Preliminary radiographic observations of the tongue-repositioning manoeuvre

Eur J Orthod. 2006 Dec;28(6):618-23. doi: 10.1093/ejo/cjl051. Epub 2006 Nov 13.


The tongue-repositioning manoeuvre (TRM) is a method to place the tongue in direct contact with the hard palate. The TRM makes use of voluntary generation of negative interocclusal pressure controlled by an intra-extraoral pressure indicator device in combination with an oral shield. The aim of the study was to investigate whether the TRM influences vertical tongue position and/or tongue-velum contact. Ninety consecutive patients (75 males, aged 26-76 years, and 15 females, aged 36-70 years) who presented with snoring and/or obstructive sleep apnoea (OSA) were examined at the University of Göttingen. Two cephalograms, with and without the TRM, were taken and traced. The data were analysed using Wilcoxon matched-pairs signed-rank test. Evaluation of the TRM demonstrated a significant increase (P < 0.01) of the mean tongue-velum contact from 6.3 to 24.5 mm and a significant decrease (P < 0.01) of the mean tongue-palate distance (12.3-3.1 mm) measured perpendicular to the nasal line. This was compatible with an intensification of posterior mouth closure and a contact position of the tongue with the palate.

MeSH terms

  • Adult
  • Aged
  • Cephalometry
  • Deglutition / physiology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Palate, Hard / diagnostic imaging
  • Palate, Soft / diagnostic imaging
  • Radiography
  • Sleep Apnea, Obstructive / therapy*
  • Snoring / therapy
  • Sucking Behavior
  • Tongue / diagnostic imaging
  • Tongue / physiopathology*
  • Vacuum