Witter D J, Van Elteren P, Käyser A F, Van Rossum G M
Department of Oral Function and Prosthetic Dentistry, University of Nijmegen, The Netherlands.
J Oral Rehabil. 1990 Mar;17(2):137-43. doi: 10.1111/j.1365-2842.1990.tb01402.x.
In this study, the oral comfort was compared between subjects with shortened dental arches (SDA, n = 74), subjects with SDA and free-end removable partial dentures (SDA + RPD, n = 25) and subjects with complete dental arches (CDA, n = 72). Oral comfort was measured by (i) absence of pain or distress; (ii) chewing ability; (iii) appreciation of the appearance of the dentition. Additionally, the history of free-end RPD over a period of nearly 7 years was taken into consideration. On the whole, the results did not reveal any significant differences between the three groups with respect to pain or distress. Only 8% of the subjects with SDA reported impairment of chewing ability, and 11% had aesthetic complaints, due to missing posterior teeth in the upper jaw. Of the subjects with SDA + RPD, 20% had complaints about the RPD. In addition, the repeated necessity for repair or replacement of free-end RPD and the fact that some subjects (20%) stopped wearing the RPD during the observation period, confirm the poor performance of this dental provision. It is concluded that the oral comfort of subjects with SDA in this study is compromised to a small extent but remains on an acceptable level. Free-end RPDs do not appear to help oral comfort in these cases.
在本研究中，对短牙弓受试者（SDA，n = 74）、佩戴游离端可摘局部义齿的短牙弓受试者（SDA + RPD，n = 25）和全牙弓受试者（CDA，n = 72）的口腔舒适度进行了比较。口腔舒适度通过以下方面进行衡量：（i）无疼痛或不适；（ii）咀嚼能力；（iii）对牙列外观的评价。此外，还考虑了近7年游离端可摘局部义齿的使用史。总体而言，结果显示三组在疼痛或不适方面没有显著差异。只有8%的SDA受试者报告咀嚼能力受损，11%的受试者因上颌后牙缺失而有美观方面的抱怨。在SDA + RPD受试者中，20%的人对可摘局部义齿有抱怨。此外，游离端可摘局部义齿反复需要修理或更换，以及一些受试者（20%）在观察期内停止佩戴可摘局部义齿，证实了这种牙修复体的性能不佳。得出的结论是，本研究中SDA受试者的口腔舒适度虽有一定程度的受损，但仍处于可接受水平。在这些情况下，游离端可摘局部义齿似乎无助于提高口腔舒适度。
