Дисертації з теми "Dentistry"
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1
Kent, Danae Leda. "Dentist gender and the practice of dentistry /." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09SDN/09sdnk371.pdf.
2
Patrick, A. C. "The dentist-patient relationship : re-modelling autonomy for dentistry." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/8302/.
Анотація:
Previous work in the field of the clinician-patient relationship has relied on a generalized understanding of the ethical structure of the clinical relationship. This thesis seeks to rebut that presumption, by claiming that differing clinical relationships raise diverse ethical issues that call for specific ethical solutions. By looking closely at the primary dental care relationship this thesis will propose three specific instances where the dental-patient relationship faces unique challenges. The thesis will also go on to establish the claim that the current reliance on a rational notion of autonomy; one that is firmly attached to the consent process, is unable to theoretically address and adequately support the issues raised in relation to the dentist-patient relationship. This work considers, through philosophical enquiry, a number of theoretical alternatives and examines in detail the extent to which an alternative way of understanding the dentist-patient relationship might be more effective in addressing the matters of ethical concern raised and, as a consequence, be more ethically robust. The thesis concludes that a separation between our understanding of promoting and protecting autonomy enables us to re-visit and develop a more appropriate model of autonomy for the dentist-patient relationship that relies on a moderated, negative libertarian view. This transforms and simplifies obligations to the patient by providing an account that operates as a constraint in the clinical setting with our wish to promote autonomy being understood as the action of restoring health itself.
3
Conocimiento, Dirección de Gestión del. "Operative Dentistry." Allen Press, 2004. http://hdl.handle.net/10757/655369.
4
Davidian, Edward William Jr. "Impact of Dentist Anesthesiologists on the Advancement of Anesthesia in Dentistry." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1311559967.
5
Kulich, Károly R. "Interpersonal skills in the dentist-patient relationship the art of dentistry /." Göteborg, Sweden : Göteborg University, Dept. of Psychology, 2000. http://catalog.hathitrust.org/api/volumes/oclc/45404168.html.
6
Adeoye, Olusola Titilayo. "Knowledge and attitudes of dentists towards evidence-based dentistry in Lagos, Nigeria." Thesis, University of the Western Cape, 2008. http://hdl.handle.net/11394/2801.
Анотація:
Magister Scientiae Dentium - MSc(Dent)This was a cross-sectional study done in Lagos, Nigeria on 114 dentists. The aim of the study was to describe the knowledge and attitudes of dentists towards the concept of evidence-based dentistry (EBD). This study also attempted to create an awareness of this concept in the minds of previously uninformed dentists as well as demonstrate its need in continuous professional education via seminars, updates, lectures and short-term courses in Lagos, Nigeria.
South Africa
7
Monaco, Carlo <1967>. "Zirconia in dentistry." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5956/1/TESI_MONACO_COMPLETA.pdf.
Анотація:
The above factors emphasize the scope of this thesis for further investigations on zirconia, the
improvement of all-ceramic zirconia restorations, and especially the interaction of zirconia
and veneering and its influence on the performance of the whole restoration.
The introduction, chapter 1, gave a literature overview on zirconia ceramics.
In chapter 2, the objective of the study was to evaluate the effect of abrading before and after sintering using alumina-based abrasives on the surface of yttria-tetragonal zirconia polycrystals. Particular attention was paid to the amount of surface stress–assisted phase transformation (tetragonal→monoclinic) and the presence of microcracks.
Chapter 3 is based on the idea that the conventional sintering techniques for zirconia based materials, which are commonly used in dental reconstruction, may not provide a uniform heating, with consequent generation of microstructural flaws in the final component. As a consequence of the sintering system, using microwave heating, may represent a viable alternative. The purpose of the study was to compare the dimensional variations and physical and microstructural characteristics of commercial zirconia (Y-TZP), used as a dental restoration material, sintered in conventional and microwave furnaces.
Chapter 4 described the effect of sandblasting before and after sintering on the surface roughness of zirconia and the microtensile bond strength of a pressable veneering ceramic to zirconia.
8
Monaco, Carlo <1967>. "Zirconia in dentistry." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5956/.
Анотація:
The above factors emphasize the scope of this thesis for further investigations on zirconia, the
improvement of all-ceramic zirconia restorations, and especially the interaction of zirconia
and veneering and its influence on the performance of the whole restoration.
The introduction, chapter 1, gave a literature overview on zirconia ceramics.
In chapter 2, the objective of the study was to evaluate the effect of abrading before and after sintering using alumina-based abrasives on the surface of yttria-tetragonal zirconia polycrystals. Particular attention was paid to the amount of surface stress–assisted phase transformation (tetragonal→monoclinic) and the presence of microcracks.
Chapter 3 is based on the idea that the conventional sintering techniques for zirconia based materials, which are commonly used in dental reconstruction, may not provide a uniform heating, with consequent generation of microstructural flaws in the final component. As a consequence of the sintering system, using microwave heating, may represent a viable alternative. The purpose of the study was to compare the dimensional variations and physical and microstructural characteristics of commercial zirconia (Y-TZP), used as a dental restoration material, sintered in conventional and microwave furnaces.
Chapter 4 described the effect of sandblasting before and after sintering on the surface roughness of zirconia and the microtensile bond strength of a pressable veneering ceramic to zirconia.
9
Gaskin, Elizabeth Bowles. "Knowledge, attitudes, and behaviors of federal service and civilian dentists concerning minimal intervention dentistry." Diss., University of Iowa, 2006. http://ir.uiowa.edu/etd/57.
10
Broughton, Alan M. "Treatment failures in dentistry." Title page, contents and introduction only, 1988. http://web4.library.adelaide.edu.au/theses/09DM/09dmb875.pdf.
11
Khatami, Shiva. "Clinical Reasoning in Dentistry." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/27095.
Анотація:
Background: Clinical reasoning is the core competency of healthcare. It involves cognition and interaction with the environment to understand clinical situations, make diagnostic and therapeutic decisions, and address clinical problems. Defining competency in clinical reasoning is a difficult objective for dental educators because of our limited understanding of this phenomenon which compromises the validity of any curricular model and assessment method that have been used to date.
Objectives: To describe the process and strategies of clinical reasoning used by dental clinicians across different levels of expertise to develop a conceptual framework for curricular design and assessment of competency.
Methods: Using “think-aloud” method, I interviewed 18 dental students about biopsychosocial issues influencing oral health identified in 6 vignettes; and 8 orthodontic residents plus 11 orthodontists about problems of craniofacial growth and malocclusion presented in 2 vignettes. The interview transcripts were analyzed to explore the process and strategies of clinical reasoning used by the participants.
Results: The reasoning process in both groups included: 1) a ritualistic approach to collect information for a treatment plan; 2) forward and backward reasoning to make and test hypotheses from clinical information; 3) pattern recognition and an integrated script of knowledge and experience triggered by related attributes of the script leading to a clinical diagnosis and plan; and 4) decision trees to evaluate treatment options and maximize the probability and utility of outcomes. Seven reasoning strategies (scientific, conditional, collaborative, narrative, ethical, pragmatic and “part-whole”) were used by both groups. However, experienced clinicians were more confident in their appraisal of uncertain situations and dilemmas as they integrated several reasoning strategies in the process; used refined scripts of knowledge and experience in familiar situations; and were able to reflect on the impact on their reasoning of the larger social, cultural and political context.
Conclusions: Clinical reasoning in dentistry is a contextual and interactive phenomenon that requires integration of specific reasoning strategies to address the biopsychosocial factors influencing oral health. Expertise in clinical reasoning develops through continuous framing and solving problems to refine networks of knowledge and experience and develop adaptive strategies to address the contextual determinants of oral health.
12
Yan, Zhuoqun. "Smart materials in dentistry." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430701.
