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Developing a New Appliance to Dissipate Mechanical Load on Teeth and Improve Limitation of Vertical Mouth Opening

Author(s): Takashi Satomi | Toshiaki Tanaka | Takehito Kobayashi | Mituyoshi Iino

Journal: Journal of Oral & Maxillofacial Research
ISSN 2029-283X

Volume: 4;
Issue: 3;
Start page: e4;
Date: 2013;
Original page

Keywords: mouth rehabilitation | dental stress analysis.

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.
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