K. Ohkura et al., Changes in bite force and occlusal contact area after orthognathic surgeryfor correction of mandibular prognathism, ORAL SURG O, 91(2), 2001, pp. 141-145
Citations number
19
Categorie Soggetti
Dentistry/Oral Surgery & Medicine
Journal title
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS
Objective. This study examined the long-term changes of bite force and occl
usal contact area in patients with prognathous after orthognathic surgery w
ith a newly developed pressure-sensitive sheet (Dental-Prescale; Fuji Photo
Film Co).
Study Design. Fifty-seven patients with prognathous were examined. Bite for
ce and occlusal contact area were measured just before operation and at 2 w
eeks, 1 month, 3 months, 6 months, 1 year, 2 years, and 3 years after opera
tion. Forty control subjects with normal occlusion were also measured.
Results. The bite force and occlusal contact area of the patients were sign
ificantly greater than the preoperative level at 1 year, 2 years, and 3 yea
rs after operation. However, they were still significantly lower than the c
ontrol subject level even at 3 years after operation.
Conclusions. This study suggests that orthognathic surgery improves the bit
e force and occlusal contact area of patients with prognathous. However, at
3 years from the time of operation, patients had not reached control subje
ct levels.