13
Москаленко, І. "Using lasers in dentistry." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/48840.
Анотація:
Dentists began to use lasers in 1989 in different spheres of their work. Today they use lasers in order to treat periodontal disease, tooth decay, lesion removal. Besides, lasers can be used for teeth whitening.
14
Kowalski, Michael. "Radiology in forensic dentistry." Thesis, The University of Sydney, 1988. http://hdl.handle.net/2123/4678.
15
Przezdziecka, Krystyna. "Profile of Australian dentistry." Thesis, The University of Sydney, 1995. http://hdl.handle.net/2123/4687.
16
OTTOBELLI, MARCO. "INNOVATION IN RESTORATIVE DENTISTRY." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/474658.
Анотація:
Oral infectious diseases are probably the most common infectious pathologies affecting humankind. They have a significant impact on both people quality of life and costs for the healthcare system. Thus, their prevention should be high priority for governaments and research institutes.
There are hundres of bacterial species in the oral environment, however, only a few of them are pathogenic. In fact, the disease begins when there is an imbalance in the oral biofilm with a prevalence of pathogenic species.
In order to prevent oral infectious diseases we can eliminate most of the oral biofilm with mechanical and chemical means. However, in this way also many saprophytic species are eradicated. A smart solution could be to induce a selective pressure for “good” oral bacteria thus hampering pathogenic ones. How can we achive this? Modifying our diet is a possible solution, we demonstrated how cariogenic biofilm development was lowered by using levorotatory carbohydrates instead of dextrorotatory ones.
If we already have a carious lesion, it should be removed and the tooth restored with proper materials. However, most of them are methacrylate based and favour biofilm development, moreover, they also seem to select cariogenic species due to the lack of buffering ability. In our study we demonstrated how the use of different materials, the siloranes, could lead to a decrease in the biofilm development, thus theoretically lowering the incidence of secondary
caries.
If a tooth cannot be recovered and should be extracted, dental implants are probably the best solution for their replacement. However, peri-implantitis is a serious issue affecting up to 50% of the implant and can lead to their loss. The prevention of this oral disease is hence very important. In our study we compared different materials and showed that biofilm formation was similar in all of them. In future studies we will investigate if the biofilm on these materials is similar or not and if they are prevalently pathogenic or saprophytic ones.
In conclusion, oral infectious disease are still very common and for decades dentists tried to achieve oral health by eliminating all the biofilm. However, the most innovative strategy is not to eradicate it but to induce selective pressures by using different means thus leading to a beneficial biofilm which does not cause illness but instead promote our health.
17
Adams, Tracey Lynn. "A dentist and a gentleman the significance of gender to the establishment of the dental profession /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq28268.pdf.
18
Mello, Sandra Maria Ferraz. "Cirurgiões-dentistas docentes dos cursos de odontologia do estado da Bahia, 2008-2009: estudo sobre formação e desempenho pedagógico." Programa de Pós- Graduação em Odontologia da UFBA, 2009. http://www.repositorio.ufba.br/ri/handle/ri/10534.
Анотація:
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Made available in DSpace on 2013-05-08T12:03:16Z (GMT). No. of bitstreams: 1 Dissertacao - Sandra Mello.pdf: 1221336 bytes, checksum: 809e2b31507951ccd248ce7158a448f2 (MD5) Previous issue date: 2009
A docência em Odontologia tem se caracterizado, diferentemente de outros campos de ensino, por considerar a experiência prática suficiente para o seu exercício. A partir das Diretrizes Curriculares Nacionais (DCN), perfila-se um novo egresso, generalista, reflexivo e humanista, o que torna necessário repensar as práticas docentes. Assim, o objetivo deste estudo consiste em efetuar uma análise crítica da formação do cirurgião-dentista docente e do seu desempenho pedagógico frente às mudanças que vêm ocorrendo no processo ensino-aprendizagem, em especial nos cursos de Odontologia do estado da Bahia. Como instrumento da pesquisa, foi encaminhado um questionário a 323 cirurgiões-dentistas docentes de cursos de graduação em Odontologia, obtendo-se resposta de 204 deles. A análise dos dados coletados tornou evidente a necessidade de preparo pedagógico, para que os docentes propiciem aos novos cirurgiões-dentistas a formação ética, solidária humanista preconizada pelas DCN para os cursos de Odontologia. Observa-se que a formação docente para a Odontologia ocorre, basicamente, em cursos de especialização, mestrado e doutorado que privilegiam conteúdos técnicos e procedimentos mecânicos peculiares à profissão, em detrimento de uma formação pedagógica que dê suporte à docência. Dessa forma, fica explicita a necessidade de os docentes se apropriarem dos paradigmas inovadores da Educação, de modo a integrar sua formação técnico-científica a uma visão ético-humanista e possibilitar a formação dos futuros cirurgiões-dentistas em consonância com as características e necessidades da realidade brasileira.
Salvador
19
Björkvall, Karin. "Dentistry "in the wild" : A workplace study of dentistry from a Distributed cognition perspective." Thesis, Högskolan i Skövde, Institutionen för kommunikation och information, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-5266.
Анотація:
The research problem addressed in this thesis is the lack of understanding of dentistry in practice, and the limited amount of work from a HCI-perspective in dental informatics. The aim of this thesis is to gain a deeper understanding of the area as a socio-technical domain from a Distributed cognition-perspective using workplace studies. Dentistry is a complex socio-technical domain where humans, technology, tools and artifacts together form a system. The ubiquitous presence of computers has made a mark on the dental profession with e.g. record systems and digital x-ray, and the integration of IT-system in the dental field may inform how dentists make decisions for their patients and how they perform their work. The problem is that not much work has been done in the dental informatics field from a HCI-perspective. This thesis applies workplace studies and Distributed cognition as an approach to HCI to gain an understanding of dentistry in practice and also draw conclusions how Distributed cognition could be applied as a method in HCI. This thesis presents a detailed account of work in dentistry regarding the propagation of information through representational stages and the roles, tasks and artifacts that are present in the complex socio-technical domain of dentistry. The thesis also provide implications for Distributed cognition regarding how it could be developed to fit into today’s complex socio-technical domains both as a method in HCI and as a theoretical framework. Key words: Dental informatics, Human-computer interaction, Distributed cognition, Workplace studies.
20
Abuhammoud, Salahaldeen Mohammad. "Knowledge and practice of implant dentistry among University of Iowa College of Dentistry alumni." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/3235.
Анотація:
Objective: The objective of this study was to measure and assess the implant education received by graduates from the University of Iowa College of Dentistry and Dental Clinics. This study measured the self-reported competency levels of dental practitioners with regards to providing and maintaining dental implants as treatment modalities to their patients. The study assessed dental graduates’ willingness to practice and perform dental implant procedures, including both surgical and prosthetic treatments. Additionally, the study identifies challenges that face practicing dentists treating patients with dental implants and identifies the preferred way practitioners seek future training after completing dental school.
Methods: A 36-item electronic survey was created and distributed to 737 dentists who graduated from the University of Iowa College of Dentistry and Dental Clinics. Dentists’ demographics, practice characteristics, and detailed self-reported competency in implant dentistry were collected. Statistical analysis of the responses consisted of descriptive statistics and bivariate analysis, and nonparametric Wilcoxon rank-sum test and Spearman’s rank correlation test along with a chi-square test were used for detecting the differences, correlations and associations under different conditions.
