摘要:
Objective:To investigate the influence between complete denture with long centric occlusion and anatomic occlusion Oral Health Related Quality of Life (OHRQoL) of elderly edentulous patients.Methods:According to random number table,20 elderly edentulous patients with severe residual alveolar ridge resorption with age of (71.1± 2.9) years old were randomly selected (11 males and 9 females) in the randomized cross-over controlled trial.For each patient,complete dentures with long centric occlusion and anatomic occlusion were fabricated and worn for 8 weeks in a randomized order respectively.All the patients were investigated with OHIP-EDENT (Oral Health Impact Profile,OHIP-EDENT) to evaluate the satisfaction degree of the patients.The Wilcoxon statistical test was used to compare the differences between two different occlusion.Results:Compared with anatomic occlusion,complete dentures with long centric occlusion were significantly superior in terms of "Dentures not fitting" (Z=-2.449,P=0.014<0.05),"Sore spots in mouth" (Z=-3.000,P=0.003<0.05) and "Interrupt meals" (Z=-2.236,P=0.025 <0.05).Conclusion:Long centric occlusion can contribute to decrease the incidence of sore spots and exert good masticatory function,which are conducive to reducing the influence of wearing complete dentures on taking food,being easier for aged edentulous patients with severe residual alveolar ridge resorption to accommodate and improving OHRQoL of patients.%目的:观察长正中(牙合)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 RelatedQuality of Life,OHRQoL)的影响,以期为临床全口义齿修复的(牙合)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(牙合)型与传统解剖(牙合)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Wilcoxon秩和检验来分析比较戴用两种不同(牙合)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(牙合)型全口义齿显著优于解剖(牙合)型全口义齿,差异有统计学意义.结论:作为改良(牙合)型,长正中(牙合)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.