MEASURING DEVICE FOR MOUTH OPENING WIDTH IN TEMPOROMANDIBULAR JOINT DYSFUNCTIONS Russian patent published in 2009 - IPC A61C19/04 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to dentistry and roentgenology, and can be used for measurement of maximum mouth opening width and mandible fixation in prescribed position in diagnostics and treatment of temporomandibular joint dysfunctions (TMJ). A measuring device for mouth opening width in temporomandibular joint dysfunctions is made of bioinert plastic and shaped as equilateral triangle of 7 cm and more with ovaled angles. Along two opposite sides there are waves formed of pitch 0.2 cm and height 0.2 cm The distances of bases of the symmetric opposite waves are torque. Device does not induce pain and discomfort in the patient, differs with simplicity and low prices in manufacturing, is applicable for all age groups, allows measuring the distance of cutting edges of mandible and maxilla incisors, standardising researches at all stages in clinical physicians and radiologists before, during and after treatment, simplicity in application.

EFFECT: possibility for reliable mandible fixation in position of maximally open mouth, and simultaneous measurement of degree of maximally open mouth in various TMJ dysfunctions.

1 dwg