Journal
JOURNAL OF THE ROYAL SOCIETY INTERFACE
Volume 10, Issue 84, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rsif.2013.0203
Keywords
computer-aided design; computer-aided manufacturing; additive manufacturing; rapid prototyping; rapid manufacturing
Categories
Funding
- Tekes (the Finnish Funding Agency for Technology and Innovation)
- Helsinki University Central Hospital Research Funds
- DeskArtes Oy
- EOS Finland Oy
- Vektor Claims Administration
- Planmeca Oy
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The aim of this study was to develop and evaluate a digital process for manufacturing of occlusal splints. An alginate impression was taken from the upper and lower jaws of a patient with temporomandibular disorder owing to cross bite and wear of the teeth, and then digitized using a table laser scanner. The scanned model was repaired using the 3DATA EXPERT software, and a splint was designed with the VISCAM RP software. A splint was manufactured from a biocompatible liquid photopolymer by stereolithography. The system employed in the process was SLA 350. The splint was worn nightly for six months. The patient adapted to the splint well and found it comfortable to use. The splint relieved tension in the patient's bite muscles. No sign of tooth wear or significant splint wear was detected after six months of testing. Modern digital technology enables us to manufacture clinically functional occlusal splints, which might reduce costs, dental technician working time and chair-side time. Maximum-dimensional errors of approximately 1 mm were found at thin walls and sharp corners of the splint when compared with the digital model.
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