Article ID Journal Published Year Pages File Type
5638475 British Journal of Oral and Maxillofacial Surgery 2016 5 Pages PDF
Abstract
The aim of the present study was to compare prebent and manually-bent plates used in maxillary advancement. The prebent plates were fixed in polyurethane blocks for the linear test and aluminium blocks for the cyclic test, and the manually-bent plates were fixed in polyurethane and aluminium blocks. The linear load tests were done using an Instron® 4411 mechanical testing machine and the cyclic test with an Instron® E3000 testing machine. The linear mechanical test showed that there was no significant difference between the plates. In the cyclic test the prebent plates reached the limit of 500 000 cycles without fracturing whereas the manually-bent plate group fractured before reaching the limit of cycles (p = 0.008). The decision to use prebent or manually-bent plates during operations should be influenced by the production of the bends and their consequent brittleness.
Related Topics
Health Sciences Medicine and Dentistry Dentistry, Oral Surgery and Medicine
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