Witter D J, De Haan A F, Käyser A F, Van Rossum G M
Department of Oral Function and Prosthetic Dentistry, School of Dentistry, Nijmegen, The Netherlands.
J Oral Rehabil. 1994 Jul;21(4):353-66. doi: 10.1111/j.1365-2842.1994.tb01150.x.
In this clinical 6-year follow-up study subjects with shortened dental arches (SDA, n = 55), characterized by the absence of molar support, are compared with subjects with complete dental arches (CDA, n = 52) with respect to items concerning craniomandibular dysfunction and oral comfort. In addition, a small group of subjects with SDA and removable partial dentures in the lower jaw (SDA + RPD, n = 19) is included in this study. Oral comfort is defined using the following criteria: (i) absence of pain and distress, meaning the absence of signs and symptoms of craniomandibular dysfunction: (ii) chewing ability; and (iii) appreciation of the appearance of the dentition in relation to absent posterior teeth. Additionally, complaints about the free-end RPD are described. It is concluded that: (i) a SDA (consisting of 3-5 occlusal units, OU) is not a risk factor for CMD and is able to provide long-term sufficient oral comfort; and (ii) free-end RPD (in the lower jaw) in SDA do not prevent CMD and do not improve oral function in terms of oral comfort.
在这项为期6年的临床随访研究中，将以无磨牙支持为特征的短牙弓受试者（SDA，n = 55）与全牙弓受试者（CDA，n = 52）在颅下颌功能障碍和口腔舒适度方面进行比较。此外，一小群下颌有短牙弓且佩戴可摘局部义齿的受试者（SDA + RPD，n = 19）也纳入了本研究。口腔舒适度根据以下标准定义：（i）无疼痛和不适，即无颅下颌功能障碍的体征和症状；（ii）咀嚼能力；以及（iii）对缺失后牙情况下牙列外观的评价。此外，还描述了对游离端可摘局部义齿的抱怨。得出以下结论：（i）短牙弓（由3 - 5个咬合单位组成，OU）不是颅下颌功能障碍的危险因素，并且能够提供长期足够的口腔舒适度；（ii）短牙弓中的游离端可摘局部义齿（下颌）不能预防颅下颌功能障碍，在口腔舒适度方面也不能改善口腔功能。
