Müller F, Link I, Fuhr K, Utz K H
Department of Prosthetic Dentistry, University of Mainz, Germany.
J Oral Rehabil. 1995 Oct;22(10):759-67. doi: 10.1111/j.1365-2842.1995.tb00220.x.
High oral perception is thought to contribute to poor adaptation to new dentures. The aim of this study was to evaluate the oral stereognosis and tactile sensibility in edentate subjects and relate these to patient age and capability of adaptation to new prostheses. A total of 67 patients were provided with new complete dentures 2-3 weeks before the experiment. In 54 subjects, the oral stereognosis was evaluated by 12 different test-pieces, which were placed unseen on the tongue and had to be recognized. In 38 patients, the oral tactile sensibility was determined in the premolar area using copper foils. The capability of adaptation was evaluated by a questionnaire. Denture retention was assessed by clinical examination. The number of correctly identified test-pieces and the average identification time were related to the age, but no relation was found to patients' capability of adaptation. The tactile sensibility was found to be impaired with age and diminished capability of adaptation. Both adaptation and oral tactile sensibility were significantly lower in subjects with poor lower-denture retention. In conclusion, the results cannot support a relationship between high oral stereognosis and adaptation problems. However, good denture retention facilitates the adaptation process.
较高的口腔感知能力被认为会导致对新假牙的适应性较差。本研究的目的是评估无牙颌患者的口腔立体感觉和触觉敏感性，并将这些与患者年龄以及对新假牙的适应能力相关联。在实验前2至3周，共为67名患者提供了新的全口假牙。在54名受试者中，通过12个不同的测试片评估口腔立体感觉，这些测试片被放置在舌头上且受试者看不到，受试者必须识别它们。在38名患者中，使用铜箔在前磨牙区域测定口腔触觉敏感性。通过问卷评估适应能力。通过临床检查评估假牙固位情况。正确识别的测试片数量和平均识别时间与年龄相关，但未发现与患者的适应能力有关。发现触觉敏感性会随着年龄增长而受损，且适应能力下降。下颌假牙固位差的受试者的适应能力和口腔触觉敏感性均显著较低。总之，结果不支持高口腔立体感觉与适应问题之间的关系。然而，良好的假牙固位有助于适应过程。
