Witter D J, van Elteren P, Käyser A F, van Rossum M J
Department of Occlusal Reconstruction, University of Nijmegen, The Netherlands.
J Oral Rehabil. 1989 Jan;16(1):27-33. doi: 10.1111/j.1365-2842.1989.tb01314.x.
In this study the effect of free-end removable partial dentures (RPD) on oral function was investigated by comparing subjects with shortened dental arches (SDA, n = 55) and a group of subjects with SDA and RPD (n = 25). In addition, a group of subjects were selected who had worn an RPD in the past (n = 19). All subjects had a remaining natural dentition consisting of an intact front region and three to five occlusal units (OU) in the posterior area. On the whole, subjects with RPD had less natural OU compared with subjects without RPD. However, this is also true for those who had worn an RPD in the past. The oral functions of subjects with SDA did not differ significantly when compared with subjects with SDA and RPD. Significantly more subjects who had an RPD in the past reported a limited mobility of the mandible, an impaired chewing capacity and chewing with the front teeth. They also reported more aesthetic complaints due to missing posterior teeth. It is concluded that within the populations investigated in this study oral function is not evidently improved by the insertion of a free-end RPD.
在本研究中，通过比较短牙弓受试者（SDA，n = 55）和一组佩戴游离端可摘局部义齿（RPD）的短牙弓受试者（n = 25），研究了游离端可摘局部义齿对口腔功能的影响。此外，还选择了一组过去佩戴过RPD的受试者（n = 19）。所有受试者均保留有天然牙列，前部区域完整，后部区域有三到五个咬合单位（OU）。总体而言，佩戴RPD的受试者与未佩戴RPD的受试者相比，天然OU较少。然而，过去佩戴过RPD的受试者也是如此。与佩戴RPD的短牙弓受试者相比，短牙弓受试者的口腔功能无显著差异。过去佩戴过RPD的受试者中，明显更多的人报告下颌运动受限、咀嚼能力受损以及用前牙咀嚼。他们还报告了因后牙缺失而产生的更多美观问题。得出的结论是，在本研究调查的人群中，佩戴游离端RPD并不能明显改善口腔功能。
