上颌骨缺损赝复体修复前后语音效果分析  

Evaluation of speech in patients with maxillary defect rehabilitated with maxillary obturator prostheses

作　　者：孙静[1] 陈仁吉[2] 任卫红[3] 郑东翔[3] 

机构地区：[1]首都医科大学口腔医学院种植中心,北京100050 [2]首都医科大学口腔医学院颌面外科,北京100050 [3]首都医科大学口腔医学院修复科,北京100050

出　　处：《北京口腔医学》2013年第4期202-205,共4页Beijing Journal of Stomatology

基　　金：首都医学科学发展基金重点项目2009-2083

摘　　要：目的评价赝复体修复上颌骨缺损的语音效果,比较开放式赝复体和封闭式赝复体语音效果的差异。方法对7例单侧上颌骨缺损患者的录音资料进行过高鼻音判听、宽带语图及线性预测技术(linear predictive coding,LPC)谱分析。应用SPSS11.5对评价结果行随机区组方差分析。结果患者戴用开放式或封闭式赝复体时较未戴赝复体时的过高鼻音判听分数降低,[a]、[i]、[u]、[ü]的宽带语图及谱上鼻音共振峰消失或振幅降低,高频区能量衰减减少,[u]F2频率值及[i]能量衰减指数(energy damping index,EDI-i)升高,差异均具有显著的统计学意义(P<0.05)。EDI-i与过高鼻音判听分数呈中等程度的负相关(相关系数r=-0.72)。戴用开放式赝复体时过高鼻音判听分数较戴用封闭式赝复体时降低,EDI-i升高,但差异无统计学意义(P>0.05)。结论赝复体可显著降低上颌骨部分缺损患者的过高鼻音程度。开放式赝复体与封闭式赝复体的效果相近。Objective To evaluate the speech outcomes in patients with maxillary defect rehabilitated with maxillary obturator prostheses. Methods The speech recordings of 7 patients with aquired maxillary defect rehabilitated with maxillary obturator prostheses were evaluated by 5 experienced speech therapists for judgment of hypernasality and analyzed by broadband sonogram and linear predictive coding. Results There was significant difference in perceptual ratings of hypemasality between with prostheses and without prostheses （P 〈 0. 05 ）. The difference was not significant in perceptual ratings of hypernasality between buccal flange obturator and hollow obturator （ P = 0. 94 ）. The EDI-i to perceptual ratings of hypernasality showed a moderate negative correlation. Conclusion Obturator prostheses can reduce hypernasality of the patients with unilateral maxillary defect.

关 键 词：上颌骨缺损 赝复体 语音 声学性质分析 

分 类 号：R783[医药卫生—口腔医学]