https://www.selleckchem.com/pr....oducts/4-Methylumbel
Removable complete dentures alter the spectrum of speech sounds by changing the elasto-plastic properties of certain areas of the oral cavity walls, and the geometric characteristics of the vocal resonator. These relationships predetermine largely the aims of conventional studies on the effect of prosthetic dentures on speech function. To investigate the effect removable dentures have on the fundamental frequency of speech during different stages of the adapta-tion period. We analysed 96×2 digital sound recordings ma