Fracture susceptibility of worn teeth
An experimental simulation study is made to determine the effects of occlusal wear on the capacity of teeth to resist fracture. Tests are carried out on model dome structures, using glass shells to represent enamel and epoxy filler to represent dentin. The top of the domes are ground and polished to...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/13187 |
| _version_ | 1848748280561795072 |
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| author | Keown, A. Bush, M. Ford, Chris Lee, J. Constantino, P. Lawn, B. |
| author_facet | Keown, A. Bush, M. Ford, Chris Lee, J. Constantino, P. Lawn, B. |
| author_sort | Keown, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | An experimental simulation study is made to determine the effects of occlusal wear on the capacity of teeth to resist fracture. Tests are carried out on model dome structures, using glass shells to represent enamel and epoxy filler to represent dentin. The top of the domes are ground and polished to produce flat surfaces of prescribed depths relative to shell thickness. The worn surfaces are then loaded axially with a hard sphere, or a hard or soft flat indenter, to represent extremes of food contacts. The loads required to drive longitudinal cracks around the side walls of the enamel to failure are measured as a function of relative wear depth. It is shown that increased wear can inhibit or enhance load-bearing capacity, depending on the nature of the contact. The results are discussed in the context of biological evolutionary pressures. |
| first_indexed | 2025-11-14T07:02:32Z |
| format | Journal Article |
| id | curtin-20.500.11937-13187 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:02:32Z |
| publishDate | 2012 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-131872017-09-13T14:59:17Z Fracture susceptibility of worn teeth Keown, A. Bush, M. Ford, Chris Lee, J. Constantino, P. Lawn, B. Critical load Teeth Enamel Worn surfaces Longitudinal fracture An experimental simulation study is made to determine the effects of occlusal wear on the capacity of teeth to resist fracture. Tests are carried out on model dome structures, using glass shells to represent enamel and epoxy filler to represent dentin. The top of the domes are ground and polished to produce flat surfaces of prescribed depths relative to shell thickness. The worn surfaces are then loaded axially with a hard sphere, or a hard or soft flat indenter, to represent extremes of food contacts. The loads required to drive longitudinal cracks around the side walls of the enamel to failure are measured as a function of relative wear depth. It is shown that increased wear can inhibit or enhance load-bearing capacity, depending on the nature of the contact. The results are discussed in the context of biological evolutionary pressures. 2012 Journal Article http://hdl.handle.net/20.500.11937/13187 10.1016/j.jmbbm.2011.08.028 Elsevier restricted |
| spellingShingle | Critical load Teeth Enamel Worn surfaces Longitudinal fracture Keown, A. Bush, M. Ford, Chris Lee, J. Constantino, P. Lawn, B. Fracture susceptibility of worn teeth |
| title | Fracture susceptibility of worn teeth |
| title_full | Fracture susceptibility of worn teeth |
| title_fullStr | Fracture susceptibility of worn teeth |
| title_full_unstemmed | Fracture susceptibility of worn teeth |
| title_short | Fracture susceptibility of worn teeth |
| title_sort | fracture susceptibility of worn teeth |
| topic | Critical load Teeth Enamel Worn surfaces Longitudinal fracture |
| url | http://hdl.handle.net/20.500.11937/13187 |