• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Prosthetic Dentistry >The influence of maxillary central incisor position in complete dentures on /s/ sound production.
【24h】

The influence of maxillary central incisor position in complete dentures on /s/ sound production.

机译：完整义齿中上颌中切牙位置对/ s /声音产生的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

STATEMENT OF PROBLEM: The insertion of prosthodontic restorations often leads to speech defects, most of which are transient but nevertheless a source of concern to the patient. For the dental practitioner, there are few guidelines on designing a prosthetic restoration with maximum phonetic success. PURPOSE: This study investigated the effect of different maxillary central incisor positions on phonetic patterns. MATERIAL AND METHODS: The inclination angle of central incisor blocks in duplicate complete maxillary dentures was changed in a range of -30 degrees to +30 degrees from the original position (0 degrees). Test words and sentences were acoustically analyzed. Spectral parameters such as first peak, noise band (defined by upper and lower limits of the most intensively blackened frequency area), Fast Fourier Transformation power spectrum, energy spectrum, and time were investigated. Influences of oral stereognosis, hearing, and age as cofactors on /s/ articulation were also taken into account. RESULTS: The change of incisor block angle in both directions usually caused a poorer execution of the /s/ sound. The labial angulation seemed to have a greater effect than the palatal angulation. The most significant changes were those in the noise band and energy spectrum. CONCLUSION: Immediate phonetic adaptation of prosthetic restorations in the maxillary incisor region can be achieved only if the original position of the natural teeth is transferred to the denture. Although these misarticulations are, in most cases, likely to disappear within a few weeks, they may persist and even lead to psychosocial problems. A better understanding of the causes of misarticulation and the limits of adaptation according to certain morphologic parameters of dentures is important.
机译：问题陈述：修复牙齿的插入通常会导致言语缺陷，其中大多数是暂时性的，但仍然引起患者的关注。对于牙科医生来说，在设计假体修复并获得最大语音成功率方面几乎没有指导原则。目的：本研究调查了不同上颌中切牙位置对语音模式的影响。材料与方法：在重复的完整上颌义齿中，中央门牙块的倾斜角度在原始位置（0度）的-30度到+30度范围内变化。对测试单词和句子进行声学分析。研究了频谱参数，例如第一个峰值，噪声带（由最密集的黑化频率区域的上限和下限定义），快速傅立叶变换功率谱，能谱和时间。还考虑了口腔立体诊断，听力和年龄作为辅因子对/ s /关节活动的影响。结果：在两个方向上切牙块角度的变化通常导致/ s /声音的执行效果较差。唇角似乎比the角有更大的作用。最显着的变化是在噪声带和能谱上的变化。结论：仅当天然牙齿的原始位置转移到义齿上时，才能实现上颌切牙区域修复修复体的即时语音适应。尽管在大多数情况下，这些口齿不清很可能会在几周内消失，但它们可能会持续存在甚至导致社会心理问题。重要的是，根据义齿的某些形态学参数，更好地了解咬合不清的原因和适应的局限性很重要。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号