使用全弓上颌种植固定义齿的普通话人群的发音畸变。

IF 4.8 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Prosthetic Dentistry Pub Date : 2025-09-01 DOI:10.1016/j.prosdent.2023.10.008

Yun Zhang MBBS , Jie Liu BA , Dedong Yu DDS , Hongwei Ding PhD , Yiqun Wu PhD

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引用次数: 0

摘要

问题陈述:种植体支持的固定义齿(IFPs)越来越多地用于修复无牙颌，但很少有研究利用声学分析来客观评估修复后的语音结果。目的:本临床研究的目的是通过结合主观评价结果和客观声学分析参数，评估无牙个体在提供IFPs前后的语音清晰度。材料和方法:该研究包括34名上颌无牙且使用IFP超过6个月的患者，以及6名有牙的对照组。进行声学分析，并根据录音对平均意见评分(MOS)进行评分。参与者接受了关于感知到的语言变化的采访。使用配对t检验或Wilcoxon符号秩检验评估参数的变化(α= 0.05)。采用独立t检验或Mann-Whitney U检验(α= 0.025)对有牙组与无牙组(带或不带义齿)进行比较。结果:无牙组修复后，12个辅音中有11个(Ph)发生重心变化，[t]、[t]和[j]与对照组(Ph)仍有差异。结论:IFPs可以增强无牙个体的言语能力，但牙槽和牙槽-腭辅音的发音仍然存在畸变。IFP的腭部形状不当或IFP与萎缩性天然骨之间的突然关节可能导致这些扭曲。

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Articulation distortion in Mandarin-speaking individuals with complete arch maxillary implant-supported fixed dental prostheses

Statement of problem

Implant-supported fixed dental prostheses (IFPs) have been increasingly used to restore edentulous jaws, yet few studies have utilized acoustic analysis for objective evaluation of postrestoration speech outcomes.

Purpose

The purpose of this clinical study was to assess speech articulation in edentulous individuals before and after the provision of IFPs by combining the results of subjective evaluations and objective acoustic analysis parameters.

Material and methods

The study included thirty-four individuals who had an edentulous maxilla and had been provided with an IFP for over 6 months, along with 6 dentate controls. Acoustic analysis was conducted, and mean opinion scores (MOS) were rated from recordings. The participants were interviewed about perceived speech changes. Changes in the parameters were evaluated using the paired t test or Wilcoxon signed-rank test (α=.05). A comparison between dentate controls and edentulous individuals (with or without prostheses) was made using an independent t test or Mann-Whitney U test (α=.025).

Results

Following restoration, the center of gravity (CoG) changes occurred in 11 of 12 consonants in edentulous individuals (P<.05). Prosthesis use allowed the CoG of all affricates and fricatives to appear larger and closer to control values. Before restoration, the CoG of 9 of 12 consonants in edentulous individuals differed from controls (P<.01); after restoration, this reduced to 3 out of 12 (P<.01). MOS improved in 10 of 12 consonants (P<.01), nearing a score of 4. Despite restoration, the CoG of alveolo-palatals [tɕ^h], [tɕ], and [ɕ] remained different from controls (P<.01). Most participants were satisfied with the improvement, with few reporting discomfort with alveolars [s] and [ts^h].

Conclusions

IFPs can enhance speech in edentulous individuals, yet articulation distortions of alveolar and alveolo-palatal consonants persist. The improper palatal shape of IFPs or an abrupt joint between the IFP and atrophic natural bone may contribute to these distortions.

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来源期刊

Journal of Prosthetic Dentistry 医学-牙科与口腔外科

CiteScore

7.00

自引率

13.00%

发文量

599

审稿时长

69 days

期刊介绍： The Journal of Prosthetic Dentistry is the leading professional journal devoted exclusively to prosthetic and restorative dentistry. The Journal is the official publication for 24 leading U.S. international prosthodontic organizations. The monthly publication features timely, original peer-reviewed articles on the newest techniques, dental materials, and research findings. The Journal serves prosthodontists and dentists in advanced practice, and features color photos that illustrate many step-by-step procedures. The Journal of Prosthetic Dentistry is included in Index Medicus and CINAHL.