Cargando…

EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS

OBJECTIVES: This study assessed the effect of cast rectifiers on the marginal misfit of cast UCLA abutments compared to premachined UCLA abutments. The influence of casting and porcelain baking on the marginal misfit of these components was also investigated. METHODS: Two groups were analyzed: test...

Descripción completa

Detalles Bibliográficos
Autores principales: Jaime, Ana Paula Gumieiro, de Vasconcellos, Diego Klee, Mesquita, Alfredo Mikail Melo, Kimpara, Estevão Tomomitsu, Bottino, Marco Antonio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade de Odontologia de Bauru da Universidade de São Paulo 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327462/
https://www.ncbi.nlm.nih.gov/pubmed/19089125
http://dx.doi.org/10.1590/S1678-77572007000300004
_version_ 1782357084917989376
author Jaime, Ana Paula Gumieiro
de Vasconcellos, Diego Klee
Mesquita, Alfredo Mikail Melo
Kimpara, Estevão Tomomitsu
Bottino, Marco Antonio
author_facet Jaime, Ana Paula Gumieiro
de Vasconcellos, Diego Klee
Mesquita, Alfredo Mikail Melo
Kimpara, Estevão Tomomitsu
Bottino, Marco Antonio
author_sort Jaime, Ana Paula Gumieiro
collection PubMed
description OBJECTIVES: This study assessed the effect of cast rectifiers on the marginal misfit of cast UCLA abutments compared to premachined UCLA abutments. The influence of casting and porcelain baking on the marginal misfit of these components was also investigated. METHODS: Two groups were analyzed: test group – 10 cast UCLA abutments, finished with cast rectifier and submitted to ceramic application; control group – 10 premachined UCLA abutments, cast with noble metal alloy and submitted to ceramic application. Vertical misfit measurements were performed under light microscopy. In the test group, measurements were performed before and after the use of cast rectifiers, and after ceramic application. In the control group, measurements were performed before and after casting, and after ceramic application. Data were submitted to statistical analysis by ANOVA and Tukey's test (α= 5%). RESULTS: The use of cast rectifiers significantly reduced the marginal misfit of cast UCLA abutments (from 25.68μm to 14.83μm; p<0.05). After ceramic application, the rectified cylinders presented misfit values (16.18μm) similar to those of premachined components (14.3 μm). Casting of the premachined UCLA abutments altered the marginal misfit of these components (from 9.63 μm to 14.6 μm; p<0.05). There were no significant changes after porcelain baking, in both groups. CONCLUSION: The use of cast rectifiers reduced the vertical misfit of cast UCLA abutments. Even with carefully performed laboratory steps, changes at the implant interface of premachined UCLA abutments occurred. Ceramic application did not alter the marginal misfit values of UCLA abutments.
format Online
Article
Text
id pubmed-4327462
institution National Center for Biotechnology Information
language English
publishDate 2007
publisher Faculdade de Odontologia de Bauru da Universidade de São Paulo
record_format MEDLINE/PubMed
spelling pubmed-43274622015-03-01 EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS Jaime, Ana Paula Gumieiro de Vasconcellos, Diego Klee Mesquita, Alfredo Mikail Melo Kimpara, Estevão Tomomitsu Bottino, Marco Antonio J Appl Oral Sci Original Article OBJECTIVES: This study assessed the effect of cast rectifiers on the marginal misfit of cast UCLA abutments compared to premachined UCLA abutments. The influence of casting and porcelain baking on the marginal misfit of these components was also investigated. METHODS: Two groups were analyzed: test group – 10 cast UCLA abutments, finished with cast rectifier and submitted to ceramic application; control group – 10 premachined UCLA abutments, cast with noble metal alloy and submitted to ceramic application. Vertical misfit measurements were performed under light microscopy. In the test group, measurements were performed before and after the use of cast rectifiers, and after ceramic application. In the control group, measurements were performed before and after casting, and after ceramic application. Data were submitted to statistical analysis by ANOVA and Tukey's test (α= 5%). RESULTS: The use of cast rectifiers significantly reduced the marginal misfit of cast UCLA abutments (from 25.68μm to 14.83μm; p<0.05). After ceramic application, the rectified cylinders presented misfit values (16.18μm) similar to those of premachined components (14.3 μm). Casting of the premachined UCLA abutments altered the marginal misfit of these components (from 9.63 μm to 14.6 μm; p<0.05). There were no significant changes after porcelain baking, in both groups. CONCLUSION: The use of cast rectifiers reduced the vertical misfit of cast UCLA abutments. Even with carefully performed laboratory steps, changes at the implant interface of premachined UCLA abutments occurred. Ceramic application did not alter the marginal misfit values of UCLA abutments. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2007-06 /pmc/articles/PMC4327462/ /pubmed/19089125 http://dx.doi.org/10.1590/S1678-77572007000300004 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Jaime, Ana Paula Gumieiro
de Vasconcellos, Diego Klee
Mesquita, Alfredo Mikail Melo
Kimpara, Estevão Tomomitsu
Bottino, Marco Antonio
EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS
title EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS
title_full EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS
title_fullStr EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS
title_full_unstemmed EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS
title_short EFFECT OF CAST RECTIFIERS ON THE MARGINAL FIT OF UCLA ABUTMENTS
title_sort effect of cast rectifiers on the marginal fit of ucla abutments
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327462/
https://www.ncbi.nlm.nih.gov/pubmed/19089125
http://dx.doi.org/10.1590/S1678-77572007000300004
work_keys_str_mv AT jaimeanapaulagumieiro effectofcastrectifiersonthemarginalfitofuclaabutments
AT devasconcellosdiegoklee effectofcastrectifiersonthemarginalfitofuclaabutments
AT mesquitaalfredomikailmelo effectofcastrectifiersonthemarginalfitofuclaabutments
AT kimparaestevaotomomitsu effectofcastrectifiersonthemarginalfitofuclaabutments
AT bottinomarcoantonio effectofcastrectifiersonthemarginalfitofuclaabutments