METHOD OF DETERMINING PROSTHETIC PLANE PROJECTION ON PERSON'S FACE AND DEVICE FOR ITS REALISATION Russian patent published in 2014 - IPC A61C19/05 A61C19/45 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine, namely to dentistry, and is intended for determination of prosthetic plane projection on person's face. For this purpose device for registration of sagittal articular way, containing U-like shaped arc, passing from the area of temporo-mandibular joints to central maxillary incisors, is used. In the area of maxillary incisors arc is provided with paraocclusion fork. On each side of the arc, opposite the area of location of lower jaw joint, placed is one holder of registering device, made with possibility of contact with fixed on patient's face self-adhering millimetre paper. To find prosthetic plane projection on patient's face, Frankfurt horizontal line and line of lower jaw base are applied. Value of the first angle, formed by intersection of said lines, is determined. After that, by means of the claimed device determined is line of sagittal articular way, which together with line, representing prosthetic plane projection on patient's face, constitutes the second angle. Prosthetic plane projection on face is determined by formula: value of the second angle minus 102° equals value of the first angle.

EFFECT: method makes it possible to increase accuracy of prosthetic plane determination in form of its projection on patient's face due to application of dependence of 2 angles, where the first angle is formed by line of Frankfurt horizontal and line of lower jaw base, and the second angle by line of sagittal articular way and line representing prosthetic plane projection.

2 cl, 4 dwg