A Simplified Method for Measuring Photomicrographs

Karellos, Nikolaos D.; Minsk, Laura; Winkler, Sheldon; Zoidis, Panagiotis C.

doi:10.1097/00008505-199600530-00003

Cited by 3 publications

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“…associação de imagem microscópica, fotografias e programas específicos de computador 45 ; análises fotoelásticas 55,78 ; avaliação da interface nos três eixos: horizontal, vertical e angular (combinação dos dois anteriores) 7,24 .…”

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Avaliação da Adaptação da Interface Intermediários/Cilindros de Plástico Fundidos em Titânio e Cobalto-Cromo, Antes e Após Soldagem a Laser.

Castilio¹

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The passivity of adaptation for prostheses supported by osseointegrated implants is basic requirement for the long-term sucess of the treatment. The purpose of this study was to evaluate the adaptation of the abutment to titanium or cobalt-chromium one-piece castings before and after laser welding. A total of 30 cylinders machined plastic and 15 cylinders bars were inserted to joint the prosthetics componentes. Each specimen, had three prosthetics components joined. A total of 10 specimens wewr obtained 5 casted with titanium and 5 with cobalt-chromium alloy. The measurements of interfaces were made after and before laser welding with a comparative microscope. The results showed the greatest interface (26,164µm) of the one-piece castings compared to the laser welding specimens (19,943µm). Titanium castings showed best results statistically significant when compared to the cobalt-chromium specimens.

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Section: Discussionunclassified

Avaliação da Adaptação da Interface Intermediários/Cilindros de Plástico Fundidos em Titânio e Cobalto-Cromo, Antes e Após Soldagem a Laser.

Castilio¹

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Avaliação da Adaptação da Interface Intermediário/ Cilindro de Ouro e da Compatibilidade de Diferentes Sistemas de Implantes Odontológicos: Análise Inrta e Entre - Sistemas.

Kano¹

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tê-lo como orientador é antes de tudo uma honra, mas também uma enorme responsabilidade. A liberdade e confiança para elaborar este trabalho foi um desafio constante para não desapontá-lo, meses e meses em busca do ideal, da perfeição! Sua orientação segura e precisa foi fundamental para transpor os inúmeros obstáculos e me manter incentivada pelo trabalho. Pela sua confiança, incentivo e colaboração durante a elaboração deste trabalho.

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Comparison of Implant-Abutment Interface Misfits After Casting and Soldering Procedures

Neves

Elias

Silva-Neto

et al. 2013

Journal of Oral Implantology

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The aim of this study was to compare vertical and horizontal adjustments of castable abutments after conducting casting and soldering procedures. Twelve external hexagonal implants (3.75 × 10 mm) and their UCLA abutments were divided according their manufacturer and abutment type: PUN (plastic UCLA, Neodent), PUC (plastic UCLA, Conexão), PU3i (plastic UCLA, Biomet 3i), and PUTN (plastic UCLA with Tilite milled base, Neodent). Three infrastructures of a fixed partial implant-supported bridge with 3 elements were produced for each group. The measurements of vertical (VM) and horizontal (HM) misfits were obtained via scanning electron microscopy after completion of casting and soldering. The corresponding values were determined to be biomechanically acceptable to the system, and the results were rated as a percentage. Statistical analysis establishes differences between groups by chi-square after procedures, and McNeman's test was applied to analyze the influence of soldering over casting (α ≤ .05). For the values of VM and HM, respectively, when the casting process was complete, it was observed that 83.25% and 100% (PUTN), 33.3% and 27.75% (PUN), 33.3% and 88.8% (PUC), 33.3% and 94.35% (PU3i) represented acceptable values. After completing the requisite soldering, acceptable values were 50% and 94.35% (PUTN), 16.6% and 77.7% (PUN), 38.55% and 77.7% (PUC), and 27.75% and 94.35% (PU3i). Within the limitations of this study, it can be concluded that the premachined abutments presented more acceptable VM values. The HM values were within acceptable limits before and after the soldering procedure for most groups. Further, the soldering procedure resulted in an increase of VM in all groups.

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A Simplified Method for Measuring Photomicrographs

Cited by 3 publications

References 0 publications

Avaliação da Adaptação da Interface Intermediários/Cilindros de Plástico Fundidos em Titânio e Cobalto-Cromo, Antes e Após Soldagem a Laser.

Avaliação da Adaptação da Interface Intermediários/Cilindros de Plástico Fundidos em Titânio e Cobalto-Cromo, Antes e Após Soldagem a Laser.

Avaliação da Adaptação da Interface Intermediário/ Cilindro de Ouro e da Compatibilidade de Diferentes Sistemas de Implantes Odontológicos: Análise Inrta e Entre - Sistemas.

Comparison of Implant-Abutment Interface Misfits After Casting and Soldering Procedures

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