Search for dissertations about: "white teeth"

Found 4 swedish dissertations containing the words white teeth.

  2. 1. 100 million years of shark macroevolution : A morphometric dive into tooth shape diversity

    Author : Mohamad Bazzi; Per Ahlberg; Matt Friedman; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sharks; Macroevolution; Extinction recovery dynamics; Geometric Morphometrics; Morphospace-Disparity Framework; Teeth; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi;

    Abstract : Few vertebrate clades exhibit the evolutionary longevity and versatility of sharks, which constitute nearly half of all current chondrichthyan biodiversity and represent an ecological diversity of mid-to-apex trophic-level predators in both marine and freshwater environments. The rich fossil record of shark teeth from Mesozoic and Cenozoic rocks also makes the group amenable to large-scale quantitative analyses. READ MORE

  4. 2. On Fluoridation of Chewing Sticks (Miswaks) with Respect to Dental Caries

    Author : Hosam A Baeshen; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Approximal area; caries lesions; chewing stick Miswak ; fluoride; fluoride retention; fluoride solution; fluoride toothpaste; impregnation; orthodontic patients; saliva; Salvadora Persica;

    Abstract : The chewing stick known as a “Miswak” is a natural toothbrush that is widely used for cleaning the teeth. It has been used for thousands of years in Asia, Africa and the Middle East. The aim of this thesis was to evaluate the Miswak as a vehicle for fluoride delivery in the oral cavity. READ MORE

  5. 3. On tissue reactions to dentin as a bone substitute material

    Author : Payam Farzad; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Grafted dentin; tissue reaction; bone blocks; dental implants; experimental study;

    Abstract : Background Reconstruction of the jaws due to resorption of the alveolar crest may require bone augmentation prior to installation of endosseous implants. Active research on new bone graft materials with bone regeneration ability equivalent to autogenous bone but without the limitations of allogenic, xenogenic and synthetic bone are constantly ongoing. READ MORE

  6. 4. Clinical application of QLF and DIAGNOdent : two new methods for quantification of dental caries

    Author : Sofia Tranæus; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : General aim: The general objective of this thesis was to evaluate the clinical performance of two new methods for quantification of dental caries - the Quantitative Light-induced Fluorescence method (QLF) and KaVo DIAGNOdent. Materials and methods: In Paper I, in vivo measurements with QLF on teeth scheduled for extraction, were compared with transverse microradiography (TMR), and tested for intra-operator reliability. READ MORE