Accuracy of a proposed implant impression technique using abutments and metal framework
This study compared the accuracy of an abutment-framework (A-F) taken with open tray impression technique combining cementon crown abutments, a metal framework and resin cement to closed tray and resin-splinted open tray impression techniques for the 3-implant definitive casts. The effect of angulat...
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Published in | The journal of advanced prosthodontics Vol. 2; no. 1; pp. 25 - 31 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Korea (South)
The Korean Academy of Prosthodontics
01.03.2010
대한치과보철학회 |
Subjects | |
Online Access | Get full text |
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Summary: | This study compared the accuracy of an abutment-framework (A-F) taken with open tray impression technique combining cementon crown abutments, a metal framework and resin cement to closed tray and resin-splinted open tray impression techniques for the 3-implant definitive casts. The effect of angulation on the accuracy of these 3 techniques was also evaluated.
Three definitive casts, each with 3 linearly positioned implant analogs at relative angulations 0, 30, and 40 degrees, were fabricated with passively fitted corresponding reference frameworks. Ten impressions were made and poured, using each of the 3 techniques on each of the 3 definitive casts. To record the vertical gap between reference frameworks and analogs in duplicate casts, a light microscope with image processing was used. Data were analyzed by two-way analysis of variance and the Tukey test.
The open tray techniques showed significantly smaller vertical gaps compare to closed tray technique (P < .05). The closed tray and the resin-splinted open tray technique showed significantly different vertical gaps according to the angulation of implant (P < .05), but the A-F impression technique did not (P > .05).
The accuracy of the A-F impression technique was superior to that of conventional techniques, and was not affected by the angulation of the implants. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 https://doi.org/10.4047/jap.2010.2.1.25 G704-SER000000661.2010.2.1.005 |
ISSN: | 2005-7806 2005-7814 |
DOI: | 10.4047/jap.2010.2.1.25 |