A study of the relationship of maximal perioral muscle pressure and tonic resting pressure using a pneumohydraulic capillary infusion system
The tonic(resting) and peak (maximum) lip pressures of 100 subjects were measured. The purpose was to evaluate the validity of the assumption that high peak pressures are indicative of high tonic pressures and vice versa. This paper describes the equipment and techniques devised to test these pressures. The results showed no statistically significant relationship whatsoever between tonic and peak lip pressures. We, therefore, suggest that maximum lip pressures not be used as a diagnostic aid in orthodontics.Abstract
Contributor Notes
E.C. Lubit is a Clinical Professor of Orthodontics at New York University College of Dentistry
M.A. Wallach is a former Associate Professor of Pediatric Dentistry at New York University College of Dentistry
R. Schwalb is a postgraduate orthodontic student at New York University College of Dentistry