Physical, Mechanical And Environmental Properties Of Denture Base Poly(Methyl Methacrylate) Filled With Hydroxyapatite
| dc.contributor.author | Mohamed Aldabib, Jamal Moammar | |
| dc.date.accessioned | 2019-10-02T06:51:41Z | |
| dc.date.available | 2019-10-02T06:51:41Z | |
| dc.date.issued | 2011-07 | |
| dc.description.abstract | In the field of dental materials, poly(methyl methacrylate) PMMA resin maintains itself to be the most popular and suitable material for the fabrication of denture bases in removable prosthodontics. However, the fracture of acrylic denture base occurs intra-orally because of the stress intensification which is subjected during the function or when the dentures are accidentally dropped on a hard surface. In this study, the incorporation of hydroxyapatite ceramic (HA) powder into PMMA was carried out in order to find out the effect of HA incorporation on the physical, mechanical and environmental properties of the acrylic denture base. This is as well as investigating the effect of some other factors which are considered key factors in determining the overall properties of the composite, i. e. effect of physical mixing as a function of time, coupling agent ratio and HA filler concentration. The HA powder was treated with different ratios of the silane coupling agent 3-(trimethoxysily) propyl methacrylate (i. e. 0, 5, 7, and 10% by weight) with respect to the HA powder in order to evaluate the effect of coupling agent ratio. Three different ratios (i. e. 5, 10, and 15% by weight) of the treated filler were added into the matrix (PMMA and 0.5% BPO) to be compared with pure PMMA and the conventional material. The powder components were mixed using the planetary ball milling technique (PBM) for 10, 20, 30 and 40 min respectively to study the effect of mixing time. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/8897 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | Denture Base Poly(Methyl Methacrylate) | en_US |
| dc.subject | Hydroxyapatite | en_US |
| dc.title | Physical, Mechanical And Environmental Properties Of Denture Base Poly(Methyl Methacrylate) Filled With Hydroxyapatite | en_US |
| dc.type | Thesis | en_US |
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