Sökning: "enamel"

Visar resultat 16 - 20 av 60 avhandlingar innehållade ordet enamel.

1. 16. On Caries Risk Profile and Prevention in an Adult Saudi Population

   Författare :Helal Sonbul; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adults. Approximal caries. Bitewing. Caries risk. Cariogram. Dental restorations. Enamel caries. Fluoride toothpaste. Saudi Arabia.;

   Sammanfattning : Objectives. The aims of this thesis were to evaluate: 1) the caries profile in an adult Saudi population with several dental restorations using a computer-based program (Cariogram), 2) the prevalence of primary and recurrent caries and of filled tooth surfaces in relation to the Cariogram outcome, expressed as “the chance of avoiding caries”, 3) the quality of dental restorations and the additional value of using bitewing radiographs, 4) the effect of a “modified fluoride toothpaste technique” on the incidence and progression of approximal caries diagnosed on bitewings and 5) the preventive effect of this toothpaste technique on buccal and lingual enamel caries and to determine the role of patient compliance. LÄS MER

3. 17. Influence of a dental ceramic and a calcium aluminate cement on dental biofilm formation and gingival inflammatory response

   Författare :Katarina Konradsson; Jan van Dijken; Rolf Claesson; Lars Gahnberg; Umeå universitet; []
   Nyckelord :cements; ceramics; cytotoxicity; dental biofilm; gingivitis; interleukin-1; oral hygiene; resin composite;

   Sammanfattning : Dental restorative materials interact with their surrounding oral environment. Interaction factors can be release of toxic components and/or effects on biofilm formation and gingiva. In the end of the nineties, a calcium aluminate cement (CAC) was manufactured as a “bioceramic” alternative to resin composite. LÄS MER

4. 18. Studies on the remineralization of white spot lesions : longitudinal assessment with quantitative light-induced fluorescence

   Författare :Susan Al-Khateeb; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The global aim of this work was to develop and test the light induced fluorescence method using either laser light or a regular, i.e. noncoherent light source for quantification of mineral changes in white spot lesions. Validation studies were carried out to establish the correlation between fluorescence loss and mineral loss. LÄS MER

5. 19. Children with orofacial clefts : dental caries and health-related quality of life

   Författare :Anna Lena Sundell; Agneta Marcusson; Christer Ullbro; Svante Twetman; Carina Källestål; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Children; cleft lip and or palate; dental caries; caries risk; hypomineralization; hypoplasia; health-related quality of life; cortisol in saliva; stress.;

   Sammanfattning : Background. The current understanding on caries and enamel developmental defects prevalence and frequency, caries risk, health-related quality life (HRQoL) and stress response in young children with cleft lip and/or palate (CL/P) are sparse. LÄS MER

7. 20. Making sense of adsorption : Attempting to explain the adsorption of histatin 5 with models, metaphors, and machines

   Författare :Kristin Hyltegren; Beräkningskemi; []
   Nyckelord :Intrinsically Disordered Proteins; histatin 5; adsorption; ellipsometry; Monte Carlo simulations; coarse graining; charge regulation;

   Sammanfattning : This thesis summarises two studies in which the main purpose was to find out how and why the amount of the protein histatin 5 that adsorbs to negatively charged surfaces changes with pH and ionic strength. Histatin 5 is an intrinsically disordered saliva protein, and in the oral environment it adsorbs to tooth enamel. LÄS MER