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Published on: October 27, 2023
[The influence on masticatory function after curved osteotomy of prominent mandibular angle]
Wu-yuan Tan1, Shuang Qiu, Meng Wang
1Cranimaxillofacial Center, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100144, China.
Objective:
To investigate the influence of mandibular curved osteotomy on masticatory function by analyzing the bite force before and after operation.
Methods:
From Jan. to Oct. 2008, 20 female cases underwent mandibular curved osteotomy. The maximal bite force in incisor area, bilateral premolar area and molar area was measured before operation and 6 months after operation.
Results:
The maximal bite force in incisor area, right premolar area, left premolar area, right molar area, left molar area was (11.7 +/- 3.9) kg, (23.2 +/- 1.6) kg, (30.9 +/- 2.3) kg, (35.6 +/- 4.2) kg, (38.5 +/- 3.1) kg, respectively before operation; and was (11.9 +/- 2.1) kg, (23.0 +/- 4.5) kg (31.0 +/- 1.8) kg,(35.9 +/- 3. 5) kg. (38.5 +/- 2.7) kg, respectively 6 months after operation. The postoperative maximal bite force reached the preoperative level, and even slightly above it. There was no significant difference between the measured data before operation and 6 months afterward (P > 0.05).
Conclusions:
The curved osteotomy of prominent mandibular angle has no long-term effect on masticatory function.
