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  • About
  • 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.
1

Studies on rehabilitation with extensive fixed cantilever prostheses clinical, experimental, functional investigations and cost analysis /

Carlson, Bill R. January 1994 (has links)
Thesis (doctoral)--Göteborg University, 1994. / Added t.p. with thesis statement inserted. Includes bibliographical references.
2

Studies on rehabilitation with extensive fixed cantilever prostheses clinical, experimental, functional investigations and cost analysis /

Carlson, Bill R. January 1994 (has links)
Thesis (doctoral)--Göteborg University, 1994. / Added t.p. with thesis statement inserted. Includes bibliographical references.
3

A pilot study evaluating retention and stability of two denture techniques a thesis submitted in partial fulfillment ... in denture prosthodontics ... /

Bernier, Steven H. January 1979 (has links)
Thesis (M.S.)--University of Michigan, 1979.
4

A pilot study evaluating retention and stability of two denture techniques a thesis submitted in partial fulfillment ... in denture prosthodontics ... /

Bernier, Steven H. January 1979 (has links)
Thesis (M.S.)--University of Michigan, 1979.
5

Avaliação funcional de próteses totais e satisfação do paciente = correlação com performance mastigatória e limiar de deglutição / Functional assessment of dentures and patient satisfaction : correlation with masticatory performance and swallowing threshold

