功能性印模技术用于上颌骨缺损修复的临床效果评价

Clinical study of removable prosthesis fabricated for upper jaw defect by altered cast impression technique

目的:研究上颌骨缺损治疗中采用功能性印模技术患者对舒适度的主观评价及佩戴赝复体后咀嚼效果的客观分析。方法:临床筛选30名上颌骨部分缺损的患者,以自身为对照,分别采用个别托盘印模和功能性印模2种不同方法制取印模,取模后随即记录患者的舒适度及焦虑状态,赝复体佩戴后,测试患者的咀嚼效率。利用SPSS 20.0软件对数据进行分析。结果:采用功能性印模制作的赝复体,患者戴用后咀嚼效能明显提高(P<0.05)。功能性印模方法取模过程中患者的舒适度有明显改善,对取模过程的总体印象方面2种方法无统计学差异(P=0.051)。患者术后3个月后采用功能印模方法,更有助于减轻患者的焦虑状况。结论:功能性印模技术作为颌骨缺损患者制作赝复体可以有效地提高患者的咀嚼功能,增加患者的舒适感。

Objective： To evaluate the subjective feeling and the objective chewing effect of the patients with the prosthesis made for upper jaw defect by altered cast impression technique. Methods： A self-control experiment was conducted for 30 patients with the prosthesis made for upper jaw defect by specific tray impression technique and altered cast impression technique respectively. As soon as the impression was finished,the patients were required to finish 2 questionnaires,one was about their self-comfortable sensation and the other one was the STAI（ State-Trait Anxiety Inventory） about their feeling of anxiety. Then the chewing-effect was tested. Data were analysed by SPSS 20. 0 software（ T-test and Rank-sum test）. Results： Most prosthesis made by altered cast impression technique showed increased masticatory function（ P〈0. 05）. The subjective-felling evaluation indicated that the altered cast impression technique was more comfortable but there was no difference between the 2 methods in the whole course of the impression（ P = 0. 051）. STAI score showed that the patients suffered lower anxiety with altered cast impression. Conclusion： The altered cast impression technique can enhance masticatory efficiency and increase the satisfaction of patients for preparation of the posthesis for upper jaw defect.