全口义齿重度磨耗对脑血流动力学影响的研究

摘要

目的 研究全口义齿重度磨耗致咀嚼功能降低对脑血流动力学的影响,为指导临床患者及时更换旧义齿进一步提供理论依据.方法 选取本院2016年1月至2018年1月收治的临床全口义齿重度磨耗致咀嚼功能降低的患者23例,应用经颅彩色多普勒超声诊断仪探测患者使用旧义齿、再修复的义齿,在咀嚼前、咀嚼10 min时大脑中动脉的收缩期峰流速度、舒张期末峰流速度、平均峰流速度.试验采取自身前后对照,应用SPSS16.0软件包对数据进行独立样本t检验和方差分析.结果 咀嚼前脑血流速度增加与对照组相比均较慢,试验组在咀嚼10 min时血流速度均低于对照组显著.结论 戴用重度磨耗的全口义齿在咀嚼运动时脑血流速度较低,需及时更换旧义齿.%Objective To ivestigate the influence of low masticatory function caused by severe attrition on cerebral blood flow in patients with complete denture,and to provide theoretical basis for clinical patients to replace old denture timely.Methods 23 patients with low masticatory function caused by severe attrition of complete denture were selected.The peak systolic velocity,end-diastolic peak flow velocity,and the average peak-flow velocity of the middle cerebral artery of the patients with old and new dentures were detected by transcranial color Doppler ultrasonography before and 10 minutes after chewing.Before-after self-control study was designed.And SPSS 16.0 software package was used to analyze the data with independent samples test and multiple comparisons and analysis of variance.Results The blood flow velocity was significantly lower in the experimental group than in the control group 10 minutes after chewing.Conclusion If the patients wear complete denture of severe attrition,their cerebral blood flow velocity is low,so the old denture should be replaced timely.