Results: 154 dentists completed the survey (21% response rate), while only 143 subjects who fulfilled the inclusion criteria were included for the statistical analysis. The survey consisted mostly of males (56.6%). The mean age of respondents was 34.2 years old with a mean practice time of 6.2 years. Of the responding dentists, 21.7% completed a postgraduate training program and 51% of the respondents were in group practice. 66% of the respondents practice in the Midwest region of the US and 71.3% of the respondents took continuing educational courses in implant dentistry and the mean cumulative hours of CE courses in implant dentistry was 33.8 hours. The mean average of implant restorations provided per year was 11.7 and the mean average of implant placements per year was 19.6. There was a significant correlation between cumulative hours of Continuing Education courses and number of implant units on average placed or restored. 64.3% of the dentists are not satisfied with the implant education given at the dental student level. 95.8% of the dentists reported that dental school training is not adequate to surgically place dental implants in their practice. Only 32.4% reported that dental school training was not adequate to restore dental implants in their practice. The preferred way to receive additional training about dental implants is short-term CE courses and workshop courses conducted by implant companies. 23.6% of the dentists reported they are competent at surgically placing dental implants in their practice. 79.1% reported they are competent at restoring dental implants in the dental office. Only 28.4% reported that they feel dental implants are more difficult than other dental treatments.
Conclusions: Graduate dentists from the University of Iowa are not expected to be competent in all components of implant dentistry without further postgraduate training. Respondents stated that their dental school training in surgical placement of implants was inadequate. To build upon their dental school training, the two main preferred education pathways as reported by respondents were short-term continuing education courses and workshops courses conducted by implant companies.
Within the parameters of this study, we can conclude the following:
1.Age, GPA, number of CE hours in dental implant therapy, specialty status, and time since graduation did not influence undergraduate education satisfaction in dental implant therapy.
2.There is a positive correlation between the number of CE course hours and the number of implant units restored or placed by general dentists.
3.Male dentists, those who practice in group practice settings, and those who have graduated six or more years ago reported a greater number of CE course hours in dental implant therapy.
4.Those who graduated with GPAs less than or equal to 3.4, general dentists, and those who enrolled in a high number of CE courses were more confident in restoring dental implants.
5.Those who graduated with a GPA greater than or equal to 3.5, specialist dentists, and those who enrolled in a high number of CE courses were more confident in surgically placing dental implants.
6.Males, general dentists, those who practice in a group practice setting, and those who graduated six years or more ago restored more implants on average per year.
7.Males, specialist dentists, those who practice outside the Midwest US, and those who graduated six years or more ago surgically place more implants on average per year.
21
Glenny, Anne-Marie. "Evidence-based guidelines in dentistry." Thesis, University of Manchester, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527588.
Анотація:
Background: Clinical guidelines have an important role to play in helping to close the gap between research evidence and clinical practice. In order to fulfill this role, guidelines need to be valid, relevant and comprehensive. Despite advances in chemotherapy and radiotherapy, cancer treatment still remains associated with clinically important oral complications that can impact severely on a patient's quality of life. No clear guidelines exist outlining the optimal oral care strategy for children, teenagers and young adults treated for cancer. Aims: (i) To assess the quality of current clinical guidelines for those working within dentistry; (ii) To develop evidence-based guidelines on mouth care for children, teenagers and young adults being treated for cancer; (iii) To compare the quality of published guidelines and their recommendations in light of supporting research evidence. Methods: (i) Dental guidelines, published in English between 1997-2004, were appraised using the Appraisal of Guidelines Research and Evaluation (AGREE) instrument; (ii) A telephone survey of UK cancer centres was undertaken to establish current practice with regard to mouth care for children treated for cancer. National, evidence-based guidelines were developed following, where appropriate, the established methodology of the Scottish Intercollegiate Guidelines Network (SIGN); (iii) A qualitative assessment of previously published guidelines on mouth care for cancer patients was undertaken. Results: (i) The AGREE instrument identified few examples of good quality dental guidelines; (ii) There is diversity in the mouth care provided to children being treated for cancer in the UK, particularly with regard to the use of routine, preventative oral care therapies. The guideline development process required a combination of an evaluation of research evidence and a formal opinion gathering process. A variety of interventions have been used for the management of oral mucositis, candidiasis, xerostomia and herpes simplex virus; few are supported by the research evidence; (iii) Variation exists in the methods used to produce previously published guidelines on mouth care for cancer patients. Recommendations vary irrespective of the supporting evidence-base. Conclusion: Guidelines need to be assessed for quality before being applied in practice. The guideline development process needs to be transparent, with clear links between recommendations and supporting evidence. There is currently variation in the mouth care provided to children, teenagers and young adults being treated for cancer in the UK. National, evidence-based guidelines may help to reduce this variation. Further research is required into the most effective methods of dissemination and implementation, exploring the role of psychological models of behavioural change.
22
Epasinghe, Don Jeevanie. "Applications of proanthocyanidin in dentistry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/197558.
Анотація:
In dentistry, repair and restoration of tooth structure to regain its mechanical properties is the ultimate aim of caries management. Currently, preventive therapies are preferred to operative interference. New preventive approaches are necessary to treat dental caries.
Dentine is composed of an organic matrix, consisting of type 1. Degradation of collagen matrix is the main reason for breakdown of resin-dentine bonds and development of secondary caries over time. Hence, preservation of collagen fibrils is essential for preventive and reparative procedures in minimum intervention dentistry. Proanthocyanidin (PA) is a natural collagen cross-linker, which can be obtained from grape seeds, pine bark or elm tree. It has a high affinity to proline-rich proteins, like collagen. Cross-linking of the collagen fibrils increases their mechanical properties and their resistance to breakdown by proteolytic enzymes.
Thus, in the first part of the study, with the aim of discovering other possible natural dentine collagen cross-linkers, the effect of two smaller molecular size flavonoids, naringin and quercetin, on the mechanical properties of demineralized dentine was compared to PA. Demineralized dentine treated with PA showed the greatest increase in mechanical properties, followed by quercetin and naringin. The protease inhibitory effect of PA was evaluated by examining its actions on soluble and collagen-bound matrix metalloproteinases and cysteine cathepsins. Proanthocyanidin, even at low concentration of 1%, exhibited excellent inhibitory effects on soluble and matrix-bound proteases.
Secondly, PA was incorporated in a dental adhesive to facilitate its application in clinical situations. The effect of PA incorporation on durability of resin-dentine bond was evaluated. Up to 2% of PA could be added to dental adhesive with no adverse effects on immediate resin-dentine bond strength. However, the bond strengths of PA-incorporated adhesives dropped significantly following ageing. This could be attributed to the free radical scavenging effect of PA, which might also have interfered with polymerization of dental adhesive.
The mechanical properties of PA-incorporated adhesive were evaluated and it was shown that up to 1% PA could be incorporated into an adhesive resin. With the addition of higher concentration of PA, the mechanical properties of the adhesive resin were reduced with increased solubility. Proanthocyanidin release from the cured resin showed an initial burst for 48 hours and was stabilized after five days.
Finally, the remineralization potential of PA on artificial root caries was also compared with quercetin and naringin. All three flavonoids showed remineralization potential; however, their effects were inferior to fluoride. Proanthocyanidin formed a precipitate band on the superficial layer of carious lesion, preventing further mineral deposition. Subsequently, PA was incorporated in a CPP-ACFP (casein phosphoproteins amorphous calcium fluorophosphates) containing-paste to increase the mineral uptake in subsurface layer of caries lesion. Simultaneous application of PA and CPP-ACFP was shown to have a favourable outcome on mineral deposition in root caries lesion.published_or_final_version
Dentistry
Doctoral
Doctor of Philosophy
23
Bousdras, Vasileios. "Mechanical loading in implant dentistry." Thesis, Royal Veterinary College (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439452.
24
Conocimiento, Dirección de Gestión del. "Dentistry & Oral Sciences Source." Ebsco, 2004. http://hdl.handle.net/10757/655289.
