Sökning: "bone quality"

Visar resultat 31 - 35 av 170 avhandlingar innehållade orden bone quality.

1. 31. Bone structure characterisation using neutron scattering techniques

   Författare :Elin Törnquist; Avdelningen för Biomedicinsk teknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomechanics; neutron tomography; x-ray tomography; small-angle neutron scattering SANS ; small-angle x-ray scattering SAXS ; Experimental mechanics; implant integration; tomography; nanoscale; microscale; mechanical properties;

   Sammanfattning : Bones have unique mechanical properties that originate from their main constituents: mineral, in the form of hydroxyapatite (HAp) crystals, and collagen type-I. The stiffness of the HAp mineral combined with the flexibility of collagen, and their intricate hierarchical arrangement from the smallest individual building blocks to the organ level, result in a composite tissue with a remarkable ability to withstand complex loading scenarios. LÄS MER

3. 32. Health-Related Quality of Life in Postmenopausal Women with Osteoporotic Fractures

   Författare :Inger Hallberg; Anna-Christina Ek; Margareta Bachrach-Lindström; Göran Toss; Olle Svensson; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bone Mineral Density; Hip Fracture; Osteoporosis; Spinal Deformity Index; Vertebral fracture; Nursing; Omvårdnad;

   Sammanfattning : Background: The global burden of osteoporosis includes considerable numbers of fractures, morbidity, mortality and expenses, due mainly to vertebral, hip and forearm fractures. Underdiagnosis and undertreatment are common. LÄS MER

4. 33. On guided bone reformation in the maxillary sinus to enable placement and integration of endosseous implants. Clinical and experimental studies

   Författare :Giovanni Cricchio; Stefan Lundgren; Lars Sennerby; Gerry Raghoebar; Umeå universitet; []
   Nyckelord :bone grafting; donor morbidity; iliac crest; dental implants; membrane elevation; maxillary sinus floor elevation;

   Sammanfattning : Dental caries and periodontal disease are the major causes for tooth loss. While dental caries commonly involve the posterior teeth in both jaws, the teeth most commonly lost due to periodontal problems are the first and second molars in the maxilla. As a consequence, the upper posterior jaw is frequently edentulous. LÄS MER

5. 34. 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

7. 35. Health-Related Quality of Life and Growth Hormone Treatment : Long-term follow-up studies of women with Turner Syndrome and women with osteoporosis

   Författare :Emily Krantz; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Health-related Quality of Life; Growth hormone; Turner syndrome; Postmenopausal osteoporosis;

   Sammanfattning : Introduction Growth Hormone (GH) is used to increase height in Turner Syndrome (TS), the most common sex-chromosome aberration in women. GH is also beneficial for bone mass. However, little is known about how GH treatment affects Health-Related Quality of Life (HRQoL). LÄS MER