Lucena, Sílvia Carneiro de 16 August 2018 (has links)
Orientador: Altair Antoninha Del Bel Cury / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-08-16T11:46:32Z (GMT). No. of bitstreams: 1 Lucena_SilviaCarneirode_M.pdf: 2259749 bytes, checksum: 2b22cec4dff4521ca67b434ebf089b02 (MD5) Previous issue date: 2010 / Resumo: O sucesso da reabilitação com prótese total está condicionado ao atendimento de requisitos técnicos e da satisfação do paciente. Dentre os requisitos técnicos, usuários de prótese apontam a mastigação como mais importante, porém, estudos têm sugerido uma fraca associação entre a qualidade técnica da prótese e a satisfação dos pacientes. Desta forma, o objetivo deste estudo foi verificar a correlação entre a avaliação de próteses totais feita pelo paciente e pelo cirurgião-dentista, assim como investigar a correlação destas duas variáveis com medidas objetivas da função mastigatória. Foram selecionados 28 voluntários (cinco homens e 23 mulheres, idade média 71,1 anos), usuários de próteses totais há pelo menos seis meses, com boa saúde geral e sem sinais ou sintomas de disfunção temporomandibular. A avaliação da satisfação com as próteses pelo paciente foi realizada com auxílio da escala visual analógica (escores de 0-100) e a qualidade técnica das próteses foi avaliada por um cirurgião-dentista que atribuiu escore de 0 a 9 considerando aspectos funcionais. Os dentes posteriores das próteses foram avaliados quanto ao desgaste dental, considerando a presença ou ausência de anatomia oclusal. A função mastigatória foi avaliada pelo método de fracionamento de peneiras, no qual o voluntário mastigava porções de 17 cubos de Optocal. A performance mastigatória (PM) foi avaliada após 40 ciclos mastigatórios pelo tamanho mediano de partícula. O limiar de deglutição (LD) foi determinado pelo número de ciclos mastigatórios contados até o voluntário sentir vontade de deglutir e tamanho mediano da partícula obtida após esses ciclos. As correlações entre os resultados da avaliação da prótese pelo profissional com a satisfação do paciente e com a função mastigatória foram obtidas pelo coeficiente de Spearman. A correlação entre satisfação do paciente e função mastigatória foi determinada pelo coeficiente de Pearson. O Teste t foi aplicado para comparar os escores de satisfação entre as próteses superiores e inferiores e a função mastigatória entre indivíduos com e sem desgaste dental. O nível de confiança estabelecido foi de 95%. A satisfação geral dos pacientes com ambas as próteses obteve escore 49,1. A prótese superior obteve maiores escores de satisfação que a inferior para todos os fatores avaliados, mas apenas para estabilidade houve diferença estatisticamente significante (p=0,002). A avaliação da qualidade das próteses pelo profissional obteve escore mediano de 6 e não apresentou correlação com a satisfação do paciente. A análise da performance mastigatória e limiar de deglutição mostrou tamanho mediano de partícula de 5,5 (±1,0) mm e 4.9 (±1,2) mm, respectivamente. Os dados de ambos os testes mastigatórios não apresentaram correlação significativa com a satisfação do paciente (p>0,05). A correlação entre a função mastigatória e a qualidade da prótese não foi estatisticamente significante (PM: r=-0,103; LD: r=0,011) e não houve diferença do grau de trituração do alimento teste para as próteses com ou sem desgaste dental (PM: p=0,137; LD: p=0,589). Dentro das limitações do trabalho, pode-se concluir que não houve correlação entre a avaliação funcional das próteses totais e a satisfação do paciente e não foi observada correlação destas variáveis com a função mastigatória / Abstract: For a successful rehabilitation, it is important for complete dentures to accomplish adequate technical requirements and patients' satisfaction. Dentures wearers have pointed out an adequate mastication as the most important aspect of prosthetic rehabilitation, however, studies have suggested a poor association between patients' satisfaction and denture quality. Thus, the aim of this study was to evaluate the relation between patients' and dentists' assessment of dentures and the correlation of these variables with objective measures of masticatory function. Twenty eight volunteers (five men and 23 women, mean age 71.1 years), who wore both complete dentures for at least 6 months, with good general health and no signs or symptoms of temporomandibular joint disorders, were selected. Their level of satisfaction with dentures was assessed on a visual analogue scale (scores from 0 to 100) and the technical condition of dentures were evaluated by an experienced dentist that attributed scores from 0 to 9 considering functional aspects. Tooth wear was also assessed on posterior teeth of dentures considering the presence of occlusal anatomy. The evaluations of masticatory function were performed using a sieving method in which the volunteers were instructed to chew portions of 17 cubes of a standardized artificial test food, Optocal. The masticatory performance (MP) was assessed after 40 masticatory cycles by the median particle size. The swallowing threshold (ST) was determined by the number of cycles performed until the time the volunteers felt the urge to swallow and by the median particles size of comminuted food. The correlation of functional assessment of denture by dentist with volunteers' satisfaction and masticatory function were calculated by Spearman's correlation coefficients. The correlation between volunteers' satisfaction scores and masticatory function was performed by Pearson's correlation coefficient. Student t test was used to compare satisfaction scores between upper and lower dentures and also to compare masticatory function of subjects wearing dentures with and without excessive tooth wear. The significance level was fixed at 95%. The mean general satisfaction score of the volunteers with both dentures was 49.1. The means satisfaction scores for upper dentures were superior to the lower ones for all factors evaluated but significant differences were observed only for stability (p=0.002). Dentures assessment by dentist had a median score of 6 and had no correlation with patients' satisfaction. The median particle size anchieved by volunteers for masticatory performance and swallowing thresholds was of 5.5 (±1.0) mm and 4.9 (±1.2) mm, respectively. Data of both masticatory tests showed no significant correlation with patients satisfaction scores (p>0.05). No significant correlation was observed between masticatory function and dentist evaluation of dentures (MP: r=-0.103; SWT: r=0.011) and there was no different of food comminution between subjects with and without excessive tooth wear. (MP: p=0.137; SWT: p=0.589). Within the limitations of this study, it can be concluded that there was no correlation between functional assessment of dentures and patients' satisfaction and no correlation was observed between these variables and masticatory function / Mestrado / Protese Dental / Mestre em Clínica Odontológica
6

Comparative assessment of conventional vs. CAD/CAM complete denture fabrication techniques on patient satisfaction, quality of life and prosthesis biofilm