25
Abdulla, Kamal Chelvakumaran. "Space maintainers in paediatric dentistry." Thesis, Faculty of Dentistry, 1989. http://hdl.handle.net/2123/4277.
26
Zijlstra-Shaw, Sandra. "Assessment of professionalism in dentistry." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/8449/.
Анотація:
Aims: Professionalism is an essential competence for dental professionals and must therefore be assessed in dental education. This research aimed to develop an instrument to assess professionalism within dentistry. Materials and Methods: The work was conducted in three stages: 1. a qualitative in-depth interview study, using framework analysis 2. an assessment strategy was devised and panel tested using focus groups; 3. an assessment tool was evaluated in a test validation study conducted in dental outreach placements. Results: Professionalism was conceptualised as the manner in which one reflects on and reconciles different aspects of professional practice and which demonstrates acceptance of professional responsibility. It is manifest in the manner in which work is carried out. It contains both tacit (self-awareness, awareness of others, trustworthiness, and ability to relate to context) and overt (vocational, altruistic, responsibility and accountability) aspects. Panel testing supported the face and content validity of the system. In a cohort of 81 dental students, staff and student ratings were correlated, all item total correlations exceeded 0.66 and all alphas exceeded 0.95. The intraclass correlations of all domains exceeded 0.96. All hypothesised relationships between domains were significant but domain scores were unrelated to student age or gender. Domain scores correlated with teachers’ global ratings of students’ professionalism. Conclusions: The assessment system is valid and reliable and should be implemented in undergraduate dental education.
27
TOSCO, VINCENZO. "Nanotechnological applications in clinical dentistry." Doctoral thesis, Università Politecnica delle Marche, 2021. http://hdl.handle.net/11566/290680.
Анотація:
Al giorno d'oggi, i progressi delle nanotecnologie hanno rivoluzionato drasticamente tutti i campi dell'odontoiatria, dalle malattie orali alla diagnosi, prevenzione e trattamento. Lo scopo di questa tesi di dottorato è stato quello di indagare e valutare l'applicazione delle nanotecnologie nella pratica clinica, con particolare attenzione all'Odontoiatria Preventiva, Estetica e Restaurativa.
La prevenzione della carie e il trattamento precoce delle lesioni sono sfide prioritarie per il clinico. Il design basato su nanomateriali, che include idrossiapatite sintetica o suoi derivati, è in grado di imitare alcune delle proprietà meccaniche e strutturali dei tessuti calcificati nativi e quindi può promuovere la remineralizzazione della struttura dello smalto e prevenire l'ipersensibilità della dentina. Inoltre, l'impiego di nanotecnologie nell'arricchimento di gel sbiancanti mediante nanoforme di idrossiapatite è ampiamente utilizzato per evitare i disagi e i danni associati ai trattamenti sbiancanti.
Uno dei principali usi delle nanoparticelle nell'Odontoiatria Restaurativa è la loro applicazione come riempitivi nei nanocompositi, fornendo elevata duttilità senza perdita di forza e resistenza ai graffi, con proprietà ottiche, meccaniche e termiche migliorate. Inoltre, i nanocompositi mostrano proprietà estetiche migliorate, come un'elevata ritenzione della brillantezza e un'eccellente lucidabilità e adattabilità. Tra queste caratteristiche migliorate, degne di nota sono quelle mostrate dai nuovi compositi bulk-fill. Infatti, grazie al loro nuovo contenuto di monomero e alle migliorate proprietà di polimerizzazione, i compositi bulk-fill consentono di ottenere rapidamente un adattamento soddisfacente del materiale nella cavità, diminuendo il tempo di seduta necessario, garantendo anche adeguate caratteristiche fisiche della superficie.
Pertanto, l'applicazione delle nanotecnologie supporta e facilita le esigenze del clinico, che richiedono protocolli clinici rapidi, sicuri e ripetibili, per ottenere il miglior risultato in un unico appuntamento.Nowadays, developments in the nanotechnology arena have dramatically revolutionized all fields of dentistry from oral diseases to diagnosis, prevention and treatment. The aim of this PhD thesis was to investigate and evaluate the application of nanotechnologies in clinical practice, with particular attention to Preventive, Aesthetic and Restorative dentistry. Caries prevention and early treatment of lesions are priority challenges for clinicians. Nanomaterial-based design, which includes synthetic hydroxyapatite or its derivatives, is able to mimic some of the mechanical and structural properties of native calcified tissues and can definitely promote the remineralization of the enamel structure and prevent dentin hypersensitivity. Moreover, the employment of nanotechnologies in the enrichment of whitening gels by means of nano-forms of hydroxyapatite are widely used to avoid the discomfort and damages associated with bleaching treatments. One of the principal uses of nanoparticles in restorative dentistry is their application as fillers in nanocomposites, providing high ductility without strength loss, scratch resistance, enhanced optical, mechanical and thermal properties. In addition, dental nanocomposites exhibit increased aesthetic properties, such as high gloss retention and excellent polishability and adaptability. Among these ameliorated characteristics, noteworthy are those showed by the new bulk-fill composites. Indeed, due to their novel monomer content and enhanced curing properties, bulk-fill composites let to rapidly obtain a satisfactory adaptation of the material into the cavity, decreasing the chair-time needed, while also ensuring adequate physical characteristics of the surface. Therefore, the application of nanotechnology supports and facilitates the clinician’s needs, which require rapid, safe and repeatable clinical protocols, to obtain the best result in a single appointment.
28
Gürlük, Metin. "Der deutsch-türkische medizinische Austausch eine Studie über den İstanbuler Zahnheilkundler Lem'i Belger /." Würzburg : [s.n.], 1986. http://catalog.hathitrust.org/api/volumes/oclc/25345111.html.
29
Fernandes, Fernando. "Responsabilidade civil do cirurgião dentista: o pós-tratamento ortodôntico." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/23/23142/tde-26102001-124313/.
Анотація:
O objetivo deste trabalho foi investigar quais os procedimentos clínicos e as dificuldades do ortodontista no pós-tratamento ortodôntico (contenção e pós-contenção), verificando se as condutas adotadas satisfazem possíveis reclames de pacientes que já terminaram o tratamento corretivo, com base nas determinações do Código Civil e do Código de Defesa do Consumidor quanto ao relacionamento profissional/paciente. A literatura ortodôntica é controversa no que diz respeito a técnicas, tempo, estabilidade e dificuldades inerentes ao tratamento. Um questionário foi enviado pelo correio a todos os especialistas inscritos no CRO/PR; 95 deles enviaram respostas. A análise percentual das respostas obtidas demonstrou que 73,6% dos profissionais não têm consciência plena do tempo para reclamos à Justiça em relação ao tratamento odontológico. Não conhecem o Art.177 do CCB (83,1%). Adotam contrato (67%), fazem ressalvas (48%), porém não estão cientes da validade das mesmas (59%). A maioria (60%) considera a Responsabilidade Civil do ortodontista como de resultado. Nos casos de recidiva pós-contenção, 70% propõem retratamento ortodôntico. Perante a insatisfação do paciente com o resultado do tratamento ortodôntico, 55% dos profissionais responderam que procurariam, de qualquer forma, evitar que o mesmo impetrasse ação de ordem cível. O desconhecimento da Lei e a existência de controvérsias no pós-tratamento ortodôntico, podem estar levando o ortodontista a responder civilmente pelas movimentações dentárias e alterações neuromusculares que ocorrerem nessa fase.
30
Leehacharoenkul, Ron R. Bayne Stephen C. Bader James D. McGraw Kathleen A. "Continental distribution of published dentistry citations." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,309.
Анотація:
Thesis (M.A.)--University of North Carolina at Chapel Hill, 2006.Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Master of Arts in the Department of Operative Dentistry." Discipline: Operative Dentistry; Department/School: Dentistry.
