Electronic Resource
Oxford UK
:
Blackwell Science Ltd
Journal of oral rehabilitation
28 (2001), S. 0
ISSN:
1365-2842
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Medicine
Notes:
Nocturnal bite force during sleep associated bruxism was measured in 10 subjects. Hard acrylic dental appliances were fabricated for the upper and lower dentitions of each subject. Miniature strain-gauge transducers were mounted to the upper dental appliance at the right and left first molar regions. In addition, thin metal plates that contact the strain-gauge transducers were attached to the lower dental appliance. After a 1-week familiarization with the appliances, nocturnal bite force was measured for three nights at the home of each subject. From the 30 recordings, 499 bruxism events that met the definition criteria were selected. The above described system was also used to measure the maximum voluntary bite forces during the daytime. The mean amplitude of detected bruxism events was 22·5 kgf (s.d. 13·0 kgf) and the mean duration was 7·1 s (s.d. 5·3 s). The highest amplitude of nocturnal bite force in individual subjects was 42·3 kgf (15·6–81·2 kgf). Maximum voluntary bite force during the daytime was 79·0 kgf (51·8–99·7 kgf) and the mean ratio of nocturnal/daytime maximum bite force was 53·1% (17·3–111·6%). These data indicate that nocturnal bite force during bruxism can exceed the amplitude of maximum voluntary bite force during the daytime.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1046/j.1365-2842.2001.00692.x
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