Page 18 - Olfaction regained_Flipbook-subtitles

larynx-bypass is a very useful device for research purposes. The latter is described in more detail in following chapters. Figure 7. Schematic drawing of a laryngectomized patient using a larynx-bypass More methods generating a nasal airflow are described. Examples of this are the glossopharyngeal press (Damsté, 1979), buccopharyngeal sniffing (Moore-Gillon, 1985), and the buccopharyngeal manoeuvre (Swartz et al., 1987). Most of these methods propose the generation of retronasal airflow by creating pressure changes in the pharynx. These methods have not been described in detail and their effectiveness has not been 17