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Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques
OBJECTIVES: The purpose of this study was to compare the accuracy of implant position transfer and surface detail reproduction using two impression techniques and materials. MATERIALS AND METHODS: A metal model with two implants and three grooves of 0.25, 0.50 and 0.75 mm in depth on the flat superi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Tehran University of Medical Sciences
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4888164/ https://www.ncbi.nlm.nih.gov/pubmed/27252761 |
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author | Alikhasi, Marzieh Siadat, Hakimeh Beyabanaki, Elaheh Kharazifard, Mohammad Javad |
author_facet | Alikhasi, Marzieh Siadat, Hakimeh Beyabanaki, Elaheh Kharazifard, Mohammad Javad |
author_sort | Alikhasi, Marzieh |
collection | PubMed |
description | OBJECTIVES: The purpose of this study was to compare the accuracy of implant position transfer and surface detail reproduction using two impression techniques and materials. MATERIALS AND METHODS: A metal model with two implants and three grooves of 0.25, 0.50 and 0.75 mm in depth on the flat superior surface of a die was fabricated. Ten regular-body polyether (PE) and 10 regular-body polyvinyl siloxane (PVS) impressions with square and conical transfer copings using open tray and closed tray techniques were made for each group. Impressions were poured with type IV stone, and linear and angular displacements of the replica heads were evaluated using a coordinate measuring machine (CMM). Also, accurate reproduction of the grooves was evaluated by a video measuring machine (VMM). These measurements were compared with the measurements calculated on the reference model that served as control, and the data were analyzed with two-way ANOVA and t-test at P= 0.05. RESULTS: There was less linear displacement for PVS and less angular displacement for PE in closed-tray technique, and less linear displacement for PE in open tray technique (P<0.001). Also, the open tray technique showed less angular displacement with the use of PVS impression material. Detail reproduction accuracy was the same in all the groups (P>0.05). CONCLUSION: The open tray technique was more accurate using PE, and also both closed tray and open tray techniques had acceptable results with the use of PVS. The choice of impression material and technique made no significant difference in surface detail reproduction. |
format | Online Article Text |
id | pubmed-4888164 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Tehran University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-48881642016-06-01 Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques Alikhasi, Marzieh Siadat, Hakimeh Beyabanaki, Elaheh Kharazifard, Mohammad Javad J Dent (Tehran) Original Article OBJECTIVES: The purpose of this study was to compare the accuracy of implant position transfer and surface detail reproduction using two impression techniques and materials. MATERIALS AND METHODS: A metal model with two implants and three grooves of 0.25, 0.50 and 0.75 mm in depth on the flat superior surface of a die was fabricated. Ten regular-body polyether (PE) and 10 regular-body polyvinyl siloxane (PVS) impressions with square and conical transfer copings using open tray and closed tray techniques were made for each group. Impressions were poured with type IV stone, and linear and angular displacements of the replica heads were evaluated using a coordinate measuring machine (CMM). Also, accurate reproduction of the grooves was evaluated by a video measuring machine (VMM). These measurements were compared with the measurements calculated on the reference model that served as control, and the data were analyzed with two-way ANOVA and t-test at P= 0.05. RESULTS: There was less linear displacement for PVS and less angular displacement for PE in closed-tray technique, and less linear displacement for PE in open tray technique (P<0.001). Also, the open tray technique showed less angular displacement with the use of PVS impression material. Detail reproduction accuracy was the same in all the groups (P>0.05). CONCLUSION: The open tray technique was more accurate using PE, and also both closed tray and open tray techniques had acceptable results with the use of PVS. The choice of impression material and technique made no significant difference in surface detail reproduction. Tehran University of Medical Sciences 2015-10 /pmc/articles/PMC4888164/ /pubmed/27252761 Text en Copyright© Dental Research Center, Tehran University of Medical Sciences This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly. |
spellingShingle | Original Article Alikhasi, Marzieh Siadat, Hakimeh Beyabanaki, Elaheh Kharazifard, Mohammad Javad Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques |
title | Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques |
title_full | Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques |
title_fullStr | Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques |
title_full_unstemmed | Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques |
title_short | Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques |
title_sort | accuracy of implant position transfer and surface detail reproduction with different impression materials and techniques |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4888164/ https://www.ncbi.nlm.nih.gov/pubmed/27252761 |
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