31
Gerasym, L. M. "Using general anesthesia in surgical dentistry." Thesis, БДМУ, 2021. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/19119.
32
Conocimiento, Dirección de Gestión del. "Guía de acceso para Operative Dentistry." Allen Press, 2021. http://hdl.handle.net/10757/655369.
33
Rosén, Sara. "Tool unit designed for equine dentistry." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Industridesign, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45232.
Анотація:
Most people have experienced toothache and know how much it effects the health. It hurts to eat, it ́s hard to sleep and sometimes a small gesture as a smile is avoided because it pains to much. Of course animals have the same issue and feel pain but they can’t tell us how they feel, instead we have to look for signs from their behavior. The recommendation to regularly check the horse’s teeth does minimize the risk of pain. The knowledge within the field of equine dentistry is on the rise and educations and regulations is developing to give the best dental care possible. This has created a need of the right tools adopted to this specific field and this is where a company like Accesia has a chance to be at the forefront of this development. Accesia is a company that have developed tools and educations about the animal dental profession since 2009. Until now the focus has been on smaller animals like cats, dogs and rodents but now they are widening their customer field and develops for this new market, equine dentistry. To get a understanding of this new customers some field studies has been performed and needs that are separate from the previous customer needs has been identified. It ́s not only the size that differs from the dentist working with cats and dogs, it ́s also the working environment and the anatomic conditions that looks completely different. For this thesis the main goal has been to identify how a unit for the tools used by equine dentists should be structured and what parts that should be included to endure the transportation and environment where it will be used. To gain this information, several interviews were conducted with the main users and the experts working on Accesia. The gathered information where later analyzed, concretized and explored in a product concept. This report will go through the different stages in the design process that led to a final design concept which were presented with a prototype and posters at a thesis fair organized by Jönköping University.
34
Johnson, Christian Marie. "Quality and Performance Measures in Pediatric Dentistry." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1371821581.
35
Fugill, Martin. "Simulation and student transition in restorative dentistry." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5724/.
Анотація:
Simulation in the shape of the “phantom head” is an essential part of every dental training programme. It is used to provide the student with practice before he/she is allowed to carry out restorative dental procedures on patients. In theory, this practice promotes patient safety. However, the learning process lacks clarity, and we do not understand fully how well learned skills transfer to clinical activity. This study asks whether in fact the pre-clinical course is a reliable guarantor of patient safety. It does so by examining four facets of the simulation process: purpose, learning, fidelity and transition, using a mixture of research methods, including comparison of pre-clinical and clinical assessment grades, focus groups with students, one-to-one interviews with their teachers and a questionnaire. The results of these investigations indicate a complex inter-relationship between purpose, learning, fidelity and transition. They also suggest that success in simulated restorative dentistry is a poor predictor of clinical ability, a limitation that needs careful consideration in the light of patient safety. The study recommends changes to increase the complexity and authenticity of the pre-clinical course, and suggests that the student transition needs detailed management, perhaps through a blend of pre-clinical and clinical activity.
36
Lea, Simon Christian. "The assessment of ultrasonic instruments in dentistry." Thesis, University of Birmingham, 2004. http://etheses.bham.ac.uk//id/eprint/215/.
Анотація:
Introduction: Ultrasonic scalers are an accepted alternative to hand instruments for the removal of plaque, calculus and stains from teeth. Although the use of these instruments is widespread, the vibrational motion of scalers is not fully understood. Their high frequency, low displacement amplitude oscillations have previously been difficult to analyse. Laser vibrometry is a non-invasive technique for measuring the vibration characteristics of oscillating objects. Aim: The aim of this research thesis was to utilise scanning laser vibrometry to assess a range of dental ultrasonic systems under various operating conditions similar to those employed clinically. … Conclusions: The use of scanning laser vibrometry revealed differences in the operation characteristics of different ultrasonic scalers. Clinicians and researchers should be aware of the variability in the performance of ultrasonic scalers since this may affect both clinical procedures and future research. Further research into the design and operation of ultrasonic scaler tips is needed.
37
Al, Saud Lulwah Bint Mohammed Bin Saad A. "Haptic-enhanced learning in preclinical operative dentistry." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17111/.
Анотація:
Background: Virtual reality haptic simulators represent a new paradigm in dental education that may potentially impact the rate and efficiency of basic skill acquisition, as well as pedagogically influence the various aspects of students’ preclinical experience. However, the evidence to support their efficiency and inform their implementation is still limited. Objectives: This thesis set out to empirically examine how haptic VR simulator (Simodont®) can enhance the preclinical dental education experience particularly in the context of operative dentistry. We specify 4 distinct research themes to explore, namely: simulator validity (face, content and predictive), human factors in 3D stereoscopic display, motor skill acquisition, and curriculum integration. Methods: Chapter 3 explores the face and content validity of Simodont® haptic dental simulator among a group of postgraduate dental students. Chapter 4 examines the predictive utility of Simodont® in predicting subsequent preclinical and clinical performance. The results indicate the potential utility of the simulator in predicting future clinical dental performance among undergraduate students. Chapter 5 investigates the role of stereopsis in dentistry from two different perspectives via two studies. Chapter 6 explores the effect of qualitatively different types of pedagogical feedback on the training, transfer and retention of basic manual dexterity dental skills. The results indicate that the acquisition and retention of basic dental motor skills in novice trainees is best optimised through a combination of instructor and visualdisplay VR-driven feedback. A pedagogical model for integration of haptic dental simulator into the dental curriculum has been proposed in Chapter 7. Conclusion: The findings from this thesis provide new insights into the utility of the haptic virtual reality simulator in undergraduate preclinical dental education. Haptic simulators have promising potential as a pedagogical tool in undergraduate dentistry that complements the existing simulation methods. Integration of haptic VR simulators into the dental curriculum has to be informed by sound pedagogical principles and mapped into specific learning objectives.
38
Vincent, Aviva. "Feasibility of Canine Support in Pediatric Dentistry." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1554476390381119.
39
Hjalmarsson, Lars. "On cobalt-chrome frameworks in implant dentistry /." Göteborg : Department of Dentistry/Dental Materials Science, Institute of Odontology, 2009. http://hdl.handle.net/2077/21179.
40
Teixeira, Hugo C. "Wellbeing and Occupational Stress in Dentistry Academics." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/419085.
Анотація:
Occupational stress can impact adversely on individuals’ physical, mental, and emotional wellbeing, and have occupational consequences. Dentistry professionals can experience significantly higher levels of occupational stress, and poorer wellbeing, than other health professionals. Previous research on occupational stress among dentistry professionals has demonstrated differences by individual-level personal and professional characteristics, identified work content and work context sources of occupational stress, and indicated that dentists may not be able to relieve their stress properly. Previous research has, however, focused on dentistry clinicians and students, and less is known about dentistry academics who are likely to have different correlates and sources of occupational stress given differences in their occupational role. Therefore, this research program aimed to investigate occupational stress and wellbeing among dentistry academics including individual-level personal and professional characteristics associated with poor wellbeing, common sources of occupational stress and associations with poor wellbeing, and self-care activities and associations with wellbeing.
This research program used a cross-sectional design with a convenience sample of academics in dentistry departments across nine universities in Australia and New Zealand. The thesis comprises three quantitative studies and examined data from an online survey to assess wellbeing, personal and professional characteristics, perfectionism, work content and context sources of occupational stress, and self-care activities. Data were analysed using multiple regression.
A total of 119 people consented to the online survey, with 94 (78.9%) providing complete data. The average age of respondents was 50 (±11.7) years, 56.8% were men, and 67% had more than 10 years’ experience as an academic. Results demonstrated poor wellbeing among this group of dentistry academics, with an average score on the iii Psychological General Wellbeing Index (PGWBI) of 67.0±14.1. Lower scores were obtained on PGWBI dimensions of vitality (58.3±19.4), anxiety (62.0±16.9) and positive wellbeing (62.2±17.2) than other dimensions.
