FIELD: medical engineering. SUBSTANCE: device has micrometer with dial connected to metal clamp via cylindrical rod. The clamp has plastic cover plates for fixing the device in oral cavity. Guiding bushing has micrometer mechanism pusher passing through it. The pusher is built-in coaxially to the rod; loading spring is loosely put-on over the rod. The loading bushing movably put-on over the rod in longitudinal slits is engageable by means of its axial hooking members with loading spring rest bushing attached to it at the end. EFFECT: high accuracy of measurements; simplified measurement process. 1 dwg
