Influence of Tooth Mold Materials in Composite Resin CAD/CAM Crown Destructive Test
| Autor: | Toru Sato, Syuntaro Nomoto, Hideshi Sekine, Gen Kuroishi, Yosuke Maeda, Tomotoshi Masuda, Mizuho Hirano, Mariko Yumoto |
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| Rok vydání: | 2021 |
| Předmět: |
Dental Stress Analysis
Materials science medicine.medical_treatment Composite number Abutment CAD medicine.disease_cause Composite Resins Crown (dentistry) 03 medical and health sciences Dental Materials 0302 clinical medicine stomatognathic system Mold Destructive testing Materials Testing medicine Animals Humans Composite material 030223 otorhinolaryngology Crowns technology industry and agriculture 030206 dentistry General Medicine Resin Cements Dental Prosthesis Design Fracture (geology) Cattle Adhesive |
| Zdroj: | The Bulletin of Tokyo Dental College. 62(1) |
| ISSN: | 0040-8891 |
| Popis: | A range of experimental designs have been used in destructive testing of composite resin CAD/CAM crowns. Various materials have been adopted for the abutment in such tests, including human or bovine dentin, stainless steel, PMMA, and composite resin, the selection of which is made in accordance with study objective or preference of the researcher. The purpose of this study was to determine how the material selected for the abutment material affected fracture load and maximum displacement. Destructive tests were conducted on composite resin crowns of the same design. Three types of material were used for the abutments together with 2 types of adhesive material. Images of each sample were acquired before destruction using a microfocus X-ray CT scanner to confirm the feasibility of a non-destructive test.The load required to fracture the composite CAD/CAM resin crowns depended on the abutment material used, with a decrease being observed in the order of composite resin, stainless steel, and PMMA. Maximum displacement decreased in the order of PMMA, composite resin, and stainless steel. Differences in the material used for setting (adhesive resin or polycarboxylate cement) showed no effect on fracture load. These results indicate that the load required to achieve destruction of resin CAD/CAM crowns varies according to the abutment material used. |
| Databáze: | OpenAIRE |
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