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Abstract

In modern clinical practice in various areas of dentistry, there is a need to virtualize and determine the diagnostic parameters of the stomatognathic system (SS). The aim of this article is to provide an evaluation of correct SS structures based on a comparison of mappings in pantomography, lateral cephalometry, and volumetric tomography using bone and tooth anthropometric points. The digital measurements performed determine the applicability of the analyzed imaging techniques for clinical diagnostics by indicating discrepancies and errors in the evaluation of geometric parameters. They should verify the location of characteristic points, lines, angles, and planes in relation to spatial objects mapped on the 1:1 scale. The analyses performed confirm the appearance of bone and dental structure asymmetry in healthy patients.
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Authors and Affiliations

Wojciech Ryniewicz
1
Łukasz Bojko
2
Anna M. Ryniewicz
2

  1. Jagiellonian University Medical College, Faculty of Medicine, Dental Institute, Department of Dental Prosthodontics and Orthodontics, 4 Montelupich Street, 31-155 Krakow, Poland
  2. AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, 30 Mickiewicza Ave., 30-059 Krakow
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Abstract

This paper presents a preoperative hip reconstruction method with diagnosed osteoarthritis using Durom Hip Resurfacing System (DHRS). The method is based on selection and application of the resurfacing to the pelvis reconstructed on the basis of computed tomography. Quality and geometrical parameters of distinguished tissues have a fundamental significance for locating and positioning the acetabular and femoral components. The application precedes the measurements of anatomical structures on a complex numerical model. The developed procedure enables functional selection of endo-prosthesis and its positioning in such a way that it secures geometric parameters within the bone bed and the depth , inclination angles and ante-version of the acetabular component, the neck-shaft angle and ante-torsion angle of the neck of the femoral bone, and reconstruction of the biomechanical axis of the limb and the physiological point of rotation in the implanted joint. Proper biomechanics of the bone-joint complex of the lower limb is determined by correlation of anatomical-geometrical parameters of the acetabular component and parameters of the femoral bone.

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Authors and Affiliations

Anna M. Ryniewicz
Łukasz Bojko
Tomasz Madej
Andrzej Ryniewicz

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