Effects of varying fixed lingual apex positions on tongue pressure during straw drinking

Abstract

We investigated the impact of tongue-thrusting on lingual pressure during fluid intake with a straw. In this study, 12 healthy young dentate individuals (two women and 10 men; 19-33 years) were instructed to drink 15 mL of water with a regular drinking straw at 37 °C, when indicated by the investigator. Participants drank after adjusting tongue position to one of the following patterns: (i) Holding the tip of the straw between the lips (Normal Position: NP), (ii) Sticking out the tongue to the vermilion zone of the lower lip and inserting the straw 1 cm past the front teeth (Tongue-thrusting Position: TP). Five recordings were conducted for each participant in a randomised order. To measure tongue pressure during swallowing, a specially designed 0.1-mm thick sensor sheet (Nitta, Osaka, Japan) with a tactile system for measurement of pressure distribution (I-SCAN; Nitta) was used. Duration, maximal magnitude and integrated value of tongue pressure were analysed based on the wave of tongue pressure recorded while water was swallowed. Magnitude, duration and integrated value of tongue pressure were significantly lower in TP than in NP at the median line (Ch1-3). Magnitude and integrated value of tongue pressure at the lateral part of the tongue (Ch5) were significantly lower in TP than in NP. When duration, maximal magnitude and integrated values were compared by channel, no significant differences were observed in NP, but a significant difference was found between Ch3 and the lateral areas Ch4/Ch 5 in TP. When the tongue was thrust forward, movement dynamics of the entire tongue changed and influenced contact between the tongue and palate during liquid intake with a straw. The impact was noticeably weaker on the median line than in lateral areas.

Quantitative Measurement of Swallowing Performance Using Iowa Oral Performance Instrument: A Systematic Review and Meta-Analysis

“…An initial screening of the titles and abstracts identified 47 studies. After reading the full texts, 33 studies [ 44 , 45 , 46 , 47 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 ] were included, thus eliminating 14 studies [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 78 ] that did not meet the inclusion/exclusion criteria. The summary of the search strategy is depicted in Figure 2 .…”

“…All of the studies reporting any other diagnostic tool and not referring to IOPI measures were excluded [ 28 , 29 , 30 ]. In addition, studies published in journals without an impact factor and not peer-reviewed were eliminated [ 31 , 32 , 33 , 34 , 35 , 36 , 37 ].…”

Effects of water viscosity and tongue ingestion site on tongue pressure during food bolus propulsion

“…To measure tongue pressure during swallowing, a specially designed 0.1‐mm thick sensor sheet (Nitta, Osaka, Japan) with a tactile system for measurement of pressure distribution (I‐SCAN, Nitta, Osaka, Japan) was used (Figure ). Based on previous study with an experimental palate, the sheet was T‐shaped for easy attachment to the hard palate and used five measuring point channels (Ch. ; 1‐3, L, R) to record tongue pressure production at different parts of the palate.…”

Study of postoperative laryngopharyngeal discomfort: protocol for a single-centre cohort study

“…The researcher will explain the study details to the patients. The medical devices used in this study will be licensed 21 and verified for safety prior to the trial.…”