Base de dados : MEDLINE
Pesquisa : E06.931.750 [Categoria DeCS]
Referências encontradas : 1301 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 131 ir para página                         

  1 / 1301 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29182217
[Au] Autor:Pispili M; Pissiotis A; Michalakis K
[Ad] Endereço:Aristotle University of Thessaloniki.
[Ti] Título:The Effect of Surface Preparation of Acrylic Teeth.
[So] Source:Eur J Prosthodont Restor Dent;25(4):209-218, 2017 Dec 01.
[Is] ISSN:0965-7452
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:PURPOSE: To investigate whether the chemical bond between acrylic teeth and heat polymerized PMMA can be altered by chemical and/or mechanical treatment. MATERIALS AND METHODS: One hundred fifty acrylic teeth were divided in groups of 10. Their ridge lap surface underwent mechanical and/or chemical treatments: 1) no treatment, 2) air-abrasion with Al2O3 particles, 3) acid etching with phosphoric acid, 4) application of composite resin bonding agent, 5) application of MMA and ethylmethylketone bonding agent, 6) PMMA monomer application. The teeth were then placed in heat polymerized acrylic resin. Each specimen was compressed with a universal testing machine. Descriptive statistics, one-way ANOVA (α=0.05) and Tukey's HSD test were used. A scanning electron microscope (SEM) was also used to study the fracture areas. RESULTS: Statistically significant differences (p⟨0.001) in the bond strength were found. The strongest bond (239.41 N), was noted in the group treated with sandblasting followed by PMMA monomer application. CONCLUSIONS: Mechanical and/or chemical preparations affect significantly the bond strength between the acrylic resin denture teeth and the PMMA denture base. Air abrasion was the most effective treatment, either alone or combined with other treatments.
[Mh] Termos MeSH primário: Resinas Acrílicas
Colagem Dentária
Materiais Dentários
Polimetil Metacrilato
Preparo Prostodôntico do Dente
[Mh] Termos MeSH secundário: Teste de Materiais
Propriedades de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Acrylic Resins); 0 (Dental Materials); 9011-14-7 (Polymethyl Methacrylate)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:171129
[St] Status:MEDLINE
[do] DOI:10.1922/EJPRD_01713Pispili10


  2 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:29235779
[Au] Autor:Kurtzman GM; Agarwal T
[Ti] Título:Laser Troughing to Improve Scanning and Impressions.
[So] Source:Dent Today;36(1):122-5, 2017 Jan.
[Is] ISSN:8750-2186
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Coroas
Técnica de Moldagem Odontológica
Técnicas de Retração Gengival/instrumentação
Lasers Semicondutores
[Mh] Termos MeSH secundário: Planejamento de Prótese Dentária
Falha de Restauração Dentária
Feminino
Seres Humanos
Meia-Idade
Preparo Prostodôntico do Dente
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180115
[Lr] Data última revisão:
180115
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:171214
[St] Status:MEDLINE


  3 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:29235759
[Au] Autor:Lowe RA
[Ti] Título:A One-Visit Option: An Alternative to Traditional Ceramic Restorations.
[So] Source:Dent Today;36(2):100, 102, 104, 2017 Feb.
[Is] ISSN:8750-2186
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Coroas
Prótese Adesiva
Preparo Prostodôntico do Dente/métodos
[Mh] Termos MeSH secundário: Adolescente
Dente Pré-Molar/anormalidades
Planejamento de Prótese Dentária
Seres Humanos
Masculino
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180115
[Lr] Data última revisão:
180115
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:171214
[St] Status:MEDLINE


  4 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:29231681
[Au] Autor:Apa MA
[Ti] Título:A Multidisciplinary Anterior Trauma Case: It Takes a Team!
[So] Source:Dent Today;36(5):72-, 74-6, 2017 May.
[Is] ISSN:8750-2186
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Implantação Dentária Endo-Óssea/métodos
Implantes Dentários
Prótese Dentária Fixada por Implante
Fraturas dos Dentes/etiologia
Fraturas dos Dentes/reabilitação
Preparo Prostodôntico do Dente/métodos
[Mh] Termos MeSH secundário: Adulto
Traumatismos em Atletas/etiologia
Traumatismos em Atletas/reabilitação
Coroas
Seres Humanos
Masculino
Maxila
Equipe de Assistência ao Paciente
Tratamento do Canal Radicular
Extração Dentária
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dental Implants)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180115
[Lr] Data última revisão:
180115
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:171213
[St] Status:MEDLINE


