固定正畸患者首次治疗后24h正畸疼痛评分与咬合功能相关性分析

Analysis on correlation between orthodontic pain score and occlusal function at 24 h after first time treatment in patients with fixed-orthodontics

目的探讨固定正畸患者首次治疗后24h正畸疼痛评分与咬合功能相关性。方法选取自愿受试者78例,统一采用MBT直丝弓矫治技术矫治,分别计测粘戴固定矫治器前(T0)与粘戴24h后(T1)静息牙痛视觉模拟评分(SO-VAS)和用力紧咬时的咬合牙痛视觉模拟评分(BO-VAS)、咀嚼效能(ME)、咀嚼次数(MT)、最大咬合力(MF)及咬合速率(SO),观察矫治前后上述指标变化并探讨指标间相关性。结果 (1)固定正畸24h后患者BO-VAS和SO-VAS均上升,且BO-VAS[(59.49±19.06)mm]明显高于SO-VAS[(23.21±20.80)mm]。固定矫治24h后,患者出现咬合功能障碍,表现为ME、MT、MF及SO与T0比较均降低(P<0.05)。(2)BO-VAS与ME、MT、MF均呈负相关关系(P<0.05)。SO-VAS与咬合功能障碍之间未表现相关关系。结论固定正畸后首日,咬合功能障碍分级与疼痛分级之间无明显量级对应关系,VAS分级尚不能完全代表咬合功能障碍等级,但用BO-VAS反映患者咬合功能障碍程度的可信度高于SO-VAS。

Objective To investigate the correlation between the orthodontic pain score and occlusal function at 24 h after the first time treatment in＇the patients with fixed orthodontics. Methods Seventy-eight voluntary subjects were selected and treated with MBT straight wire correcting appliance. The VAS scores of spontaneous odontalgia and biting odontalgia （SO-VAS and BO- VAS） ,masticatory efficiency （ME）, masticatory times （MT）,maximal oeclusal force（MF）and occlusion rate before wearing the fixed appliance（T0） ,at 24 h after wearing（T1 ） were measured. The changes of above indicators were observed and the correlation a- mong indicators was investigated. Results （1） BO-VAS and SO-VAS were increased after 24 h of orthodontic treatment,while BO- VAS was （59.49 ±19.06） mm, which was significantly higher than SO-VAS[ （23.21 ± 20.80） mini. After 24 h of fixed orthodontic treatment,the patients had occlusa1 dysfunction,which manifested by ME, MT, MF and SO decrease compared with To （P〈0.05）. （2） BO-VAS was negatively correlated with ME, MT and MF （P〈0.05）. There was no correlation between SO-VAS and oeclusal dysfunction. Conclusion＇ There is no obvious magnitude correspondence relation between the occlusal dysfunction grade and the pain grade on the first day after fixed orthodontic treatment, the VAS grading is not yet fully representative of the occlusal dysfunc- tion level, but the credibility of BO-VAS score is higher than that of SO-VAS score in assessing the degree of occlusal dysfunction.