Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 38 for “"RK Dentistry"”.
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Surface properties and the bioactivity of glass-ionomer dental cements and related materials
The improvement and modification of the surface hardness of glass-ionomer dental cements was investigated in the studies discussed in this thesis to allow the range of clinical applications of these cements to be extended. Storing the cements in non-aqueous media whilst heating at 60 oC increased …
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The prevalence of caries and tooth wear in cleft children aged between 6 months and 6 years in the West of Scotland.
… British Association for the Study of Community Dentistry (BASCD) criteria (Pitts et al., 1997) by two trained and calibrated examiners (KB and RW). A copy of the data collection criteria is appended (Appendix 1). Subjects were divided into five age groups: 0.5 – 1.49, 1.5 – 2.49, 2.5 – 3.49, 3.5 …
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Are post-treatment orthognathic patients attractive? A three-dimensional study
… comprised of 24 females and 16 males. Landmarks were placed on all the 3D images by the author. Angular and linear measurements were derived for comparison between groups. An error study of landmark localisation was performed which showed no systematic errors and all coefficients of …
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The effectiveness of computer based interactive oral health education
The Western Isles of Scotland have historically high levels of dental disease in the five year old age group amongst the worst in the UK. The “Action Plan for Scotland” has implemented a multidisciplinary approach to deal with this problem. This includes a major role for schools in supporting and …
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To investigate infant feeding in children born with a cleft in the west of Scotland
This study aimed to look at feeding practices amongst infants who are born with a cleft and the feeding difficulties and challenges that the parents of these children experience especially in the first hours and months after birth.
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The effect of Staphylococcus epidermidis on the pH and dissolution of substitute bone graft materials
The objective of this study was to determine the effect of S. epidermidis 11047 on the pH and dissolution of 5 different bone substitute materials. Part 1 – Measured the pH, calcium and phosphate of the culture medium in the presence and absence of the 5 bone substitute materials before and after …
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Analysis of biological pathways, associated with orthodontic force, using multiplex arrays
… and 2) and bone metabolism (RANKL, OPG) biomarkers were measured. Results –IL-1β, IL-8, TNFα, MMP-9 increased in canine tension sites and TIMPs 1 and 2 from T2-T4, canine compression sites showed increases in IL-1β and IL-8 only at T2, MMP-9 at T3 and T4 and RANKL at T4. GCF volume increased …
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Exploring the variability in mechanical property testing of dental resin composites
The invention of dental resin based-composites (RBCs) has provided a broad range of materials for the restoration of load-bearing posterior teeth with excellent clinical results and adequate longevity. Currently, a lack of consensus exists among researchers regarding classification of RBCs as a …
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A randomised controlled trial to assess the pain associated with the debond of orthodontic fixed appliances
Objectives: To determine patients' experiences of pain during treatment with fixed appliances, expectations of pain during debond and whether biting on a soft acrylic wafer during debond decreases the pain experienced. Method: Ethical approval was gained. Subjects were randomly allocated to the …
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The effect of the oxygen inhibition layer on interfacial bond strengths and stain resistance of dental resin composites
… reactions of photoactive resins used in dentistry are inhibited by oxygen. There is a need to better understand the effects oxygen inhibition on critical properties of dental resins and resin composites which may compromise the success of dental resin composite restorations. This …
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Neutrophil extracellular traps in periodontitis
This thesis has investigated the role of neutrophil extracellular traps (NETs) in the pathogenesis of periodontitis. A fluorometric assay was developed for the in vitro quantification of NET release and used to assess relative levels in chronic periodontitis patients, indicating elevated release …
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Measuring success in dental practice using patient feedback - a feasibility study
Patient feedback was elicited from seven volunteer practices using Interactive Voice Response (IVR) methodology. A concise question set was designed to cover aspects of care, which the literature suggested were most important to patients. Three questions which allowed patients to self assess …
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Oral epithelium in the pathogenesis of periodontitis
Pocket/sulcular epithelium is the first line of defence to plaque bacteria and its potential role in periodontitis is investigated. This thesis describes the development of a model system, utilising an immortal epithelial cell line (H400) in order to investigate responses to periodontal pathogen …
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Vibrations of high-speed dental handpieces measured using laser vibrometry
Objective: To measure in vitro vibration displacement amplitudes of high-speed dental handpieces under unloaded and loaded conditions using a non-contact Scanning Laser Vibrometer (SLV). Methods: Five turbines (two KaVo, three W&H) and two speed-increasing handpieces (one KaVo and one W&H) were …
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The role of local and peripheral antioxidants in the pathogenesis of chronic Periodontitis in smokers
… antioxidant status in both groups. The working hypothesis is that an important mechanism underpinning the increased prevalence of periodontitis in smokers involves reduction of antioxidant defences due to smoking and thus increased oxidative stress and tissue damage. The cross-sectional …
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Getting evidence into practice: an investigation of the use and understanding of evidence-based practice by general dental practitioners in the West Midlands
… that understanding of concepts in evidence-based dentistry (EBD) was limited. There appears to be a need to improve accessibility of evidence and to provide this in a format that practitioners find easily digestible. Common barriers to application of EBD included self-confidence in dentists own …
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Influence of plasma proteins on setting characteristics of mineral trioxide aggregate like cement
Mineral trioxide aggregate (MTA) is a modified Portland cement (PC) based dental material containing bismuth oxide (Bi2O3) as a radiopacifier that is presently used as a sealing material in endodontic treatment. The present study investigated the influence of albumin, fibrinogen and γ-globulin, the …
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Analysis of Bolton's tooth size discrepancy for a referred UK population
Objectives The aims of this study are: • To study the incidence of tooth size discrepancy in a UK population • To establish whether there are differences between males and females. • To assess racial differences for tooth size discrepancies in different malocclusion categories. Malocclusion groups …
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The influence of ‘nanocluster’ reinforcement on the mechanical properties of a resin-based composite material
… the field of aesthetic restorative dentistry and provided a clinically viable alternative to amalgam-based restorations. The mechano-physical properties and resultant clinical longevity of these materials was insufficient. To improve these properties the on-going development of …
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The oral health needs of children, adolescents and young adults after cancer therapy for solid tumours
The survival rate of children with solid tumours is increasing. As a consequence the late effects of cancer therapy have become an important issue requiring further research. The oral health of an individual is central to their general health, level of nutrition and quality of life. This study …
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