  5 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:28574390
[Au] Autor:Vadachkoria D; Vadachkoria O
[Ad] Endereço:UniDent - Dental Clinic, Training and Research center, Tbilisi, Georgia; Dr. Thomas Lehmann's Dental Clinic, Neumunster, Germany.
[Ti] Título:CLINICAL PROTOCOLS: PREPARATION, IMPRESSION AND BONDING OF ALL-CERAMIC GLASS-BASED DISILICATE LITHIUM CROWNS: REVIEW AND CASE REPORT.
[So] Source:Georgian Med News;(265):94-98, 2017 Apr.
[Is] ISSN:1512-0112
[Cp] País de publicação:Georgia (Republic)
[La] Idioma:eng
[Ab] Resumo:Using contemporary materials and techniques, nowadays we can offer the patients much needed restorations while achieving the desired aesthetics. The maxillary incisors are supremely important in the appearance of a smile. By establishing proper size, contours, vitality, translucency and relationship with the surrounding teeth and soft tissue, we can help create the smile of their dream. In modern dentistry, there are two major recent developments - the dentine bonding and stronger all-ceramic crown systems. Use of glass-based disilicate lithium ceramic crowns in combination with resin cements provides more desirable aesthetic solution than traditional porcelain-fused-to-metal (PFM) crowns. However, use of these materials is extremely technique sensitive. They require additional marginal precision of tooth preparation and bonding with resin cement. Consequently, protocols of tooth preparation and bonding are essential for long-term success. The presented article describes the preparation, impression and bonding guidelines aided by case presentation. According to the discussed protocols, dentists who take advantage of benefits of these contemporary materials and technologies will achieve more durable and reliable bonding with improved aesthetics.
[Mh] Termos MeSH primário: Coroas
Porcelana Dentária
Compostos de Lítio
Silicatos
[Mh] Termos MeSH secundário: Adulto
Protocolos Clínicos
Colagem Dentária
Técnica de Moldagem Odontológica
Restauração Dentária Permanente
Feminino
Seres Humanos
Preparo Prostodôntico do Dente
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Lithium Compounds); 0 (Silicates); 12001-21-7 (Dental Porcelain)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171110
[Lr] Data última revisão:
171110
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170603
[St] Status:MEDLINE


  6 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28482440
[Au] Autor:Yuan FS; Wang Y; Zhang YP; Sun YC; Wang DX; Lyu PJ
[Ad] Endereço:Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health &
[Ti] Título:[Study on the appropriate parameters of automatic full crown tooth preparation for dental tooth preparation robot].
[So] Source:Zhonghua Kou Qiang Yi Xue Za Zhi;52(5):270-273, 2017 May 09.
[Is] ISSN:1002-0098
[Cp] País de publicação:China
[La] Idioma:chi
[Ab] Resumo:To further study the most suitable parameters for automatic full crown preparation using oral clinical micro robot. Its purpose is to improve the quality of automated tooth preparing for the system and to lay the foundation for clinical application. Twenty selected artificial resin teeth were used as sample teeth. The micro robot automatic tooth preparation system was used in dental clinic to control the picosecond laser beam to complete two dimensional cutting on the resin tooth sample according to the motion planning path. Using the laser scanning measuring microscope, each layer of cutting depth values was obtained and the average value was calculated. The monolayer cutting depth was determined. The three-dimensional (3D) data of the target resin teeth was obtained using internal scanner, and the CAD data of full-crown tooth preparation was designed by CAD self-develged software. According to the depth of the single layer, 11 complete resin teeth in phantom head were automatically prepared by the robot controlling the laser focused spot in accordance with the layer-cutting way. And the accuracy of resin tooth preparation was evaluated with the software. Using the same method, monolayer cutting depth parameter for cutting dental hard tissue was obtained. Then 15 extracted mandibular and maxillary first molars went through automatic full crown tooth preparation. And the 3D data of tooth preparations were obtained with intra oral scanner. The software was used to evaluate the accuracy of tooth preparation. The results indicated that the single cutting depth of cutting resin teeth and teeth by picosecond laser were (60.0±2.6) and (45.0±3.6) µm, respectively. Using the tooth preparation robot, 11 artificial resin teeth and 15 complete natural teeth were automatically prepared, and the average time were (13.0±0.7), (17.0±1.8) min respectively. Through software evaluation, the average preparation depth of the occlusal surface of 11 resin teeth was approximately (2.089±0.026) mm, the error was about (0.089±0.026) mm; the average convergence angle was about 6.56°±0.30°, the error was about 0.56°±0.30°. Compared with the target preparation shape, the average shape error of the 11 resin tooth preparations was about 0.02-0.11 mm. And the average preparation depth of the occlusal surface of 15 natural teeth was approximately (2.097±0.022) mm, the error was about (0.097±0.022) mm; the average convergence angle was about 6.98°±0.35°, the error was about 0.98°±0.35°. Compared with the target preparation shape, the average shape error of the 15 natural tooth preparations was about 0.05-0.17 mm. The experimental results indicate that the automatic tooth preparation for resin teeth and the teeth were completed according to the specific parameters of the single cutting depth by the micro robot controlling picosecond laser respectively, its preparation accuracy met the clinical needs. And the suitability of the parameter was confirmed.
[Mh] Termos MeSH primário: Coroas
Lasers
Robótica
Preparo Prostodôntico do Dente/normas
[Mh] Termos MeSH secundário: Seres Humanos
Dente Molar
Dente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170830
[Lr] Data última revisão:
170830
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:170509
[St] Status:MEDLINE
[do] DOI:10.3760/cma.j.issn.1002-0098.2017.05.002


