目的:观察长正中型全口义齿对老年无牙颌患者口腔健康相关生活质量(Oral Health Related Quality of Life,OHRQoL)的影响,以期为临床全口义齿修复的型选择提供依据。方法:采用随机数字表法随机选取拟行全口义齿修复并伴有牙槽嵴严...目的:观察长正中型全口义齿对老年无牙颌患者口腔健康相关生活质量(Oral Health Related Quality of Life,OHRQoL)的影响,以期为临床全口义齿修复的型选择提供依据。方法:采用随机数字表法随机选取拟行全口义齿修复并伴有牙槽嵴严重吸收的老年无牙颌患者20名,其中男11名,女9名,年龄为(71.1±2.9)岁,通过随机交叉对照实验,在依次戴用长正中型与传统解剖型全口义齿8周后,采用无牙颌口腔健康影响程度量表(Oral Health Impact Profile 20-EDENT,OHIP-EDENT)对全部患者进行问卷调查,评价修复后患者满意度。选用Wilcox on秩和检验来分析比较戴用两种不同型全口义齿后的各量表指标差异。结果:在OHIP-EDENT量表20项指标之中,"义齿适合性不佳"(Z=-2.449,P=0.014<0.05)、"粘膜破溃"(Z=-3.000,P=0.003<0.05)以及"中断进食"(Z=-2.236,P=0.025<0.05)等三方面,长正中型全口义齿显著优于解剖型全口义齿,差异有统计学意义。结论:作为改良型,长正中型有利于减少义齿基托下粘膜疼痛的发生,有助于患者咀嚼效能的发挥,进而降低了佩戴全口义齿对患者进食的影响,更易为牙槽嵴低平的无牙颌患者所适应,明显改善了老年无牙颌患者的口腔健康相关生活质量,获得较高的患者满意度。展开更多
The article introduces a new method for three-dimensional reproduction of edentulous dental casts,and wax occlusion rims with jaw relation by using a commercial high-speed line laser scanner and reverse engineering so...The article introduces a new method for three-dimensional reproduction of edentulous dental casts,and wax occlusion rims with jaw relation by using a commercial high-speed line laser scanner and reverse engineering software and evaluates the method’s accuracy in vitro.The method comprises three main steps：（i）acquisition of the three-dimensional stereolithography data of maxillary and mandibular edentulous dental casts and wax occlusion rims;（ii）acquisition of the three-dimensional stereolithography data of jaw relations;and（iii）registration of these data with the reverse engineering software and completing reconstruction.To evaluate the accuracy of this method,dental casts and wax occlusion rims of 10 edentulous patients were used.The lengths of eight lines between common anatomic landmarks were measured directly on the casts and occlusion rims by using a vernier caliper and on the three-dimensional computerized images by using the software measurement tool.The direct data were considered as the true values.The paired-samples t-test was used for statistical analysis.The mean differences between the direct and the computerized measurements were mostly less than 0.04 mm and were not significant（P.0.05）.Statistical significance among 10 patients was assessed using one-way analysis of variance（P,0.05）.The result showed that the 10 patients were considered statistically no significant.Therefore,accurate three-dimensional reproduction of the edentulous dental casts,wax occlusion rims,and jaw relations was achieved.The proposed method enables the visualization of occlusion from different views and would help to meet the demand for the computer-aided design of removable complete dentures.展开更多
文摘目的:观察长正中型全口义齿对老年无牙颌患者口腔健康相关生活质量(Oral Health Related Quality of Life,OHRQoL)的影响,以期为临床全口义齿修复的型选择提供依据。方法:采用随机数字表法随机选取拟行全口义齿修复并伴有牙槽嵴严重吸收的老年无牙颌患者20名,其中男11名,女9名,年龄为(71.1±2.9)岁,通过随机交叉对照实验,在依次戴用长正中型与传统解剖型全口义齿8周后,采用无牙颌口腔健康影响程度量表(Oral Health Impact Profile 20-EDENT,OHIP-EDENT)对全部患者进行问卷调查,评价修复后患者满意度。选用Wilcox on秩和检验来分析比较戴用两种不同型全口义齿后的各量表指标差异。结果:在OHIP-EDENT量表20项指标之中,"义齿适合性不佳"(Z=-2.449,P=0.014<0.05)、"粘膜破溃"(Z=-3.000,P=0.003<0.05)以及"中断进食"(Z=-2.236,P=0.025<0.05)等三方面,长正中型全口义齿显著优于解剖型全口义齿,差异有统计学意义。结论:作为改良型,长正中型有利于减少义齿基托下粘膜疼痛的发生,有助于患者咀嚼效能的发挥,进而降低了佩戴全口义齿对患者进食的影响,更易为牙槽嵴低平的无牙颌患者所适应,明显改善了老年无牙颌患者的口腔健康相关生活质量,获得较高的患者满意度。
基金the Twelfth Five-Year National Key Technologies Research and Development Program of China(grant no.2012BAI07B00)the National High Technology Research and Development Program(‘863’Program)of China(grant nos.2013AA040801 and 2013AA040802)+1 种基金the National Natural Science Foundation of China(grant no.81271181)the Scientific Research Innovation Foundation for Youth Doctors of Peking University School of Stomatology(2011)
文摘The article introduces a new method for three-dimensional reproduction of edentulous dental casts,and wax occlusion rims with jaw relation by using a commercial high-speed line laser scanner and reverse engineering software and evaluates the method’s accuracy in vitro.The method comprises three main steps：（i）acquisition of the three-dimensional stereolithography data of maxillary and mandibular edentulous dental casts and wax occlusion rims;（ii）acquisition of the three-dimensional stereolithography data of jaw relations;and（iii）registration of these data with the reverse engineering software and completing reconstruction.To evaluate the accuracy of this method,dental casts and wax occlusion rims of 10 edentulous patients were used.The lengths of eight lines between common anatomic landmarks were measured directly on the casts and occlusion rims by using a vernier caliper and on the three-dimensional computerized images by using the software measurement tool.The direct data were considered as the true values.The paired-samples t-test was used for statistical analysis.The mean differences between the direct and the computerized measurements were mostly less than 0.04 mm and were not significant（P.0.05）.Statistical significance among 10 patients was assessed using one-way analysis of variance（P,0.05）.The result showed that the 10 patients were considered statistically no significant.Therefore,accurate three-dimensional reproduction of the edentulous dental casts,wax occlusion rims,and jaw relations was achieved.The proposed method enables the visualization of occlusion from different views and would help to meet the demand for the computer-aided design of removable complete dentures.
