Measure of bite force and. occlusal contact area before and. after bilateral sagittal split ramus osteotomy of the mandible using a new pressure-sensitive device: A preliminary report
Measure of bite force and. occlusal contact area before and. after bilateral sagittal split ramus osteotomy of the mandible using a new pressure-sensitive device: A preliminary report
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DOI：
10.1016/s0278-2391(00)90913-3
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发表时间：
2000-04-01
影响因子：
1.9
通讯作者：
Enomoto, S
中科院分区：
文献类型：
--
作者：
Harada, K;Watanabe, M;Enomoto, S
目的：应用新研制的压敏片(Dental-Presale，富士胶片公司，日本东京)测量下颌前突患者双侧下颌升支矢状劈开截骨术前后咬合力和咬合接触面积。分别于术前、术后2周、4周、8周，术后3个月、6个月测量咬合力和咬合接触面积。结果：患者的咬合力和咬合接触面积在术后2周最低，8周~3个月恢复到术前水平。随后缓慢升高，术后6个月超过术前水平。然而，即使在6个月后，患者的咬合力和咬合接触面积仍只有健康受试者的一半或更少。结论：该压敏装置可以作为正颌手术后患者术后恢复和咬合改善的简单指标。
Purpose: This study examined bite force and occlusal contact area in prognathic patients before and after bilateral sagittal split ramus osteotomy of the mandible using a newly developed pressure-sensitive sheet (Dental-Prescale, Fuji Photo Film Co, Tokyo, Japan).Patients and Methods: Twenty-five prognathic patients were examined. Bite force and occlusal contact area were measured preoperatively, at 2, 4, and 8 weeks, and at 3 and 6 months, after surgery. The bite force and occlusal contact area of 20 healthy subjects were also measured.Results: Both bite force and occlusal contact area of the patients were the lowest 2 weeks after surgery and recovered to the preoperative level between 8 weeks and 3 months. Subsequently, they increased slowly and exceeded the preoperative level at 6 months after surgery. However, even at 6 months, both the bite force and the occlusal contact area of the patients were still only about half or less than that of healthy subjects.Conclusion: This pressure-sensitive device can be used as a simple indicator of postoperative recovery and occlusal improvement in patients following orthognathic surgery.