Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques
Identifieur interne : 001470 ( Main/Exploration ); précédent : 001469; suivant : 001471Accuracy of Implant Position Transfer and Surface Detail Reproduction with Different Impression Materials and Techniques
Auteurs : Marzieh Alikhasi [Iran] ; Hakimeh Siadat [Iran] ; Elaheh Beyabanaki [Iran] ; Mohammad Javad Kharazifard [Iran]Source :
- Journal of Dentistry (Tehran, Iran) [ 1735-2150 ] ; 2015.
Abstract
The purpose of this study was to compare the accuracy of implant position transfer and surface detail reproduction using two impression techniques and materials.
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.
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).
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.
Url:
PubMed: 27252761
PubMed Central: 4888164
Affiliations:
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Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Associate Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran</wicri:regionArea><wicri:noRegion>Tehran</wicri:noRegion></affiliation></author><author><name sortKey="Siadat, Hakimeh" sort="Siadat, Hakimeh" uniqKey="Siadat H" first="Hakimeh" last="Siadat">Hakimeh Siadat</name><affiliation wicri:level="1"><nlm:aff id="AFF2">Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences and Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences and Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran</wicri:regionArea><wicri:noRegion>Tehran</wicri:noRegion></affiliation></author><author><name sortKey="Beyabanaki, Elaheh" sort="Beyabanaki, Elaheh" uniqKey="Beyabanaki E" first="Elaheh" last="Beyabanaki">Elaheh Beyabanaki</name><affiliation wicri:level="1"><nlm:aff id="AFF3">Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea><wicri:noRegion>Tehran</wicri:noRegion></affiliation></author><author><name sortKey="Kharazifard, Mohammad Javad" sort="Kharazifard, Mohammad Javad" uniqKey="Kharazifard M" first="Mohammad Javad" last="Kharazifard">Mohammad Javad Kharazifard</name><affiliation wicri:level="1"><nlm:aff id="AFF4">Statistics Consultant, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran</nlm:aff><country xml:lang="fr">Iran</country><wicri:regionArea>Statistics Consultant, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran</wicri:regionArea><wicri:noRegion>Tehran</wicri:noRegion></affiliation></author></analytic><series><title level="j">Journal of Dentistry (Tehran, Iran)</title><idno type="ISSN">1735-2150</idno><idno type="eISSN">2008-2185</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objectives:</title><p>The purpose of this study was to compare the accuracy of implant position transfer and surface detail reproduction using two impression techniques and materials.</p></sec><sec><title>Materials and Methods:</title><p>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.</p></sec><sec><title>Results:</title><p>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).</p></sec><sec><title>Conclusion:</title><p>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.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Kim, S" uniqKey="Kim S">S Kim</name></author><author><name sortKey="Nicholls, Ji" uniqKey="Nicholls J">JI Nicholls</name></author><author><name sortKey="Han, Ch" uniqKey="Han C">CH Han</name></author><author><name sortKey="Lee, Kw" uniqKey="Lee K">KW. Lee</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cho, Gc" uniqKey="Cho G">GC Cho</name></author><author><name sortKey="Chee, Ww" uniqKey="Chee W">WW. 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Alexander</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Iran</li></country></list><tree><country name="Iran"><noRegion><name sortKey="Alikhasi, Marzieh" sort="Alikhasi, Marzieh" uniqKey="Alikhasi M" first="Marzieh" last="Alikhasi">Marzieh Alikhasi</name></noRegion><name sortKey="Beyabanaki, Elaheh" sort="Beyabanaki, Elaheh" uniqKey="Beyabanaki E" first="Elaheh" last="Beyabanaki">Elaheh Beyabanaki</name><name sortKey="Kharazifard, Mohammad Javad" sort="Kharazifard, Mohammad Javad" uniqKey="Kharazifard M" first="Mohammad Javad" last="Kharazifard">Mohammad Javad Kharazifard</name><name sortKey="Siadat, Hakimeh" sort="Siadat, Hakimeh" uniqKey="Siadat H" first="Hakimeh" last="Siadat">Hakimeh Siadat</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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