Tongue pressure production during swallowing in patients with mandibular prognathism

Abstract

The tongue pressure waveform differed between the control and patient groups. The incidence of a double-peak tongue pressure waveform was more frequent in the patient group. In both groups, the exertion of tongue pressure began at the anterior point of the sensor sheet, followed by the peripheral parts. Although the order of expression of tongue pressure was the same for the two groups, maximum tongue pressure at all parts of the sensor sheet was lower in the patient group than in the control group. Furthermore, swallowing time was longer in the patient group than in the control group at the peripheral parts of the palate. These results clearly show the difference in tongue pressure production during swallowing between patients with mandibular prognathism and volunteers with normal occlusion. The current findings suggest that maxillofacial morphology may affect tongue movement during swallowing.

The effect of tongue thrusting on tongue pressure production during swallowing in adult anterior open bite cases

“…The maximum magnitude of tongue pressure at the midline was the highest in the anterior‐median part (Ch1). These findings were similar to those in the healthy group of the present study and of previous reports . Thus, even patients with anterior open bite have some patterns that are considered appropriate for food bolus transfer, regardless of the presence or absence of tongue thrusting during swallowing.…”

“…In the healthy group, the observations in the present study suggest a tongue‐palate contact pattern throughout the oral preparatory and oral transit stages, which is similar to previous reports . The maximum magnitude of tongue pressure at the anterior‐median part (Ch1) was the highest of all measuring points and lasted until completion of swallowing.…”

“…The maximum magnitude of tongue pressure at the anterior‐median part (Ch1) was the highest of all measuring points and lasted until completion of swallowing. Thus, the strong contact between the tip of the tongue and anterior‐median part (Ch1) appeared to serve as the anchor for the swallowing action …”

“…The control group comprised eight volunteers with individual normal occlusion (3 men, 5 women; mean age: 24.3 ± 3.0 years; healthy group) who showed no clinically abnormal morphology or functional abnormalities in the oral and maxillofacial region. Inclusion criteria were set in accordance with the report by Sakaue et al…”

“…[19][20][21] Recently, sensor sheets have also been used to examine the relationships between tongue function and malocclusion and have shown tongue-palate contact patterns specific to patients with mandibular prognathism. 22 In the present study, the sensor sheet was also used to examine the effect of tongue thrusting on tongue pressure production during swallowing in adult patients with anterior open bite, based on the idea that tongue dynamics during swallowing in anterior open bite can be quantitatively evaluated.…”