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Cuspal Flexure and the Failure of Class V Restorations
| Content Provider | Scilit |
|---|---|
| Author | Rees, J. S. |
| Copyright Year | 2020 |
| Description | Class V restorations is a clinical occurrence which is often blamed on inadequate moisture control. However, the effects of occlusal forces and cuspal movement may also have an effect. The aim of this study was to examine the effects that cuspal movement had on the shear forces around a buccal Class V composite restoration in a lower second premolar. A lower first premolar restored with a buccal Class V composite restoration and a class I composite or amalgam restoration were modelled using a 2-D plane strain mesh. The width of the occlusal restoration was varied from 2.1–3.7 mm and the cavity depth was varied from 1.7–3.7 mm. Compared to the unrestored premolar, the presence of an occlusal cavity restored with composite increased the interfacial forces around the buccal Class V restoration by 1–67%. Similarly, the presence of an amalgam occlusal restoration increased the interfacial forces by 9–228%. It was found that the presence of an occlusal restoration increased cuspal movement which in turn increased the shear forces around the buccal Class V cavity. This effect was more pronounced with increases in cavity depth compared to cavity width, and when amalgam was the occlusal restorative material. Book Name: Computer Methods in Biomechanics & Biomedical Engineering – 2 |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2008-0-40171-5&isbn=9781003078289&doi=10.1201/9781003078289-96&format=pdf |
| Ending Page | 736 |
| Page Count | 8 |
| Starting Page | 729 |
| DOI | 10.1201/9781003078289-96 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-09-10 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Computer Methods in Biomechanics & Biomedical Engineering – 2 Dentistry and Oral Surgery Composite Restoration Cuspal Movement Restorations Class |
| Content Type | Text |