Jia-mahasap, Wissanee 01 May 2017 (has links)
Objectives: The primary objective was to assess the impact of two denture fabrication techniques, conventional and CAD/CAM, on oral health-related quality of life (OHRQoL) and patient satisfaction in complete denture wearers. The secondary objective was to compare the level of microorganisms present on complete dentures from the two fabrication techniques. Methods: Twenty-eight completely edentulous subjects (16 men and 21 women, age range from 49 to 87 years old.), who had been edentulous for at least 6 months, were wearing ill-fitting complete dentures, or unsatisfied with their existing complete dentures were recruited. Subjects were randomized to conventional and computer-aided design/ computer-aided manufacturing (CAD/CAM) treatment groups. Subjects in both groups were given the OHIP-EDENT (Oral Health Impact Profile for Edentulous Patients) and patient satisfaction questionnaires to record the data at baseline and at 1 month post-delivery of the new prostheses. Plaque samples were collected from intaglio surfaces of maxillary complete dentures at 1 month post-delivery to culture for any colonization of bacteria and/or yeasts. Results: There was a significant reduction in OHIP-EDENT scores within both treatment groups at the 1 month follow-up (p < 0.05). There was also a significant reduction in almost all OHIP-EDENT domains scores at 1 month. Gender was significantly associated with OHIP-EDENT score at baseline (p = 0.0419) and at 1 month (p = 0.0152). Female subjects tend to have higher OHIP-EDENT scores than male subjects. There was no significant difference in patient satisfaction between treatment groups both at baseline and at the 1 month visit for almost all aspects of satisfaction (p> 0.05). Appearance of maxillary denture was the only significant difference in patient satisfaction across treatment groups (p = 0.0213). The comparisons of microbial counts showed no significant difference between treatment groups. Conclusions: There were no significant difference on oral health-related quality of life (OHRQoL) and patient satisfaction between two treatment groups at baseline and 1 month. There was no significant difference in microbial counts between two treatment groups.
7

A comparative study to evaluate patient satisfaction with conventional dentures and implant retained overdentures.

Al-Makki, Amjad January 2006 (has links)
<p><span style="font-size: 8pt / " text-align:="" font-family:="" color:="">The edentulous jaw is a common feature in elderly patients that had lost their teeth during life due to local reasons such as poor oral hygiene and dental caries as well as periodontal disease. Hence these patients are the victims of biological phenomenona that lead to difficulties in different aspects of patient comfort with dentures. Clinicians are always concerned to minimize these difficulties and increase patient comfort through manufacturing a proper prosthesis to substitute for the loss of the natural teeth as well as the surrounding structures for optimum satisfaction and improved quality of life of the patient. The aim of this study was to evaluate patient satisfaction regarding function and aesthetics with conventional mandibular dentures and implant retained mandibular overdentures in denture wearers.</span></p>
8

Detecção da expressão dos genes HWP1, ALS1 e ALS3 de C.albicans, por meio de RT-PCR em tempo real, após desinfecção química e por microonda, de resina acrílica para confecção de dentaduras / HWP1, ALS1 and ALS3 genes expression in Candida albicans after chemical or microwave disinfection of acrylic resin for denture prosthesis using real time PCR