Study one found a significant association between hours of undergraduate teaching and psychological wellbeing, after adjustment for age, gender, income, and overall health (F(6,79)=19.651, p<.001, adj.R2=.56). Dentistry academics doing more than six hours of undergraduate teaching per week had poorer wellbeing than their counterparts (rpb(92)=- .288, p=.005, age r(84)=.315, p<.005). There were no significant bivariate associations between perfectionism, or other personal and professional characteristics, and wellbeing.
Study two found that the leading sources of “substantial” occupational stress were work overload (61% agreement), administration demands (55% agreement), multiple role demands (54% agreement), and time pressure at work (49% agreement). A multiple linear regression model comprising job future, workload and responsibility, job satisfaction, social support, time pressure at work, age, income management, and overall health significantly predicted psychological wellbeing, F(8,77)=13.141, p<.0001, adj.R2=.53, with no significant associations for any of the specific sources of stress with wellbeing.
Study three found that the most common types of self-care done “frequently” were lifestyle (57.8%), exercise (44.4%), and recreational (44.4%) activities. The least frequent were intrapersonal activities (13.3%). The multiple linear regression model comprising self-care domains of intrapersonal, interpersonal, exercise, recreational, and professional activities, with adjustment for age, gender, income management, and overall health significantly predicted psychological wellbeing, F(9,76)=9.705, p<.0001, adj.R2=.53, with no statistically significant associations between any of the individual self-care activity domains and wellbeing.
The findings of this research program contribute to evidence on occupational stress and wellbeing in dentistry academics and can inform workplace interventions. Results suggest that interventions to improve wellbeing in dentistry academics could prioritise those who are younger, with lower income, in poorer health, and/or teaching more than six hours of undergraduate teaching per week. These interventions could include individual-level and organisational-level strategies to help manage time pressure, work overload, administration demands, and multiple role demands; and increase social support and positive perceptions of job future and job satisfaction. Interventions could promote intrapersonal (e.g., gratitude, mindfulness), interpersonal (e.g., social support), and professional self-care activities (e.g., networking skills) given potentially low rates of these. Future research is warranted to extrapolate and confirm these findings with a larger sample, define the study sample homogeneously, and explore the impact of COVID-19 on sources of stress. Future research is also needed to provide a deeper exploration of ‘lived in’ experiences of dentistry academics related to aspects of undergraduate teaching that contribute to poor wellbeing, or specific aspects of the work role that contribute to work overload; and to explore other aspects of intervention delivery such as preferences for duration, frequency, and type of interventions.
If successful, such workplace interventions could reduce the adverse physical, psychological, behavioural, and organisational consequences commonly associated with poor wellbeing and occupational stress among dentistry academics, as well as the financial burden of related compensations claims. In turn these interventions could promote mental and physical wellbeing, and quality of life, as well as organisational indicators such as staff morale and overall work performance and productivity.
This work has not previously been submitted for a degree or diploma in any university. To the best of my knowledge and belief, the thesis contains no material previously published or written by another person except where due reference is made in the thesis itself.Thesis (Masters)
Master of Philosophy (MPhil)
School of Applied Psychology
Griffith Health
Full Text
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SOLIMEI, LUCA. "ADDITIVE MANUFACTURING AND 3D PRINTING IN DENTISTRY." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1081142.
Анотація:
CAD / CAM techniques applied to solving dental problems demonstrate that there are many solutions available on the market to help the dentist individually perform the rehabilitation of a dental element to meet the specific needs of each patient.
These manufacturing technologies close a digital workflow, potentially managed entirely by the dentist, which involves taking the impression of the oral cavity and the dental elements present through an intraoral scanner with the generation of a file on which to create the CAD project and to start extrapolating the file of the final work to be produced by subtractive or additive CAM. The 3D printing techniques allow to work easily with polymeric and ceramic materials, in order to create dental crowns that can satisfy practically all the needs encountered in the dental field.
Leaving aside the techniques applied to polymers, this PhD project focuses on the applications of ceramic materials.
This PhD thesis focuses on the design, study and implementation of 3D printing of ceramic supports specifically dedicated to the stabilization of dental implants. Through the development of a prototype of a 3D printer, it was possible to obtain the printing of ceramic products useful for the intended purpose.
42
Carraro, Eliane Aparecida Santos. "O uso do termo de consentimento informado como forma de verificação da responsabilidade civil por parte do cirurgião-dentista." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/23/23148/tde-01042011-130819/.
Анотація:
Na história recente, o exercício da profissão de Cirurgião-Dentista tem sido alvo de inúmeras ações judiciais das mais diversificadas, impetradas por pacientes descontentes com os resultados obtidos em seus tratamentos odontológicos. Considerando os direitos inerentes à pessoa do paciente e a enorme preocupação da classe odontológica com relação às demandas judiciais originadas pela falta de informação adequada a seus pacientes, alguns aspectos importantes do Consentimento Informado bem como da própria responsabilidade civil odontológica estão abordados neste estudo, a fim de esclarecer e evitar as constantes demandas judiciais contra dentistas por falta de um termo de Consentimento Informado. A informação, seja verbal ou escrita, sobre um diagnóstico, procedimento terapêutico, ou tratamento odontológico aos pacientes ou familiares, e a forma como explicar de maneira compreensiva o que está sendo repassado é um grande conflito entre a classe odontológica nos dias atuais. O Consentimento Informado e o Termo de Consentimento Livre e Esclarecido vem ser a forma, verbal e escrita de como o cirurgião-dentista informa o seu paciente ou representante, de modo límpido, os atos e etapas, relacionados ao diagnóstico e ao seu tratamento terapêutico, esclarecendo os riscos e benefícios, vantagens e desvantagens de forma que possa, autonomamente, escolher por realizar, ou não, o possível tratamento. O objetivo deste trabalho foi realizar o levantamento e análise das decisões recursais dos Tribunais de Justiça do sul do Brasil, utilizando a Internet. Dos 102 acórdãos avaliados 30 são do Tribunal de Justiça do Paraná, 17 do Tribunal de Justiça de Santa Catarina e 55 do Tribunal de Justiça do Rio Grande do Sul. Em relação ao Consentimento Informado, Termo de Consentimento Livre e Esclarecido ou mesmo a prova da Informação, constatou-se que nos referidos acórdãos estes assuntos foram pouco citados, porém observou-se que quando mencionados serviram de subsídios consistentes para defesa do profissional.In recent history, the profession of dental surgeon has been the target of numerous lawsuits from more diverse, filed by patients dissatisfied with the results obtained in their dental treatment. Considering the inherent rights of the patient and the dental class of great concern with respect to lawsuits stem from the lack of adequate information to their patients, some important aspects of informed consent as well as from civil liability in dentistry are addressed in this study in order to clarify and avoid the constant lawsuits against dentists by a lack of informed consent The information, whether oral or written, about a diagnosis, therapeutic procedure, or dental treatment to patients or relatives, and how to comprehensively explain what is being passed is a major conflict between the dental class nowadays. Informed Consent and the Term of Consent has to be the case, verbal and written like the dentist tells the patient or his representative, so clear, the actions and steps, related to diagnosis and therapeutic treatment, accounting the risks and benefits, advantages and disadvantages so that you can, independently, choose to perform, or not, the possible treatment. The aim of this study was to survey and analysis of appellate decisions of the Courts of Justice in southern Brazil, using the Internet. Of the 102 judgments are assessed 30 of the Court of Paraná, 17 of the Court of St. Catherine and 55 of the Court of Rio Grande do Sul. Regarding Informed Consent, Termination of Consent or even proof of Information it was found that the judgments were seldom mentioned these issues, but noted that when mentioned served as subsidies for consistent defense of the professional.
