• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of orofacial pain. >Experimental jaw-muscle pain has a differential effect on different jaw movement tasks.
【24h】

Experimental jaw-muscle pain has a differential effect on different jaw movement tasks.

机译：实验性颌骨肌肉疼痛对不同的颌骨运动任务具有不同的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

AIMS: To determine the effects of experimental jaw-muscle pain on jaw movements. METHODS: Mandibular mid-incisor point was tracked in 22 asymptomatic subjects during standardized (at 2.2 mm/s) protrusion, contralateral excursion, and open jaw movements, as well as free, right-sided chewing and chewing standardized for timing (900 ms/cycle). Tonic infusion of 4.5% hypertonic saline into the right masseter muscle maintained pain intensity between 30 and 60 mm on a 100-mm visual analog scale. Subjects performed tasks in 3 sessions on the same experimental day: control condition (baseline trials), test condition 1 (during hypertonic or 0.9% isotonic saline infusion), and test condition 2 (during isotonic or hypertonic saline infusion). RESULTS: In comparison with control, there were no significant effects of hypertonic saline infusion on amplitude or velocity for protrusion or contralateral jaw movements or on velocity for jaw opening. Jaw-opening amplitude was significantly smaller in comparison with control during hypertonic, but not isotonic, saline infusion. During free but not standardized chewing, subjects chewed faster and exhibited larger amplitude gapes during hypertonic and isotonic infusion in comparison with control. Therefore, it was unlikely that pain had an effect on the kinematic parameters of jaw movement during free chewing. Qualitatively, individual subject data revealed considerable variability in the effects of hypertonic saline on movement parameters, which suggests that the effect of pain on jaw movement may not be uniform between individuals. CONCLUSIONS: The data indicate that the effect of pain on jaw movement may vary with the task performed.
机译：目的：确定实验性颌骨肌肉疼痛对颌骨运动的影响。方法：在22名无症状受试者的标准前伸（2.2 mm / s），对侧偏移和下颌张开动作以及自由，右侧咀嚼和定时咀嚼标准化（900毫秒/秒）期间，追踪下颌中切牙点周期）。在100 mm的视觉模拟量表上，向右咬肌中补加4.5％高渗盐水，使疼痛强度保持在30至60 mm之间。受试者在同一实验日的3个阶段中执行任务：对照条件（基线试验），测试条件1（在高渗或0.9％等渗盐水注入过程中）和测试条件2（在等渗或高渗盐水注入过程中）。结果：与对照组相比，高渗盐水输注对突出或对侧颌骨运动幅度或速度或对颌骨张开速度没有明显影响。与高渗，但等渗盐水注入期间相比，张开幅度明显小于对照组。与对照组相比，在自由但非标准的咀嚼过程中，受试者咀嚼速度更快，在高渗和等渗输注过程中表现出更大的振幅间隙。因此，在自由咀嚼过程中疼痛不太可能影响下颌运动的运动学参数。定性地，个体受试者数据显示高渗盐水对运动参数的影响存在很大差异，这表明疼痛对颌骨运动的影响在个体之间可能不一致。结论：数据表明疼痛对下颌运动的影响可能随所执行的任务而变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号