  7 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28085977
[Au] Autor:Shetty R; Bhat AN; Mehta D; Finger WJ
[Ti] Título:Effect of a Calcium Phosphate Desensitizer on Pre- and Postcementation Sensitivity of Teeth Prepared for Full-Coverage Restorations: A Randomized, Placebo-Controlled Clinical Study.
[So] Source:Int J Prosthodont;30(1):38-42, 2017 Jan/Feb.
[Is] ISSN:0893-2174
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PURPOSE: The aim of this study was to investigate the effect of Teethmate Desensitizer (TD), an aqueous slurry of calcium phosphates, on the pre- and postcementation sensitivity of contralateral premolars prepared for full-coverage restorations. MATERIALS AND METHODS: In this clinical study, using a split-mouth design, 20 patients were allocated and two contralateral vital premolars per patient were randomly assigned to treatment with TD and placebo (PLA; distilled water). One day after preparation and temporization, sensitivity (PRE) upon air blast (AB) and probe scratch (PS) was determined using a 10-cm-long visual analog scale (VAS). The trial was double-blinded; neither the patient nor the investigator knew the treatment performed. Sensitivity was assessed immediately after treatment, before seating the final crowns after 1 week, and 1 month after cementation. Statistical data analysis was performed with one-way analysis of variance followed by Tukey post hoc test and two-sided paired t test. Statistical significance was determined at α < .05. RESULTS: VAS scores upon stimulation with AB and PS were significantly lower at POST and 1 week, and with AB after 1 month. TD-treated teeth showed significantly less sensitivity than PLA. At the postcementation recall, TD and PLA were not significantly different and the average pain scores were almost 0. CONCLUSION: Treatment of teeth prepared for full crown restorations with TD can significantly reduce pre- and postcementation sensitivity.
[Mh] Termos MeSH primário: Fosfatos de Cálcio/uso terapêutico
Coroas
Sensibilidade da Dentina/tratamento farmacológico
Prótese Parcial Fixa
Preparo Prostodôntico do Dente/métodos
[Mh] Termos MeSH secundário: Adulto
Dente Pré-Molar
Cimentação
Estudos Cross-Over
Método Duplo-Cego
Feminino
Seres Humanos
Masculino
Meia-Idade
Preparo Prostodôntico do Dente/efeitos adversos
Escala Visual Analógica
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
0 (Calcium Phosphates)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170322
[Lr] Data última revisão:
170322
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:170114
[St] Status:MEDLINE
[do] DOI:10.11607/ijp.4885


  8 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27977819
[Au] Autor:Paniz G; Nart J; Gobbato L; Mazzocco F; Stellini E; De Simone G; Bressan E
[Ti] Título:Clinical Periodontal Response to Anterior All-Ceramic Crowns with Either Chamfer or Feather-edge Subgingival Tooth Preparations: Six-Month Results and Patient Perception.
[So] Source:Int J Periodontics Restorative Dent;37(1):61-68, 2017 Jan/Feb.
[Is] ISSN:1945-3388
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Subgingival margins are often required for biologic, mechanical, or esthetic reasons. Several investigations have demonstrated that their use is associated with adverse periodontal reactions, such as inflammation or recession. The purpose of this prospective randomized clinical study was to determine if two different subgingival margin designs influence the periodontal parameters and patient perception. Deep chamfer and feather-edge preparations were compared on 58 patients with 6 months follow-up. Statistically significant differences were present for bleeding on probing, gingival recession, and patient satisfaction. Feather-edge preparation was associated with increased bleeding on probing and deep chamfer with increased recession; improved patient comfort was registered with chamfer margin design. Subgingival margins are technique sensitive, especially when feather-edge design is selected. This margin design may facilitate soft tissue stability but can expose the patient to an increased risk of gingival inflammation.
[Mh] Termos MeSH primário: Cerâmica
Coroas
Adaptação Marginal Dentária
Retração Gengival/etiologia
Preparo Prostodôntico do Dente/métodos
[Mh] Termos MeSH secundário: Feminino
Seres Humanos
Masculino
Meia-Idade
Satisfação do Paciente
Índice Periodontal
Estudos Prospectivos
Propriedades de Superfície
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:161216
[St] Status:MEDLINE
[do] DOI:10.11607/prd.2765


