A Cineradiographic Study of Deglutitive Tongue Movement in Patients With Anterior Open Bite

Abstract

The purpose of this study was to use cineradiographic images to investigate tongue movement during deglutition in anterior open bite patients with tongue thrust. Each subject had semi-spherical lead markers attached to the tip and dorsal surface of the tongue and was asked to swallow 5 ml of diluted liquid barium. Tongue movement during deglutition was recorded in the mid-sagittal plane with an X-ray VTR system. The deglutition process was divided into 6 stages to analyze the movements of the tip and dorsal surface of the tongue in each stage. In open bite patients, both the tip and dorsum of the tongue were positioned anteriorly and inferiorly at rest and during the buildup of negative intraoral pressure. The dorsum of the tongue tended to move and be positioned anteriorly as the tongue tip protruded and pushed the maxillary and mandibular anterior teeth. The tongue tip traveled a significantly smaller distance from the stage of tongue rest position to that of most retruded tongue tip position and a significantly larger distance from the stage of most retruded tongue tip position to that of tongue tip fixation in open bite patients than in controls.

Combined Treatment of Open Bite – Long-term Evaluation and Relapse Factors

“…Proffit et al [27] assume an unknown post-operative change mechanism in the tongue-rest position. Kawamura et al [21] explained this by the anterior position of the tip and back of the tongue in open bite so that the tongue's tip is pressed against the incisors. In this study, we observed soft-tissue dysfunction as a decisive factor in vertical relapse.…”

“…Proffit et al [27] gehen von einem unbekannten Mechanismus der postoperativen Änderung der Zungenruhelage aus. Dieser wird von Kawamura et al [21] in dem Sinne erklärt, dass bei offenem Biss sowohl die Zungenspitze als auch der Zungenrücken anterior positioniert werden, so dass die Zungenspitze gegen die Inzisiven gedrückt wird. In der vorliegenden Untersuchung konnten die Weichteildysfunktionen als entscheidende Faktoren für ein Rezidiv in der Vertikalen herausgearbeitet werden.…”

Involvement of Sensory Input from Anterior Teeth in Deglutitive Tongue Function

“…From a clinical point of view, tongue performance during swallowing also depends on the maxillomandibular relationship and occlusion, especially in the case of an anterior open bite [40,41]. Periodontal mechanoreceptors of a hypofunctional tooth demonstrated atrophic change in histologic and physiologic aspects [42,43].…”

Potencial mastigatório em crianças com mordida aberta anterior dentoalveolar, esquelética e controle

“…Muitos estudos analisaram sujeitos com mordida aberta esquelética, comparando-os àqueles com padrões braquifaciais ou sujeitos com normoclusão (Cayley et al, 2000;Fayyat, 2000;Fujiki et al, 2000;2004;Lopes, 2000;Pacheco et al, 2000;Kawamura et al, 2003;Yamagushi e Sueishi, 2003;Degan, 2004;Bertoldi et al, 2005), no entanto, poucas vezes sujeitos com mordida aberta dentoalveolar têm sido incluídos (Ciccone de Faria et al, 2010;Piancino et al, 2012).…”

“…Vários estudos têm comparado a musculatura mastigatória de sujeitos com diferentes padrões verticais da face (Cayley et al, 2000;Fayyat, 2000;Fujiki et al, 2000;2004;Lopes, 2000;Pacheco et al, 2000;Kawamura et al, 2003;Yamagushi e Sueishi, 2003;Degan, 2004;Bertoldi et al, 2005). Poucas vezes sujeitos com mordida aberta dentoalveolar têm sido incluídos (Ciccone de Faria et al, 2010).…”