Sökning: "Zirconia"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet Zirconia.

  1. 1. Brotthållfastheten på långtids-vattenförvarade monolitiska 3-leds-broar i flerskiktad zirkonia med olika konnektordimensioner och placering i disk.

    Kandidat-uppsats, Malmö universitet/Odontologiska fakulteten (OD)

    Författare :Chab Mina; Moradi Mostafa; [2023]
    Nyckelord :Ceramics; Zirconia FDPs; multilayered zirconia; keram; 3-ledbro; Fler skiktad Zirconia;

    Sammanfattning : Aim: The aim is to evaluate the fracture strength and fracture type of long-term water-stored monolithic 3-unit multilayered zirconia fixed dental prostheses (FDPs) depending on connector dimension and placement in disc. Material and method: Thirty-two 3-unit FDPs (212223) of KATANATM Zirconia Yttria Multilayered (YML) were divided into four groups (n=8/group). LÄS MER

  3. 2. Survival of Zirconia Implants: A Systematic Review and Meta-Analysis

    Master-uppsats, Malmö universitet/Odontologiska fakulteten (OD)

    Författare :Parvin Mohseni; Ahmad Soufi; [2023]
    Nyckelord :dental implant; failure; implant; meta-analysis oral implant; systematic review; zirconia implants;

    Sammanfattning : Aim To assess the clinical outcomes of zirconia implants, namely survival rate and the prevalence of fracture, based on a systematic review of the literature. Material and method An electronic search was conducted in three databases (PubMed, Web of Science, Science Direct), last updated in October 2022. LÄS MER

  4. 3. Effect of powder spray drying on catalyst formulation in tablet form

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Kajsa Wahlgren; [2023]
    Nyckelord :Spray dryer; Catalyst; Powder; Flowability; Chemical engineering; Technology and Engineering;

    Sammanfattning : Heterogenous catalysts consist of a large surface area support material applied with the catalytic active phase, and the activity of a catalyst is often correlated to the surface area per volume. Support materials often need to be processed further to be optimal for specific processes. LÄS MER

  5. 4. Böjhållfastheten hos flerskiktade zirkoniamaterial beroende på sintringsprogram

    Kandidat-uppsats, Malmö universitet/Odontologiska fakulteten (OD)

    Författare :Anisa Tusoh; Johanna Bischof Tillström; [2022]
    Nyckelord :Conventional sintering; flexural strength; high-speed sintering; multilayer; zirconia; Böjhållfasthet; flerskiktad zirkonia; konventionell sintring; snabbsintring; zirkonia;

    Sammanfattning : Aim: The aim of the present study was to evaluate how the material KATANA ™ Zirconia YML is affected in strength depending on two different sintering programs. The evaluation of the strength was made by means of a biaxial flexural strength test. LÄS MER

  7. 5. Teoretisk undersökning av bulkstrukturer av YSZ och en tvillinggräns av t-ZrO2 med DFT

    Kandidat-uppsats, Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Författare :Ali Tayebi; Fanny Andersson; [2022]
    Nyckelord :DFT;

    Sammanfattning : The material yttria-reinforced zirconia (YSZ) is widely used in biomedical applications and is the latest material in dentistry for the production of dental implants such as crowns and bridges. The used concentrations of yttria in zirconia are usually between 3-8 mol% Y2O3 dissolved in the ZrO2 structure, which stabilizes ZrO2 in tetragonal structure at RT. LÄS MER