Sökning: "Cortical compression"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden Cortical compression.

  1. 6. On Influence Of Undersized Implant Site On Implant Stability And Osseointegration

    Författare :Michele Stocchero; Malmö universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dental implant; primary stability; surgical protocol; undersized osteotomy;

    Sammanfattning : The use of dental implants for the rehabilitation of edentulous areas is an established treatment, showing high success rates. Primary stability is one of the pre-requisites for osseointegration, and it is ensured by the mechanical interlocking at the bone to implant interface. LÄS MER

  3. 7. Can Bone Void Fillers Carry Load? : Behaviour of Calcium Phosphate Cements Under Different Loading Scenarios

    Författare :Ingrid Ajaxon; Cecilia Persson; Caroline Öhman-Mägi; Uwe Gbureck; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Calcium phosphate; bone cement; brushite; apatite; monetite; porosity; solvent exchange; degradation; compressive strength; diametral tensile strength; flexural strength; elastic modulus; Poisson’s ratio; fatigue; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Sammanfattning : Calcium phosphate cements (CPCs) are used as bone void fillers and as complements to hardware in fracture fixation. The aim of this thesis was to investigate the possibilities and limitations of the CPCs’ mechanical properties, and find out if these ceramic bone cements can carry application-specific loads, alone or as part of a construct. LÄS MER

  4. 8. Defining the clinical usefulness of vertebral fracture assessment

    Författare :Lisa Johansson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vertebral fracture; vertebral fracture assessment; osteoporosis; DXA; HRpQCT; bone microindentation; mild vertebral fracture; physical function; fracture risk; incident fracture; older women;

    Sammanfattning : Objective: Vertebral fractures (VFs) are the most common osteoporotic fracture and among the strongest predictors for future fracture. VFs can be identified by vertebral fracture assessment (VFA) from lateral spine imaging (LSI) by dual-energy X-ray absorptiometry (DXA). LÄS MER

  5. 9. Functional mapping of somatosensory cortices in the human brain

    Författare :Anna S K Bodegård; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Sornatosensory areas; PET; cytoarchitectonic mapping; postcentral gyrus; shape perception; active touch; passive touch;

    Sammanfattning : Tactile perception is a remarkable ability that enables us to recognise objects and handle tools. Cortical processing during tactile and shape perception in humans is not fully understood. LÄS MER

  7. 10. On efficacy of implant thread design for bone stimulation

    Författare :Ramesh Chowdhary; Malmö högskola; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Introduction – The mechanism and efficiency of force transfer by dental implants to surrounding biologic tissues are important determinants in the development of the implant-to-bone/tissue interface and implant longevity. Threads are used to improve the initial stability by maximizing bone contact through an enlarged implant surface area and thereby favor distribution of interfacial stresses. LÄS MER