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《Chongqing Medicine》 2017-26
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Analysis on correlation between orthodontic pain score and occlusal function at 24 h after first time treatment in patients with fixed-orthodontics

Ren Yundan;Liu Juan;Jia Ying;Zhang Junmei;Chen Bo;Guizhou Medicial University;Department of Orthodontics,Affiliated Hospital of Guizhou Medicial University;Institute of Acupuncture and Massage,Guiyang College of Traditional Chinese Medicine;  
Objective To investigate the correlation between the orthodontic pain score and occlusal function at 24 hafter 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 BOVAS),masticatory efficiency(ME),masticatory times(MT),maximal occlusal force(MF)and occlusion rate before wearing the fixed appliance(T0),at 24 hafter wearing(T1)were measured.The changes of above indicators were observed and the correlation among indicators was investigated.Results(1)BO-VAS and SO-VAS were increased after 24 hof orthodontic treatment,while BOVAS was(59.49±19.06)mm,which was significantly higher than SO-VAS[(23.21±20.80)mm].After 24 hof fixed orthodontic treatment,the patients had occlusal dysfunction,which manifested by ME,MT,MF and SO decrease compared with T0(P0.05).(2)BO-VAS was negatively correlated with ME,MT and MF(P0.05).There was no correlation between SO-VAS and occlusal 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 dysfunction level,but the credibility of BO-VAS score is higher than that of SO-VAS score in assessing the degree of occlusal dysfunction.
【Fund】: 贵州省科技厅联合基金(黔科合LG字[2012]048号);; 贵州省中医药管理局专项经费(QZYY2010-56)
【CateGory Index】: R783.5
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