Pinto, Luciana de Rezende 24 June 2010 (has links)
A desinfecção de dentaduras promove o controle do biofilme microbiano e previne doenças, como a estomatite por uso de dentadura, associada à presença de Candida albicans. A expressão dos genes HWP1, ALS1, ALS3 deste fungo está relacionada à adesão das células fúngicas às do hospedeiro. O objetivo deste estudo foi detectar e quantificar a expressão desses genes em células planctônicas e biofilme de Candida albicans, desenvolvidos sobre superfícies de resina acrílica, após tratamento com dois métodos de desinfecção. Corpos de prova de resina acrílica, previamente tratados por hipoclorito de sódio 1%, microondas, e um grupo não tratado, foram inoculados com Candida albicans para desenvolvimento de biofilme. O biofilme e as células planctônicas foram coletados em três tempos distintos, correspondentes às etapas de desenvolvimento do biofilme: inicial (6h), intermediária (12h) e madura (48h) e a expressão gênica foi quantificada pelo ensaio de RT-PCR em tempo real. Os dados obtidos foram submetidos ao teste estatístico ANOVA two-way e pós-teste de Bonferroni; valores de p<0,05, p<0,01 e p<0,001 foram considerados significantes. Os três genes avaliados foram detectados e quantificados por RT-PCR em tempo real, em biofilmes e células planctônicas, independente do grupo de tratamento ou tempo de desenvolvimento do biofilme. A expressão dos genes ALS1 e ALS3 variou de acordo com o tempo de desenvolvimento do biofilme e, e com o tratamento da superfície. Ocorreu diferença significativa (p<0,001) entre a expressão desses genes nas superfícies tratadas por hipoclorito de sódio e microondas, além de diferenças significativas (p<0,001) na expressão gênica entre células planctônicas e biofilme, para os tratamentos avaliados. Concluiu-se que os tratamentos de desinfecção alteram o padrão da expressão dos genes ALS1 e ALS3 em biofilmes desenvolvidos sobre superfície de resina acrílica e em células planctônicas e este padrão foi diferente entre os tratamentos de desinfecção. / Complete dentures disinfection promotes biofilm control and prevents diseases such as denture stomatitis associated with the presence of Candida albicans infection. The expression of the genes HWP1, ALS1, ALS3 in this fungus is related to the adhesion of fungal cells to the host tissues. Therefore, the aim of this study was to detect and quantify the expression of these genes in planktonic cells and biofilms of Candida albicans, developed on acrylic resin surfaces, after treatment with two disinfection methods. Specimens of acrylic resin, previously treated by 1% sodium hypochlorite or microwave, and an untreated group were inoculated with Candida albicans for biofilm development. Biofilm and planktonic cells were collected at three different time points corresponding to biofilm development stages: initial (6 h), intermediate (12h) and mature (48h). The total RNA of these samples was obtained and the gene expression for mRNA of HWP1, ALS1 and ALS3 were quantified by Real-Time RT-PCR assay. The data obtained were assessed throught two-way ANOVA and Bonferroni post-test. Significant levels were determined for p values at <0.05. The three genes were detected and quantified in both biofilms and planktonic cells regardless of treatment condition or time of biofilm development. ALS1 and ALS3 expression varied according to the time point, and surface treatment. Significant differences (p <0.001) were showed between gene expression on surfaces treated with sodium hypochlorite and microwave, and significant differences (p <0.001) were showed in gene expression between planktonic and biofilm cells. It can be concluded that the disinfection procedures affect the ALS1 and ALS3 expression patterns in Candida albicans denture biofilms and planktonic cells. Additionaly, differential gene expression patterns were observed among the disinfection treatments.
9

Eficiência mastigatória de indivíduos portadores de prótese total com arco dental reduzido / Masticatory efficiency of complete denture wearers with reduced dental arch