43
Bailey, Sidney Lloyd. "Job satisfaction of dentists in the public sector in the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52902.
Анотація:
Thesis (MSc)--Stellenbosch University, 2002.ENGLISH ABSTRACT: It can safely be assumed that work is a central part of people's daily activities in modem times, and dentists and other health workers are no exception to this rule. The following benefits have been ascribed to having a job, namely that of being a source of money, activity, variety, temporal structure, social contacts, status and identity in society. To what extent does the job as dentist in the civil service provide fulfilment of these basic requirements of having a satisfying job? Considering the number of resignations in recent years of state employed dentists and the well known and often reported "brain drain" of South African professionals, it is important to assess the status of job satisfaction amongst our health professionals, especially those within the state employ. These dentists are responsible for the health care delivery to the impoverished masses who make up a large proportion of the South African population. This study set out to determine the level of job satisfaction among state dentists and how this is perceived by them and reflected in their work performance. It was the aim of the researcher to provide some insight into the working lives of a very important sector of the primary health care providers employed by the Department of Health of the Western Cape Provincial Government. The outcome of the study could be used as a basis for further research in this area. A survey was conducted among all state employed dentists in the Western Cape, excluding dentists attached to the military or academic institutions. The survey instrument consisted of a structured, quantitative questionnaire as well as an open-ended section for comment on specific issues. Furthermore, an indepth semi-structured interview was conducted with one dentist in order to write a case report on the work experience of a state employed dentist.The major fmdings of this study are the following: i) The main determinants of job satisfaction revolve around the work environment, and dentists in state employ enjoy staff support, feel good about what they do for patients, and the standard of work done, but are unhappy about income, lack of respect by patients, senior management and colleagues in private practice. Limited treatment options, poor procurement systems and frequent breakdown of equipment affect their sense of job satisfaction negatively. ii) The level of dissatisfaction is not of such a proportion to persuade them to leave the service, as most dentists would like to remain in their posts. However, most dentists agree that there are no incentives for improving work performance. iii) Dentists responded to their sense of job satisfaction in different ways. While some admitted that their performance is directly linked to how well it is going at work, a large percentage of respondents reported that they do not allow their work performance to be influenced by their perceived job dissatisfaction. iv) Ifwe look at the case study, it is evident that perceived satisfaction or dissatisfaction depends on the individual and how he or she views the world. In this particular case the dentist was very realistic about his ambitions as a person and as a dentist, and set goals for himself within these boundaries. The result is that he remains motivated and satisfied.
AFRIKAANSE OPSOMMING: Dit kan geredelik aanvaar word dat werk die kern uitmaak van mense se daaglikse aktiwiteite, en tandartse en ander gesondheidswerkers is geen uitsondering nie. Die volgende voordele word aan werk toegeskryf: bron van inkomste, aktiwiteit, afwisseling, tydsindeling, sosiale omgang, status en posisie in die gemeenskap. Tot watter mate voldoen die werk van 'n tandarts in die staatsdiens aan die basiese vereistes van 'n bevredigende werk? As mens die getal bedankings van tandartse uit die staatsdiens oor die afgelope jare in ag neem, asook die welbekende en gereeld vermelde "brein trein" van professionele mense in Suid-Afrika, voel mens dis belangrik om vas te stel watter werksbevrediging heers onder gesondheidspersoneel, veral diegene in die staatsdiens. Tandartse in die staatsdiens is verantwoordelik vir gesondheidsdienslewering aan die arm massas, wat die oorgrote meerderheid uitmaak van die Suid-Afrikaanse bevolking. Hierdie studie was daarop gemik om die werksbevredigingsvlak van staatstandartse vas te stel, asook hoe hulle dit ervaar en demonstreer in hul werkverrigting. Die navorser het dit ten doel gehad om insig te bring in die werksbestaan van 'n baie belangrike komponent van gesondheidswerkers in diens van die Departement van Gesondheid in die Wes-Kaapse Provinsiale Regering. Die bevindinge van die studie kan dien as basis vir verdere navorsing op hierdie gebied. 'n Meningspeiling is onderneem onder staatstandartse in die Wes-Kaap, met tandartse verbonde aan die weermag en akademiese instellings uitgesluit. Die opname-instrument het bestaan uit 'n gestruktureerde kwantitatiewe vraelys saam met 'n afdeling vir kommentaar oor spesifieke knelpunte. Verder was daar 'n semi-gestruktureerde diepte-onderhoud gevoer met een tandarts om verslag te doen oor 'n gevallestudie rakende die werksondervinding van 'n staatstandarts. Die kembevindinge van die studie was: i) Die belangrikste determinante van werksbevrediging betrek die werksomstandighede. Terwyl tandartse ondersteuning geniet van hul mede-personeel, goed voeloor hul diens aan pasiente, en die standaard van hul werk, voel hulle ongelukkig oor inkomste, gebrek aan respek van pasiente, senior bestuur en kollegas in die privaat sektor. Beperkte behandelingskeuses, swak voorsieningsisteme en knaende gebrek aan toerusting affekteer hul werksbevrediging negatief. ii) Die mate van werksbevrediging is nie van so 'n aard dat dit hulle motiveer om die diens te verlaat nie, want die meeste tandartse wil hul poste behou. Die meeste tandartse voel egter dat daar nie enige aanmoediging bestaan vir verbeterde werkverrigting nie. iii) Tandartse reageer verskillend op hul menmg omtrent werksbevrediging. Terwyl sommige erken dat hul werkverrigting direk gekoppel is aan hoe goed dit by die werk gaan, het 'n groot persentasie van deelnemers aan die opname aangedui dat hulle nie toelaat dat hul werkverrigting deur hulonbevredigende werksomstandighede geaffekteer word nie iv) As ons die gevallestudie beskou, is dit duidelik dat of bevrediging ondervind word, al dan nie, van die individu afhang, en sy of haar lewensbeskouing. In hierdie spesifieke geval, was die tandarts baie realisties omtrent sy ambisie as persoon en as tandarts, en het sy doelwitte binne hierdie perke gestel. Die uitslag is dat hy gemotiveerd en bevredig bly.
44
Cerny, Z. J. Comino. "Margaret Estelle Barnes And Annie Praed-Australia'S First Women Graduates In Dentistry: Twentieth Century Femininity And Professionalism In Dentistry." Thesis, The University of Sydney, 2000. http://hdl.handle.net/2123/5098.
45
Busto, Robert Alexander. "Reaching Special Populations in Dentistry with General Anesthesia." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu158798466339008.
46
Suliman, Shameela Haroon. "The soft-tissue profile preferences of a group of lay persons and professionals." Thesis, University of the Western Cape, 2008. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8182_1267657357.
Анотація:
"
Although facial aesthetics has always been a part of orthodontic diagnosis and treatment planning, the criteria for facial evaluation have been somewhat arbitrary. They are often based on parameters from the field of art or from evaluating faces chosen by orthodontists or other professionals. The aims and objectives of the study were to determine the soft-tissue profile preference of a group of lay persons and professionals
to compare the preferences of the male and female assessors (lay persons group) with regard to the preferred profiles for the maleand female patient respectively
to test similarities and differences in the professional's perceptions of the various profiles. This qualitative study was undertaken at the orthodontic clinic at UWC using post-treatment soft tissue profile photographs of patients who had attended the orthodontic clinic..."
47
Chintapalli, Ravi Kiran. "Influence of sandblasting on zirconia in restorative dentistry." Doctoral thesis, Universitat Politècnica de Catalunya, 2012. http://hdl.handle.net/10803/96981.
