Influence of preparation method on mechanical characteristics of plaster
Introduction: Plaster is widely used in dentistry for the production of master casts, as a binder in investment materials and as an auxiliary material in the laboratory stages of denture production. Due to its brittleness, there is a constant need to improve its mechanical properties. In this regard...
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| Format: | Article |
| Language: | English |
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Medicinski fakultet i Klinika za stomatologiju, Niš
2021-01-01
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| Series: | Acta Stomatologica Naissi |
| Subjects: | |
| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/0352-5252/2021/0352-52522184266I.pdf |
| _version_ | 1818775300469686272 |
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| author | Igić Marko Kostić Milena Petković Dušan Gligorijević Nikola Dačić Stefan Stošić Nenad |
| author_facet | Igić Marko Kostić Milena Petković Dušan Gligorijević Nikola Dačić Stefan Stošić Nenad |
| author_sort | Igić Marko |
| collection | DOAJ |
| description | Introduction: Plaster is widely used in dentistry for the production of master casts, as a binder in investment materials and as an auxiliary material in the laboratory stages of denture production. Due to its brittleness, there is a constant need to improve its mechanical properties. In this regard, in the research we started from the assumption that increasing the proportion of powder during the preparation of plaster improves its mechanical properties. The aim of this research wasto determine the significance of the change in the ratio of powder and liquid to the mechanical characteristics of plaster (compressive strength). Material and methods: Three types of plaster were used in the research: type 2, 3 and 4. For each type of plaster, three samples were made with different ratio of powder and amount of water (n = 9). After 24 hours, the samples were analyzed at the Faculty of Mechanical Engineering in Niš, on a universal testing machine. Results: Plaster type 2 showed the lowest values of compressive strength, and higher values of types 3 and 4, regardless of the ratio of plaster powder and water. As the powder content increased, the compressive strength of the samples increased. Conclusion: In order to improve the compressive strength, the proportion of powder in the liquid phase can be increased during the preparation of the material without visible changes in its structure. |
| first_indexed | 2024-12-18T10:54:51Z |
| format | Article |
| id | doaj.art-b587c77657f94bb1890968c1c301cf43 |
| institution | Directory Open Access Journal |
| issn | 0352-5252 1820-1202 |
| language | English |
| last_indexed | 2024-12-18T10:54:51Z |
| publishDate | 2021-01-01 |
| publisher | Medicinski fakultet i Klinika za stomatologiju, Niš |
| record_format | Article |
| series | Acta Stomatologica Naissi |
| spelling | doaj.art-b587c77657f94bb1890968c1c301cf432022-12-21T21:10:22ZengMedicinski fakultet i Klinika za stomatologiju, NišActa Stomatologica Naissi0352-52521820-12022021-01-0137842266226610.5937/asn2184266I0352-52522184266IInfluence of preparation method on mechanical characteristics of plasterIgić Marko0Kostić Milena1https://orcid.org/0000-0002-5040-2396Petković Dušan2Gligorijević Nikola3Dačić Stefan4Stošić Nenad5Univerzitet u Nišu, Medicinski fakultet, Katedra stomatološka protetika, Niš, SerbiaUniverzitet u Nišu, Medicinski fakultet, Katedra stomatološka protetika, Niš, SerbiaUniverzitet u Nišu, Mašinski fakutet, Katedra za proizvodno-informacione tehnologije, Niš, SerbiaUniverzitet u Nišu, Medicinski fakultet, Katedra stomatološka protetika, Niš, SerbiaUniverzitet u Nišu, Medicinski fakultet, Katedra bolesti zuba i endodoncija, Niš, SerbiaUniverzitet u Nišu, Medicinski fakultet, Katedra bolesti zuba i endodoncija, Niš, SerbiaIntroduction: Plaster is widely used in dentistry for the production of master casts, as a binder in investment materials and as an auxiliary material in the laboratory stages of denture production. Due to its brittleness, there is a constant need to improve its mechanical properties. In this regard, in the research we started from the assumption that increasing the proportion of powder during the preparation of plaster improves its mechanical properties. The aim of this research wasto determine the significance of the change in the ratio of powder and liquid to the mechanical characteristics of plaster (compressive strength). Material and methods: Three types of plaster were used in the research: type 2, 3 and 4. For each type of plaster, three samples were made with different ratio of powder and amount of water (n = 9). After 24 hours, the samples were analyzed at the Faculty of Mechanical Engineering in Niš, on a universal testing machine. Results: Plaster type 2 showed the lowest values of compressive strength, and higher values of types 3 and 4, regardless of the ratio of plaster powder and water. As the powder content increased, the compressive strength of the samples increased. Conclusion: In order to improve the compressive strength, the proportion of powder in the liquid phase can be increased during the preparation of the material without visible changes in its structure.https://scindeks-clanci.ceon.rs/data/pdf/0352-5252/2021/0352-52522184266I.pdfplastercompressive strength |
| spellingShingle | Igić Marko Kostić Milena Petković Dušan Gligorijević Nikola Dačić Stefan Stošić Nenad Influence of preparation method on mechanical characteristics of plaster Acta Stomatologica Naissi plaster compressive strength |
| title | Influence of preparation method on mechanical characteristics of plaster |
| title_full | Influence of preparation method on mechanical characteristics of plaster |
| title_fullStr | Influence of preparation method on mechanical characteristics of plaster |
| title_full_unstemmed | Influence of preparation method on mechanical characteristics of plaster |
| title_short | Influence of preparation method on mechanical characteristics of plaster |
| title_sort | influence of preparation method on mechanical characteristics of plaster |
| topic | plaster compressive strength |
| url | https://scindeks-clanci.ceon.rs/data/pdf/0352-5252/2021/0352-52522184266I.pdf |
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