Iegami, Carolina Mayumi 02 September 2011 (has links)
Um dos obstáculos na confecção das próteses totais é a diminuição de espaço intermaxilar para a montagem dos dentes artificiais posteriores, particularmente dos segundos molares, que influencia o tempo dispendido pelo profissional, pois gera a necessidade de desgaste da base de prova e muitas vezes do próprio dente. Na tentativa de contornar esse obstáculo, em alguns casos, tem-se suprimido a montagem dos segundos molares, uma vez que a ausência destes elementos não influencia a estética, fonética e conforto. Não há relatos na literatura que abordam este assunto, apesar de existirem estudos com arco encurtados e de performance mastigatória de próteses. O objetivo deste estudo foi comparar a eficiência mastigatória de pacientes portadores de próteses totais maxilomandibulares com arco reduzido (sem os segundos molares superiores e inferiores) e com o arco completo. Vinte indivíduos usuários de próteses totais maxilomandibulares, divididos em dois grupos aleatoriamente, receberam aparelhos protéticos novos. O grupo 1 recebeu as próteses sem os segundos molares e o grupo 2, com segundo molares. Após as consultas de controle, foi realizado o primeiro teste de eficiência mastigatória com Optocal. Quinze dias após o primeiro teste de performance mastigatória, foi realizado um novo teste, neste momento foram posicionados os segundos molares no grupo 1 e removidos no grupo 2. O material cominuído foi tratado e peneirado em uma pilha de peneiras sob vibração. A média e desvio padrão da eficiência mastigatória dos sujeitos no teste com todos os dentes posicionados foi de 4 e 0,68, respectivamente. Enquanto que, no teste sem os segundos molares foi de 4,22 e 0,92, respectivamente. Em relação ao momento da remoção dos segundos molares, a média do grupo 1 foi de 4,22 e desvio padrão de 0,63 e, do grupo 2 foi de 3,78 e 0,72, respectivamente. De acordo com a análise estatística realizada (p<0,05) não houve diferença na eficiência mastigatória em próteses totais maxilo-mandibulares com arco dental terminando em primeiro ou segundo molares. Portanto, a montagem de dentes até primeiros molares pode ser executada quando necessário, sem que haja comprometimento da eficiência mastigatória. / One obstacle when placing posterior artificial teeth during the manufacturing of complete dentures is the reduction of spatial relationship of the maxillae to the mandible. It affects the work time of the technician, once it requires abrasion of the denture base and the artificial tooth itself. Occasionally, the placement of the second molars is suppressed, for it does not affect aesthetics, phonetics and comfort. There are no reports in literature on this subject; despite studies involving shortened dental arches and dentures masticatory performance. The aim of this study was to compare masticatory efficiency of maxillomandibular complete denture wearers with reduced dental arch (without superior and inferior second molars) and complete dental arch. Twenty subjects were divided in two groups randomly and received new dentures. Group 1 was given complete dentures without second molars and group 2 was given dentures with second molars. After post-insertion consults, the first masticatory efficiency test was taken with Optocal. Fifteen days after the first test, a new one was taken, in which second molars were positioned in group 1 and removed from group 2. Comminuted material was treated and sieved on a stack of sieves under vibration. Mean and standard deviation of subjects masticatory efficiency with complete dental arch was 4 and 0.68, respectively. While on the tests without second molars, mean and standard deviation were 4.22 and 0.92, respectively. Analyzing the moment of removal of second molars from the dental arch, mean of group 1 was 4.22 and standard deviation 0,63 and, group 2 3.78 and 0.72, respectively. According to the statistical analysis applied to this study (p<0,05), there were no differences on masticatory efficiency in complete dentures with or without second molars. Therefore, placing artificial teeth until first molars can be done when needed, without compromising masticatory efficiency.
10

Queijo minas frescal suplementado com probiótico para o controle de Candida sp. isolados da cavidade bucal de usuários de próteses totais - estudo duplo-cego randomizado / Minas frescal cheese supplemented with probiotics for control of Candida sp. isolated from oral cavity of complete denture wearers - double-blind randomized trial