Анотація:
La utilización de circona tetragonal policristalina estabilizada con 3 % mol de itria (3Y-TZP)
para fabricar coronas e implantes ha sufrido una fuerte expansión recientemente debido a las
buenas propiedades mecánicas, estéticas y de biocompatibilidad que posee este material. La
microestructura y composición exacta de 3Y-TZP son específicamente diseñadas por los
fabricantes para adecuarse a las normativas existentes. Durante su procesamiento, las prótesis
cerámicas son tratadas superficialmente por métodos como el arenado para mejorar su adhesión
al cemento protésico y a la porcelana que cubre la pieza dental. Ahora bien, no todos los
fabricantes dentales recomiendan el arenado de las coronas previamente a su implantación, ya
que el arenado puede introducir defectos superficiales que pueden afectar la integridad
estructural de la prótesis así como producir cambios cristalográficos en la superficie.
A pesar de que el efecto de arenado en circona ya ha sido parcialmente estudiado, no se han
considerado exhaustivamente muchos aspectos como la severidad de las condiciones de arenado,
el efecto en las propiedades superficiales, el daño subsuperficial y los cambios de fase. Una
comprensión detallada de estos aspectos es necesaria para escoger correctamente las condiciones
de trabajo del arenado y para mejorar el diseño microestructural de estos materiales. Esto
mejoraría la vida a largo plazo de los implantes cerámicos evitando o retrasando posibles fallos
de la pieza.
En este trabajo, se ha estudiado el efecto del arenado en 3Y-TZP con diferentes tamaños de
grano bajo diferentes condiciones de arenado. También se ha estudiado el efecto de la adición de
de nanotubos de carbono multicapa (MWCNT, 0.5-2 vol. %) a una matriz de 3Y-TZP.
Una parte del trabajo ha consistido en el estudio de las propiedades mecánicas y de resistencia a
la degradación hidrotérmica de 3Y-TZP nanométrica y de los nanocompuestos 3YTZPMWCNT
con tamaño de grano nanométrico (90-150 nm) producidos por “spark plasma
sintering”, los cuales se ha encontrado que poseen una menor tenacidad de fractura por
indentación que 3Y-TZP con tamaño de grano de 300 nm. La adición de un 2% en volumen de
MWCNT aumenta la tenacidad de fractura por indentación en alrededor de un 15% con respecto
a la matriz del mismo tamaño de grano. El módulo de elasticidad apenas cambia mientras que la
dureza disminuye ligeramente.The use of tetragonal zirconia polycrystals (3Y-TZP) in dental restorations such as crowns and implants has recently increased attention due to their very good aesthetic appearance and mechanical properties in addition to biocompatibility. The restorations undergo several surface treatments such as sandblasting for better adhesion to luting cements and veneering porcelain. However, there is some controversy about using sandblasted crowns, as sandblasting introduces surface flaws and defects that can compromise the strength of the crown as well as crystallographic changes at the surface. Though the effect of sandblasting in zirconia has been previously studied to some extent, many issues like severity of the conditions, effect on surface mechanical properties, subsurface damage and phase transformation zone size have not been still fully addressed. Comprehensive understanding of these aspects will help in choosing better sandblasting conditions and also to improve the microstructural design of the materials for long term performance of the restorations so that clinical failures can be avoided or delayed. In this thesis, the effect of sandblasting on 3 mol% yttria stabilized zirconia (3Y-TZP) with different grain sizes has been studied under different sandblasting conditions. Additionally, nanocomposites formed by adding multiwall carbon nanotubes (0.5-2 vol. %) to 3Y-TZP matrix have been also studied. Initially, the study has been focused in the mechanical properties and hydrothermal degradation resistance of nanometric grain size 3Y-TZP and zirconia multiwall carbon nanotubes nanocomposites (3YTZP-MWCNT). Nanometric grain size 3Y-TZP (90-150 nm) produced by spark plasma sintering have slightly lower toughness compared to standard zirconia with grain size 300 nm. Adding multiwall carbon nanotubes improve the indentation fracture toughness nearly 15% compared to monolithic materials. Elastic modulus hardly changes while hardness decreases slightly for 2 vol.% nanotubes. The materials were subjected to sandblasting using two particle sizes, two pressures and two impact angles, After sandblasting the materials were analyzed looking for roughness, phase transformation and damage. In addition the change in mechanical properties and in hydrothermal degradation resistance induced by sandblasting was evaluated. It has been found that increasing particle size and pressure increases surface roughness. The bi-axial strength of zirconia has been studied only in standard 300 nm grain size 3Y-TZP. The main result has been to show that at impact angle of 90º the biaxial strength increases when sandblasted with 110 um particles while it decreases with 250 um particles. On the other hand, the strength slightly increases when sandblasted under an impact angle of 30° irrespective of the particle size. By using nanoindentation it is shown that mild sandblasting conditions (110 um particle size, 2 bars pressure) have no effect on the surface mechanical properties such as, elastic modulus and contact hardness. A model based on the formation of residual compressive stresses is presented in order to explain the indentation the shorter length of the indentation cracks in sandblasted material as well as to rationalize the increase in strength of sandblasted material under mild sandblasted conditions. The microstructural change induced by sandblasting near the surface consists of: i) a thin layer of plastically deformed grains; ii) phase transformation; and iii) occasional microcracking. The fraction of monoclinic volume fraction induced after sandblasting under the studied conditions is of about 10-15%, and with transformation up to a depth of about 10-13 um. Finally it is shown that in sandblasted conventional 3Y-TZP, the kinetics of hydrothermal degradation are slower than in the starting material.
48
Sjögren, Petteri. "Randomised clinical trials and evidence-based general dentistry /." Linköping : Univ, 2004. http://www.bibl.liu.se/liupubl/disp/disp2004/med865s.pdf.
49
Soto, Susana. "Information in dentistry : patterns of communication and use." Thesis, University of Sheffield, 1992. http://etheses.whiterose.ac.uk/2955/.
Анотація:
The aim of the present study is to develop an explanation of the information seeking behaviour of dental professionals that relates the three main instances of this behaviour (users, their information needs, use of information sources) in a meaningful way. The research looks into the information-seeking behaviour of one of the less investigated groups of health practitioners and it does so from a qualitative point of view, using data collected by means of semi-structured interviews. 110 dental professionals were interviewed between May 1989 and June 1990. The interviewees were dental professionals in Sheffield District Health Authority (postgraduate students; academic staff; community service dentists; hospital staff and general dental practitioners). A coding paradigm based on grounded theory was applied to analyze their replies. This basic paradigm explains the information-seeking behaviour of dental professionals in terms of 'conditions' that provoke seeking information; 'strategies' implemented to seek information; 'interactions' the ways in which information sources are used. The conditions for their information needs are created by their clinical tasks (diagnosis, treatment and delivery of dentistry) or their academic tasks (teaching and lecturing, research and publications). Dental professionals apply six basic strategies for seeking information: Reading, Talking, Enquiring, Attending/organizing continuing education events, Watching and Using the library. Each of these strategies is associated with the use of certain information sources: Reading with written/printed literature, Talking with colleagues, Enquiring with individuals from other occupations or professions, Attending... with courses and conferences, Watching with audiovisual materials and Using the library with the use of printed literature via a library service. While the strategies are common to every subgroup in the study, the actual patterns of information-seeking vary from subgroup to subgroup because the strategies are implemented in different ways by each of them. The reason for this variation is determined by the particular combination of clinical and academic tasks of each subgroup. The findings - apart from describing how a representative group of dental professionals uses a variety of information sources - have several implications for library and information services, computer applications, dental training and further research in health care user studies.
50
Mandy, Philip John. "The nature and status of chiropody and dentistry." Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300753.