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目的:测量并分析夜磨牙症患者使用弹性垫治疗前后各项咬合数据变化。方法:使用弹性垫对青年夜磨牙症患者(n=10)进行治疗,并在治疗前和治疗后6个月使用T-Scan咬合检测仪进行咬合检测,观察和记录实验组闭合时间、分离时间、力中心位置、力不对称指数的变化,与对照组(n=10)进行对比和研究,并观察临床疗效。结果:治疗前实验组闭合时间及左、右侧分离时间均比对照组长(P<0.05),治疗后均无统计学差异(P>0.05);治疗前、后2组前伸分离时间差别无统计学意义(P>0.05);治疗前实验组和对照组力中心位置左右向偏移和右侧力百分比及力不对称指数比较均有统计学差异(P<0.05),治疗后比较均无统计学差异(P>0.05)。实验组治疗后闭合时间及左、右侧分离时间均比治疗前缩短(P<0.05);实验组治疗前、后右侧力百分比值有统计学差异(P<0.05),前伸分离时间、力中心位置偏移、左侧力百分比及力不对称指数治疗前后比较均无统计学差异(P>0.05)。结论:早接触、侧方干扰、全牙列力中心的偏移等咬合因素与磨牙症有十分密切的关系。使用弹性垫治疗磨牙症,可以有效地改善上述问题,使关系更加协调和稳定。
OBJECTIVE: To measure and analyze the changes of occlusion data before and after using elastic pads in patients with bruxism. Methods: Young patients with bruxism (n = 10) were treated with elastic pad and occlusal detected before treatment and 6 months after treatment by T-Scan occlusion detector. The occlusion time and separation time of experimental group were observed and recorded , Center position of force and change of force asymmetry index were compared with the control group (n = 10), and the clinical efficacy was observed. Results: Before the treatment, the closing time of the experimental group and the separation time of the left and right sides were longer than those of the control group (P <0.05), and there was no significant difference after the treatment (P> 0.05) There was no significant difference between the two groups (P> 0.05). Before treatment, there was a significant difference in the left and right shift and the percentage of right-sided force and the asymmetry of force index between the experimental group and the control group (P <0.05) No statistical difference (P> 0.05). The closing time of the experimental group and the separation time of the left and right sides of the experimental group were shorter than those before the treatment (P <0.05). The percentage of the right lateral force before and after treatment in the experimental group was significantly different (P <0.05) There was no significant difference in the position of center of force, percentage of left force and asymmetry of index of force before and after treatment (P> 0.05). Conclusion: The occlusion factors such as early contact, lateral interference, offset of all-dentition center are closely related to bruxism. The use of elastic pad to cure bruxism can effectively improve the above problems and make the relationship more harmonious and stable.