Influence of pontic design of anterior fixed dental prosthesis on speech: A clinical case study  

作　　者：Jia Wan He Cai Tong Wang Jun-Yu Chen 

机构地区：[1]Institute of Science and Technology for Brain-inspired Intelligence,Fudan University,Shanghai 200433,China [2]Department of Prosthodontics,State Key Laboratory of Oral Diseases,National Clinical Research Center for Oral Diseases,West China Hospital of Stomatology,Sichuan University,Chengdu 610041,Sichuan Province,China

出　　处：《World Journal of Clinical Cases》2021年第36期11276-11284,共9页世界临床病例杂志

基　　金：the National Natural Science Foundation of China,No.81901060;the China Postdoctoral Science Foundation Funded Project,No.2018M640931;the Science and Technology Key Research and Development Program of Sichuan Province,No.2019YFS0142.

摘　　要：BACKGROUND The pontic design of fixed dental prostheses(FDPs)is strongly associated with the phonetic function,and the phonetic function of anterior FDPs with different pontic designs remains understudied.AIM To investigate the immediate and short-term influence of pontic design of anterior FDPs on Chinese speech in a clinical case using objective acoustic analysis.METHODS Two FDPs with two types of pontic design(saddle pontic and modified ridge lap pontic)were fabricated for one patient with maxillary anterior teeth missing.The acoustic analysis of patient’s articulation was conducted immediately after wearing the FDPs and 1 wk after wearing these FDPs.RESULTS The effect of FDP on Chinese vowels(/a/,/o/,/e/,/i/,/u/,and/ü/)was insignificant,because the recovery of vowel distortion occurred within 1 wk for both FDPs.Three(/f/,/s/,and/sh/)of eight Chinese fricative consonants were found to have obvious distortions,and the/s/sound distortion last for more than 1 wk for the patient wearing FDP with modified ridge lap pontic design.CONCLUSION The influence of anterior FDP on articulation of Chinese vowels is insignificant,while the articulation of Chinese fricative consonants is more susceptible.When fabricating anterior FDPs for patients with speech related professions,saddle pontic design can be an alternative option compared with modified ridge lap pontic design.

关 键 词：Fixed dental prostheses Acoustic analysis Phonetic function Pontic design Clinical case study 

分 类 号：R767.92[医药卫生—耳鼻咽喉科]