  9 / 1301 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27338149
[Au] Autor:Tran J; Dudley J; Richards L
[Ad] Endereço:School of Dentistry, Faculty of Health Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
[Ti] Título:All-ceramic crown preparations: An alternative technique.
[So] Source:Aust Dent J;62(1):65-70, 2017 Mar.
[Is] ISSN:1834-7819
[Cp] País de publicação:Australia
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The aim of this study was to compare the crown preparation dimensions produced from two different techniques of preparation for posterior all-ceramic crowns. METHODS: Twenty-four fourth year dental students undertook a course of advanced simulation training involving education in an alternative technique of preparation for a 36 all-ceramic crown. Crown preparations performed using the traditional technique were compared with an alternative technique for total occlusal convergence (TOC) and reduction difference (RD) using digital scanning and comparative software. RESULTS: Groups that spent the most time performing the alternative technique produced crown preparations with significantly lower buccolingual (BL) TOC. The training resulted in crown preparations that were closer to ideal TOC and RD measurements. CONCLUSIONS: The alternative technique of crown preparation for a posterior all-ceramic crown showed initial promise in creating a less buccolingually tapered and more ideally occlusally reduced crown preparation.
[Mh] Termos MeSH primário: Competência Clínica
Coroas
Porcelana Dentária
Preparo Prostodôntico do Dente
[Mh] Termos MeSH secundário: Simulação por Computador
Currículo
Planejamento de Prótese Dentária
Educação em Odontologia
Seres Humanos
Avaliação de Programas e Projetos de Saúde
Estudantes de Odontologia
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
12001-21-7 (Dental Porcelain)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171011
[Lr] Data última revisão:
171011
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:160625
[St] Status:MEDLINE
[do] DOI:10.1111/adj.12433


  10 / 1301 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
[PMID]:27738633
[Au] Autor:Hellak A; Ebeling J; Schauseil M; Stein S; Roggendorf M; Korbmacher-Steiner H
[Ad] Endereço:Department of Orthodontics, Giessen and Marburg University Hospital, Marburg Campus, Marburg, Germany.
[Ti] Título:Shear Bond Strength of Three Orthodontic Bonding Systems on Enamel and Restorative Materials.
[So] Source:Biomed Res Int;2016:6307107, 2016.
[Is] ISSN:2314-6141
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The aim of this in vitro study was to determine the shear bond strength (SBS) and adhesive remnant index (ARI) score of two self-etching no-mix adhesives (iBond and Scotchbond ) on different prosthetic surfaces and enamel, in comparison with the commonly used total etch system Transbond XT . . A total of 270 surfaces (1 enamel and 8 restorative surfaces, = 30) were randomly divided into three adhesive groups. In group 1 (control) brackets were bonded with Transbond XT primer. In the experimental groups iBond adhesive (group 2) and Scotchbond Universal adhesive (group 3) were used. The SBS was measured using a Zwicki 1120 testing machine. The ARI and SBS were compared statistically using the Kruskal-Wallis test ( ≤ 0.05). . Significant differences in SBS and ARI were found between the control group and experimental groups. . Transbond XT showed the highest SBS on human enamel. Scotchbond Universal on average provides the best bonding on all other types of surface (metal, composite, and porcelain), with no need for additional primers. It might therefore be helpful for simplifying bonding in orthodontic procedures on restorative materials in patients. If metal brackets have to be bonded to a metal surface, the use of a dual-curing resin is recommended.
[Mh] Termos MeSH primário: Osso e Ossos/fisiologia
Esmalte Dentário/fisiologia
Resistência ao Cisalhamento/fisiologia
[Mh] Termos MeSH secundário: Osso e Ossos/efeitos dos fármacos
Cimentos Dentários/farmacologia
Esmalte Dentário/efeitos dos fármacos
Seres Humanos
Metais/administração & dosagem
Braquetes Ortodônticos
Cimentos de Resina/farmacologia
Resistência ao Cisalhamento/efeitos dos fármacos
Propriedades de Superfície
Dente/efeitos dos fármacos
Dente/fisiologia
Preparo Prostodôntico do Dente/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dental Cements); 0 (Metals); 0 (Resin Cements)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170224
[Lr] Data última revisão:
170224
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161015
[St] Status:MEDLINE



página 1 de 131 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde