-transparent.png){kind=logo}
OBJECTIVE To measure the effect of unilateral sustained clenching on the temporomandibular joints, changes in the minimum joint space dimension were assessed. METHODS Ten healthy subjects performed a sustained clench on a bite force transducer in the first molar region for 5 minutes with a constant force of 170 N. Three separate sagittal tomograms were bilaterally obtained with the transducer in place before clenching and during the beginning and at the end of the contraction. Changes were quantified with a computerized image analysis system. RESULTS The minimum joint space of the contralateral temporomandibular joint was significantly reduced both at the beginning and at the end of the contraction task. Further the minimum joint space was also significantly less at the end than at the beginning of the contraction even though bite force level was identical. The ipsilateral condyle images showed no significant shift in the minimum joint space. CONCLUSIONS These data suggest that unilateral molar clenching induces a significant reduction of the minimum joint space in the contralateral temporomandibular joint and a sustained condition remarkably increases this change.
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
January 2016,
Journal of oral & facial pain and headache,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
April 2020,
Biomechanics and modeling in mechanobiology,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
December 2020,
Journal of the mechanical behavior of biomedical materials,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
September 2012,
Journal of oral rehabilitation,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
December 2003,
Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
August 1999,
The Angle orthodontist,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
May 2024,
Journal of oral rehabilitation,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
February 1976,
Oral surgery, oral medicine, and oral pathology,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
July 1994,
Cranio : the journal of craniomandibular practice,
T Kuboki, and
Y Azuma, and
M G Orsini, and
Y Takenami, and
A Yamashita
June 2024,
Computer methods in biomechanics and biomedical engineering,
