INTRAORAL MEASURING DEVICE FOR MEASURING OF SLOPE ANGLE OF TEETH WALLS DURING PREPARATION Russian patent published in 1998 - IPC

FIELD: prosthetic dentistry. SUBSTANCE: device has tooth conicity measuring facility and its control facility. Measuring facility includes housing 1 with cover 2, three axles 3, bushing 4 made of antifriction material, and metal bushing 5 which form plain bearing mounted on central (middle) axle 3. Measuring facility also includes two side 6 and middle 7 shaped supporting plates, nuts 8 and handle 9. Control facility consists of scales 11 and magnifying glasses 12 positioned above every scale 11. Scales 11 are made over circumference arc with symmetric graduation relative to zero mark. Scales 11 are mounted on frontal surfaces of housing 1 in contact with pointers 10 of middle shaped supporting plate. Scales 11 and magnifying glasses are installed on both frontal surfaces of housing for convenience in use when measuring the teeth of right- and left-hand sides of upper and lower jaws. EFFECT: unobstructed and accurate fitting prosthesis on supporting teeth. 3 dwg