Miyazima, Tatiana Yuriko 11 March 2014 (has links)
Os probióticos são organismos vivos que quando ingeridos em quantidades adequadas, conferem benefícios aos indivíduos. Um destes benefícios é a capacidade de inibir o crescimento de micro-organismos patogênicos como Candida. Para avaliar a redução ou inibição de Candida em usuários de próteses totais promovida pela ingestão de probióticos, foram recrutados 135 pacientes, dos quais 59 permaneceram até o final do período experimental de 8 semanas. A ingestão dos probióticos ocorreu através de sua incorporação em queijo minas frescal. Foram selecionados pacientes usuários de próteses totais, uni ou bimaxilares albergando Candida na cavidade bucal. As amostras foram coletadas através de um enxaguado bucal 1 semana antes do início do experimento e ao final do período experimental de 8 semanas. Foi determinado o número de UFC de Candida/ml da amostra. Os sujeitos da pesquisa (n=59) receberam embalagens com 20g de queijo minas frescal a cada 14 dias por 8 semanas consecutivas. Os participantes foram divididos aleatoriamente em três grupos, experimental 1 e 2, e controle. Os grupos experimentais receberam os queijos suplementados com probióticos, respectivamente, Lactobacillus acidophilus NCFM e Lactobacillus rhamnosus Lr-32, e o grupo controle recebeu o queijo sem suplementação probiótica. Os queijos possuíam semelhança quanto a aroma e cor. Além da quantificação de Candida, foram realizados testes para identificação das espécies e avaliação da atividade enzimática da fosfolipase e proteinase. Os resultados inferem que os probióticos L. acidophilus NCFM e L. rhamnosus Lr-32 suplementados em queijo minas frescal foram capazes de reduzir os níveis de Candida bucal, em pacientes usuários de próteses totais, após ingestão diária dos queijos por 8 semanas consecutivas. Antes e após 8 semanas do experimento, Candida albicans foi a espécie mais isolada dos pacientes nos três grupos avaliados. Não houve diferença significativa com relação à atividade enzimática da fosfolipase e proteinase, pelos isolados de Candida sp., antes e após 8 semanas de ingestão do queijo. Conclusão: os dados indicam que queijos contendo L. acidophilus NCFM ou L. rhamnosus Lr-32 tem o potencial de reduzir a colonização oral por Candida, sugerindo a sua utilização para reduzir o risco de candidoses da cavidade oral. / Probiotics are living organisms which when ingested in adequate amounts confer benefits to individuals. One of these benefits is the ability to inhibit the growth of pathogenic microorganisms such as Candida. Reduction or inhibition of Candida isolated from complete denture wearers, uni or bimaxillary, was evaluated by ingestion of minas frescal cheese supplemented with probiotics. 135 patients were recruited, who 59 remained until the end of the experiment. The participants were patients in treatment at the Faculdade de Odontologia da Universidade de São Paulo. The samples were collected through a rinsed mouthwash at the base line and 8 weeks of experiment, before the installation of the new prosthesis. The samples were inoculated on Saubouraud agar dextrose with chloramphenicol plates, incubated for 24-48 hours, in order to quantify in colony-forming units per milliliter (CFU/mL) of Candida presents in the oral cavity of these patients. Subjects who presented fungus positive culture received packages containing 20g of minas frescal cheese every 14 days for 8 consecutive weeks. The participants were divided into three groups: two experimental and one control. The experimental groups received the cheeses supplemented with probiotics Lactobacillus acidophilus NCFM and Lactobacillus rhamnosus Lr-32. The control group received the cheese without probiotic supplementation. The cheeses had similarity as flavoring and coloring. In addition to the quantification of Candida, tests for species identification, phospholipase and proteinase activities were carried out. The results infer that L. acidophilus NCFM and L. rhamnosus Lr-32 supplemented in minas frescal cheese were able to reduce the levels of oral Candida in complete denture wearers, after daily intake of cheeses for 8 weeks of the experiment. At baseline and after 8 weeks of the experiment Candida albicans was the most frequently isolated from denture wearers in all groups. Furthermore, no significant difference was observed in the phospholipase and proteinase activities by isolates of Candida sp., before and after 8 weeks of ingestion of cheese. Conclusion: The data indicate that L. acidophilus NCFM and L. rhamnosus Lr-32 has the potencial to reduce Candida colonization in oral cavity, suggesting its use for reducing the risk of oral candidiasis.

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