventional heat polymerized (CHP) and three-dimensionally printed (3DP) denture base resins and study the effect of plasma surface treatment on these properties. Material and Methods: Rectangular resin samples (65 × 1...
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista
2025-05-01
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| Series: | Brazilian Dental Science |
| Online Access: | https://ojs.ict.unesp.br/index.php/cob/article/view/4568 |
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| author | Ahmed Abdulraheem Meki Mohamed Khalaf Hosam Muhammed Elsayed Fayez El-Hossary Mahmoud Ammar Emad Boriqaa Abd Elsalam |
| author_facet | Ahmed Abdulraheem Meki Mohamed Khalaf Hosam Muhammed Elsayed Fayez El-Hossary Mahmoud Ammar Emad Boriqaa Abd Elsalam |
| author_sort | Ahmed Abdulraheem Meki |
| collection | DOAJ |
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Objective: To compare flexure strength (FS) and surface roughness properties of conventional heat polymerized (CHP) and three-dimensionally printed (3DP) denture base resins and study the effect of plasma surface treatment on these properties. Material and Methods: Rectangular resin samples (65 × 10 × 3.3 mm3) were fabricated from two material groups: CHP and 3DP resins (N=24/material group). Each group was divided into control and treated groups (n=12/subgroup) to study their flexural strength and surface roughness properties. A comparative evaluation of these properties was performed between the control groups at first. Afterwards, treated groups were exposed to low pressure atmospheric plasma treatment and were compared with control (untreated) samples regarding changes in their properties both before and after plasma treatment. Results: The surface properties of control CHP groups showed higher FS (p<0.0001) and lower surface roughness (p=0.0002) than the 3DP group. Generally, when compared to the control group of each material, the plasma-treated CHP group and the treated 3DP group showed significant increase in FS (p<0.0001). Surface roughness significantly increased in treated group of CHP (p<0.0001) but had no significant change in treated 3DP group (p=0.068). Conclusion: Conventional heat polymerized denture base resins possess superior flexural strength and lower surface roughness compared to 3D printed resins. Plasma surface treatment is an effective method to strengthen both CHP and 3DP denture base resins and roughen (micro-etch) CHP resin surfaces toward further chemical reactions.
KEYWORDS
Acrylic denture base; Plasma; Polymethyl methacrylate; Surface treatment; Three-dimensional printing.
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| format | Article |
| id | doaj-art-1f2e8d97b0914e768e7f1cf88c236ca9 |
| institution | Kabale University |
| issn | 2178-6011 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Brazilian Dental Science |
| spelling | doaj-art-1f2e8d97b0914e768e7f1cf88c236ca92025-08-21T14:05:12ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112025-05-0128110.4322/bds.2025.e4568Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment methodAhmed Abdulraheem Meki0https://orcid.org/0009-0001-7430-0175Mohamed Khalaf1https://orcid.org/0000-0003-0529-6720Hosam Muhammed Elsayed2https://orcid.org/0009-0000-5174-469XFayez El-Hossary3https://orcid.org/0000-0001-9289-0650Mahmoud Ammar4https://orcid.org/0000-0002-4963-5854Emad Boriqaa Abd Elsalam5https://orcid.org/0009-0004-9007-2397Sphinx University, Faculty of Dentistry, Department of Prosthodontics. Assiut, Egypt.Sohag University, Faculty of Science, Physics Department. Sohag, Egypt.Al Azhar University (Assiut Branch), Faculty of Oral and Dental Medicine, Dental Biomaterial Department. Assiut, Egypt.Sohag University, Faculty of Science, Physics Department. Sohag, Egypt.Al Azhar University (Assiut Branch), Faculty of Oral and Dental Medicine, Department of Prosthodontics. Assiut, Egypt.Al Azhar University (Assiut Branch), Faculty of Oral and Dental Medicine, Department of Prosthodontics. Assiut, Egypt. Objective: To compare flexure strength (FS) and surface roughness properties of conventional heat polymerized (CHP) and three-dimensionally printed (3DP) denture base resins and study the effect of plasma surface treatment on these properties. Material and Methods: Rectangular resin samples (65 × 10 × 3.3 mm3) were fabricated from two material groups: CHP and 3DP resins (N=24/material group). Each group was divided into control and treated groups (n=12/subgroup) to study their flexural strength and surface roughness properties. A comparative evaluation of these properties was performed between the control groups at first. Afterwards, treated groups were exposed to low pressure atmospheric plasma treatment and were compared with control (untreated) samples regarding changes in their properties both before and after plasma treatment. Results: The surface properties of control CHP groups showed higher FS (p<0.0001) and lower surface roughness (p=0.0002) than the 3DP group. Generally, when compared to the control group of each material, the plasma-treated CHP group and the treated 3DP group showed significant increase in FS (p<0.0001). Surface roughness significantly increased in treated group of CHP (p<0.0001) but had no significant change in treated 3DP group (p=0.068). Conclusion: Conventional heat polymerized denture base resins possess superior flexural strength and lower surface roughness compared to 3D printed resins. Plasma surface treatment is an effective method to strengthen both CHP and 3DP denture base resins and roughen (micro-etch) CHP resin surfaces toward further chemical reactions. KEYWORDS Acrylic denture base; Plasma; Polymethyl methacrylate; Surface treatment; Three-dimensional printing. https://ojs.ict.unesp.br/index.php/cob/article/view/4568 |
| spellingShingle | Ahmed Abdulraheem Meki Mohamed Khalaf Hosam Muhammed Elsayed Fayez El-Hossary Mahmoud Ammar Emad Boriqaa Abd Elsalam Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method Brazilian Dental Science |
| title | Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method |
| title_full | Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method |
| title_fullStr | Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method |
| title_full_unstemmed | Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method |
| title_short | Comparative study of conventional and 3D printed denture base polymers: effect of low-pressure plasma as a surface treatment method |
| title_sort | comparative study of conventional and 3d printed denture base polymers effect of low pressure plasma as a surface treatment method |
| url | https://ojs.ict.unesp.br/index.php/cob/article/view/4568 |
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