Sökning: "bone-to-implant contact"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden bone-to-implant contact.

1. 1. Aspects of oral implant technology and osseointegration

   Författare :Rainde Naiara Rezende de Jesus; Malmö universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; biomaterials; oral implants; surface topography; surface roughness; surface energy; surface wettability; hydrophilicity; macrogeometry; implant body; thread design; surgical protocol; oversized drilling; osseointegration; bone-to-implant contact; bone density; primary implant stability; insertion torque; removal torque; removal energy; connection stiffness; osteoclasts; RAW264.7 cells; gene expression;

   Sammanfattning : Behandling med käkbensförankrade tandimplantat är en vanlig metod för att ersätta förlorade tänder hos helt och partiellt tandlösa patienter. Trots att implantatbehandling uppvisar en långsiktigt hög lyckande- och överlevnadsfrekvens (90–95% efter 10 år) så förekommer implantatförluster och marginal benförlust kring implantaten under det första året efter insättning och/eller belastning, vilket kan försämra det estetiska resultatet. LÄS MER

3. 2. On 606 retrieved oral and cranio-facial implants. An analysis of consecutively received human specimens

   Författare :Pia Bolind; Göteborgs universitet; []
   Nyckelord :retrieved human implants; oral; craniofacial; bone; undecalcified sections; histology; histomorphometry;

   Sammanfattning : Aim:The aim of the present thesis was to histologically and histomorphometrically analyse retrieved human specimens of oral and cranio-facial implants, and to address the clinical relevance of a retrieval bank.Materials and methods:The specimens analysed were submitted to the retrieval bank at the Department of Biomaterials / Handicap Research. LÄS MER

4. 3. Fixation of Spinal Implants : Clinical and Experimental Studies on the Effects of Hydroxyapatite Coating

   Författare :Bengt Sandén; Acke Ohlin; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Hydroxyapatite; pedicle screw; histomorphometry; fixation; radiolucent zones; screw loosening; Kirurgi; Surgery; Kirurgi; Orthopaedics; ortopedi;

   Sammanfattning : Loosening of implants is a frequent complication in orthopaedic surgery. The aim of this thesis was to evaluate hydroxyapatite coating of pedicle screws with mechanical and histological methods and to correlate the results with the radiological findings.Hydroxyapatite (HA) coating of pedicle screws was investigated in experimental studies in sheep. LÄS MER

5. 4. Focal knee resurfacing : a translational study in sheep on the treatment of focal condylar cartilage lesions with metal implants

   Författare :Nicolas Martinez-Carranza; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background: The translational process of introducing a new treatment concept in medicine from innovation to clinical application is a challenging endeavour that often involves animal experiments. Focal cartilage lesion remains a clinical challenge and is considered to portend osteoarthritis (OA). LÄS MER

7. 5. On implant integration in irradiated bone : clinical and experimental studies

   Författare :Jan Nyberg; Börje Svensson; Christer Dahlin; Carina B. Johansson; Bo Sunzel; Örebro universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dental implant; osseointegration; radiation therapy; bone remodeling; histomorphometry; hyperbaric oxygen therapy; gene expression and in vivo; Surgery; Kirurgi;

   Sammanfattning : Radiation has an impact on the processes involved in bone- healing, regeneration and remodeling. The mechanisms that cause impaired bone healing of dental implants are not fully understood. Adjunctive treatments to revers radiation effects are limited. LÄS MER