- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 111 to 115 of 115 (0.034 seconds)Spelling suggestions: "subject:"apiaries"" "subject:"aicaries""
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Gesundheitsverhalten und Einstellungen zur Oralprophylaxe im Generationenvergleich / Health behavior and attitudes to oral prophylaxis in comparison of generationsBraune, Anja-Marion 26 September 2008 (has links)
No description available.
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| 112 |
Befundung jungsteinzeitlicher Zahn- und Kieferfunde aus dem Megalithgrab II von Erwitte-Schmerlecke (Soest) und deren Einordnung in ein Konzept von Ernährung, Mundhygiene und Krankheiten des Craniomandibulärsystems / Neolithic tooth and jaw findings from the megalithic tomb II of Erwitte-Schmerlecke (Soest) and their integration into a concept of nutrition, oral hygiene and diseases of the craniomandibular systemGottstein, Maximilian 21 July 2020 (has links)
No description available.
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| 113 |
Differentiation of Occlusal Discolorations and Carious Lesions with Hyperspectral Imaging In VitroVosahlo, Robin, Golde, Jonas, Walther, Julia, Koch, Edmund, Hannig, Christian, Tetschke, Florian 19 April 2024 (has links)
Stains and stained incipient lesions can be challenging to differentiate with established clinical tools. New diagnostic techniques are required for improved distinction to enable early noninvasive treatment. This in vitro study evaluates the performance of artificial intelligence (AI)-based classification of hyperspectral imaging data for early occlusal lesion detection and differentiation from stains. Sixty-five extracted permanent human maxillary and mandibular bicuspids and molars (International Caries Detection and Assessment System [ICDAS] II 0–4) were imaged with a hyperspectral camera (Diaspective Vision TIVITA® Tissue, Diaspective Vision, Pepelow, Germany) at a distance of 350 mm, acquiring spatial and spectral information in the wavelength range 505–1000 nm; 650 fissural spectra were used to train classification algorithms (models) for automated distinction between stained but sound enamel and stained lesions. Stratified 10-fold cross-validation was used. The model with the highest classification performance, a fine k-nearest neighbor classification algorithm, was used to classify five additional tooth fissural areas. Polarization microscopy of ground sections served as reference. Compared to stained lesions, stained intact enamel showed higher reflectance in the wavelength range 525–710 nm but lower reflectance in the wavelength range 710–1000 nm. A fine k-nearest neighbor classification algorithm achieved the highest performance with a Matthews correlation coefficient (MCC) of 0.75, a sensitivity of 0.95 and a specificity of 0.80 when distinguishing between intact stained and stained lesion spectra. The superposition of color-coded classification results on further tooth occlusal projections enabled qualitative assessment of the entire fissure’s enamel health. AI-based evaluation of hyperspectral images is highly promising as a complementary method to visual and radiographic examination for early occlusal lesion detection.
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| 114 |
Paläopathologische Untersuchungen an prähistorischen Zähnen und Kieferfragmenten – ein Beitrag zur zahnmedizinisch-epidemiologischen Rekonstruktion einer neolithischen Population aus Erwitte-Schmerlecke (Soest, Galeriegrab I) / Palaeopathological investigations of prehistoric teeth and jaw fragments - a contribution to the dental-epidemiological reconstruction of a neolithic population from Erwitte-Schmerlecke (Soest, gallery grave I)Gernhardt, Johannes 19 September 2019 (has links)
No description available.
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| 115 |
Ätiologie und Epidemiologie pathologischer Veränderungen an den Skeletfunden der neolithischen Populationen aus Calden, Rheine und Großenrode / Etiology and epidemiology of pathological changes on the skeletal remains of the Neolithic populations from Calden, Rheine and GroßenrodeCyris, Jan Christian 17 August 2020 (has links)
No description available.
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