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Visar resultat 16 - 20 av 429 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. On the tissue response to hafnium, titanium and thin calcium phosphate coatings

    Författare :Sham Mohammadi; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hafnium; titanium; calcium phosphates; hydroxyapatite; implants; bone; soft tissue; histomorphometry;

    Sammanfattning : Background: Titanium (Ti) is the gold standard material for load-bearing implants. Although high success rates have been reported for Ti implants, failures do occur. Alternative materials/surface modifications might further improve the performances of Ti implants, particularly in situations with non-optimal local tissue conditions. LÄS MER

  3. 17. On the influence of micro-and macroscopic surface modifications on bone integration of titanium implants

    Författare :Patricia Miranda Burgos; Göteborgs universitet; []
    Nyckelord :titanium; dental implants; surface modification; bone tissue; biomechanics; BMP-2;

    Sammanfattning : Background: Osseointegrated titanium implants are routinely used in clinical denstistry as anchorage units for dental prostheses. Although the overall clinical results are good, there are clinical situations when an optimized implant healing is desirable, for instance in order to shorten healing periods and to allow immediate loading. LÄS MER

  4. 18. Titanium Dioxide Photocatalysis in Biomaterials Applications

    Författare :Yanling Cai; Ken Welch; Maria Strømme; Håkan Engqvist; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; titanium dioxide; photocatalysis; bioactivity; antibacterial effect; metabolic activity assay; biofilm; reactive oxygen species; disinfection kinetics; post-UV;

    Sammanfattning : Despite extensive preventative efforts, the problem of controlling infections associated with biomedical materials persists. Bacteria tend to colonize on biocompatible materials and form biofilms; thus, novel biomaterials with antibacterial properties are of great interest. LÄS MER

  5. 19. Porcelain veneering of titanium : clinical and technical aspects

    Författare :Per Haag; Malmö högskola; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Guld- och andra legeringar har i många år använts som material vid framställning av kronor och broar för ersättning av skadade eller förlorade tänder. Emellertid har tvivel uppstått kring lämpligheten av att använda guldlegeringar i tandersättningar, då guld har visat sig kunna ge biverkningar i form av allergiska reaktioner. LÄS MER

  7. 20. Micro-grinding of titanium

    Författare :Mohammadali Kadivar; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dressing; grinding; tool topography.; modelling; Micro machining;

    Sammanfattning : Titanium and its alloys are difficult-to-cut materials, commonly used in several application fields, such as: medicine, aerospace, automotive and turbine manufacturing due to their biocompatibility, corrosion resistance, excellent mechanical and thermal properties, and light weight. However, its machining is associated with several difficulties, such as high tool wear, low surface quality, high cutting forces and high costs. LÄS MER