Quiet floating position

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The resting position (also resting position) is a term from dentistry .

Determination of the floating position with a circle according to Zielinsky

In the relaxed state, the rows of teeth do not touch, but have a small distance from one another. This position is called the resting position . Clinically, the rest floating position is often determined by the dentist in that the patient is asked to hum the letter "M". The position of the lower jaw assumed here is then assumed to be the resting position and measured, for example, with a Zielinsky compass . In this way, registration templates (previously: bite templates) can be adjusted in the patient's mouth so that they correspond to the originally measured values. Using the registration templates, the dental technician can then install the jaw models in an articulator , with which chewing movements can be simulated.

For edentulous patients in particular, it is stated that the level of bite to be striven for in full dentures can be deduced from the floating position so determined (for example 2-3 mm lower than the floating position). It is assumed that the resting position in adults is largely constant, which is often not the case. Rather, it is precisely through dentures that the height of the bite and the subsequent floating position can be influenced. If the bite has sunk - for example due to abrasion - an orientation to the resting position may be incorrect. In this case, the original bite height should also be restored as best as possible according to functional and aesthetic criteria; the appropriate evaluation of a lateral x-ray image can be helpful.

Individual evidence

  1. ^ A b Klaus M. Lehmann, Elmar Hellwig, Hans-Jürgen Wenz: Dental Propaedeutics: Introduction to Dentistry; with 34 tables . Deutscher Ärzteverlag, 2009, ISBN 978-3-7691-3370-7 , p. 77 ( google.com ).