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2013 Jul-Sep; Vol 4, No 3:e4 |
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Developing a New Appliance to Dissipate Mechanical Load on Teeth and Improve Limitation of Vertical Mouth Opening J Oral Maxillofac Res 2013 (Jul-Sep);4(3):e4 doi:10.5037/jomr.2013.4304 |
Developing a New Appliance to Dissipate Mechanical Load on Teeth and Improve Limitation of Vertical Mouth Opening
1Department of Dentistry, Oral and Maxillofacial Plastic and Reconstructive Surgery, Yamagata University Hospital, Yamagata, Japan.
2Department of Anatomy and Cell biology, School of Medicine, Faculty of Medicine, Yamagata University, Yamagata, Japan.
3Department of Dentistry, Oral and Maxillofacial Plastic and Reconstructive Surgery, School of Medicine, Faculty of Medicine, Yamagata University, Yamagata, Japan.
aThe first two authors contributed equally to this work.
Corresponding author:
Department of Anatomy and Cell biology
School of Medicine, Faculty of Medicine, Yamagata University
2-2-2 Iidanishi, Yamagata 990-9585
Japan
Phone: +81 23 6285209
Fax: +81 23 6285210
E-mail: ttanaka@med.id.yamagata-u.ac.jp
ABSTRACT
Objectives: The principle of leverage to superpose the convex surfaces of two shells was applied to develop a device for treating limitation of mouth opening and called it the "shell-shaped mouth opener" and analyzed pressure on the teeth with the TheraBite® appliance and the shell-shaped mouth opening appliance.
Material and Methods: To compare the TheraBite® appliance and the shell-shaped mouth opening appliance, pressure on the teeth in the dentition model with both devices was analyzed using the Inastomer® flexible conductive sensor.
Results: The load was better dispersed to each tooth in the shell-shaped mouth opening appliance in the all quadrants compared to the TheraBite® appliance.
Conclusions: The present study revealed that the shell-shaped mouth opening appliance which was originally invented in our lab, dissipated the mechanical load on teeth more evenly than the TheraBite® appliance.
J Oral Maxillofac Res 2013 (Jul-Sep);4(3):e4
doi:10.5037/jomr.2013.4304
Accepted for publication: 19 September 2013
Keywords: mouth rehabilitation; dental stress analysis.
To cite this article: Developing a New Appliance to Dissipate Mechanical Load on Teeth and Improve Limitation of Vertical Mouth Opening. J Oral Maxillofac Res 2013;4(3):e4 URL: http://www.ejomr.org/JOMR/archives/2013/3/e4/v4n3e4ht.htm |
Received: 10 July 2013 | Accepted: 19 September 2013 | Published: 1 October 2013
Copyright: © The Author(s). Published by JOMR under CC BY-NC-ND 3.0 licence, 2013.