Dental Plaster
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Linear dimensional changes in plaster die models using different elastomeric materials
Dental impression is an important step in the preparation of prostheses since it provides the reproduction of anatomic and surface details of teeth and adjacent structures. The objective of this study was to evaluate the linear dimensional alterations in gypsum dies obtained with different elastomeric materials, using a resin coping impression technique with
Brazilian Oral Research. Publicado em: 2010-09
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14. Comparison between two tomographic sections in the diagnosis of external root resorption
OBJECTIVES: To assess the accuracy of coronal and sagittal CT sections to detect cavities simulating root resorption. MATERIAL AND METHODS: 60 mandibular incisors were embedded in plaster bases, and cavities with 0.6, 1.2 or 1.8 mm in diameter and 0.3, 0.6 or 0.9 mm in depth (small, medium and large cavities) were drilled on the buccal surfaces with high-spe
Journal of Applied Oral Science. Publicado em: 2010-06
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15. Assessment of Boltons dental ratio in Brazilians with normal occlusion and Class I and Class II division 1 Angles malocclusions. / AVALIAÇÃO DA PROPORÇÃO DENTAL DE BOLTON EM INDIVÍDUOS COM OCLUSÃO NORMAL NATURAL E MALOCLUSÕES DE CLASSE I E CLASSE II DIVISÃO 1 DE ANGLE.
Introduction: The Bolton analysis, analysis that quantifies the tooth size is an important reference for professionals seeking appropriate orthodontic finishing. Objective: The objective of this study is to verify that there is discrepancy between the subjects with normal occlusion and malocclusion Class I and Class II division 1 belonging to the selected sa
Publicado em: 2010
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16. Avaliação comparativa de características dos arcos dentários em tomografia computadorizada por feixe cônico e modelos de gesso / Comparative assessment of characteristics of the dental arches in cone-beam computed tomography and plaster models
O presente estudo teve por finalidade avaliar comparativamente o desempenho de imagens por tomografia computadorizada por feixe cônico (TCFC) em relação aos modelos de gesso para a análise de características dos arcos dentários, bem como verificar a reprodutibilidade destes métodos. A amostra compreendeu imagens por TCFC em cortes axiais, coronais e p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/03/2009
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17. Compensatory canine angulation in angle Class II and III patients
The aim of this study was to evaluate the occurence of compensation in mesiodistal axial inclinations of canines in skeletal malocclusions patients. The sample consisted of 25 Angle Class II, division 1 malocclusion (group 1) and 19 Angle Class III malocclusion patients (group 2). After measurement of dental angulations through a method that associates plast
Brazilian Oral Research. Publicado em: 2009-09
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18. Influence of anatomic reference on the buccal contour of prosthetic crowns
During clinical practice, when performing prosthetic rehabilitation with single crowns, improper reproduction of the dental contour by the dental laboratory is a common occurrence. Therefore, the present study evaluated the fidelity of the reproduction of the buccal contour in an upper left canine performed by three Dental Prosthesis Technicians (DPT) using
Brazilian Oral Research. Publicado em: 2009-09
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19. Comparative study of dental arch width in plaster models, photocopies and digitized images
The aim of this study was to comparatively assess dental arch width, in the canine and molar regions, by means of direct measurements from plaster models, photocopies and digitized images of the models. The sample consisted of 130 pairs of plaster models, photocopies and digitized images of the models of white patients (n = 65), both genders, with Class I an
Brazilian Oral Research. Publicado em: 2009-06
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20. Influência do tamanho das bases ósseas apicais no apinhamento dentário / Relationship of apical base length and dental crowding
The influence of many factors on dental crowding has been studied since long time ago, mainly in its relationship with anterior lower crowding. But, the influence of the apical bases length on the dental crowding was still not clarified. As there are evidences in the literature, it was decided to carry out the present study to investigate the relationship be
Publicado em: 2009
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21. InfluÃncia da adiÃÃo de polissacarÃdeos nas propriedades fÃsicas do gesso alfa
A partir da calcinaÃÃo da gipsita (CaSO4.2H2O) pode ser obtido o gesso α ou o gesso β, que possuem caracterÃsticas distintas, podendo ser aplicados em diversas Ãreas, tais como na construÃÃo civil, na indÃstria quÃmica, na indÃstria farmacÃutica, na odontologia, etc. A utilizaÃÃo de aditivos à uma prÃtica utilizada para se obter produ
Publicado em: 2009
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22. Effect of monomer content in the monomer-polymer proportion on complete denture teeth displacement / Efeito do conteudo de monomero na proporção monomero-polimero no deslocamento dental em protese total superior
The purpose of the study was to verify the linear displacement of the teeth in complete upper denture made with acrylic resin, with monomer content indicated by the manufacturer, with 25% in excess and 25% less, in the conventional and microwaves polymerization techniques. Thirty casts were made with type III stone plaster, based on silicone mould, represent
Publicado em: 2009
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23. The effect of enamel etching on the in vivo marginal adaptation of indirect composite resin restorations luted with a self-adhesive material / Efeito do condicionamento acido do esmalte na adptação marginal in vivo de restaurações indiretas em resina composta cimentadas com material autoadesivo
In vitro studies have suggested enamel-etching before luting indirect restorations with the self-adhesive cement RelyX Unicem. However, there is no scientific proof that this procedure has any clinical relevance. The aim of this in vivo study was to evaluate the effect of enamel etching on the marginal quality of indirect composite resin restorations (inlay/
Publicado em: 2009
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24. A repercussão periodontal e dentária decorrente da expansão rápida da maxila assistida cirurgicamente: estudo em modelos digitais
The rapid maxillary expansion surgically assisted (RMESA) is one of the procedures of choice for the correction of cross-sectional deficiency in adult patients. This study evaluated the changes produced in upper and lower dental arches of 18 patients, being 6 male and 12 female, with mean age of 23,3 years old undergoing RMESA. For each patient were prepared
Publicado em: 2008