{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,12]],"date-time":"2025-07-12T01:20:24Z","timestamp":1752283224707},"reference-count":60,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2006,11,24]],"date-time":"2006-11-24T00:00:00Z","timestamp":1164326400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2007,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Objective: <\/jats:bold> The aim of this <jats:italic>in vitro<\/jats:italic> study was to investigate, on ITI solid abutments, the retention values of single crowns fabricated using an alternative prosthetic solution: secondary cast superstructure luted to an electroformed primary coping.<\/jats:p><jats:p><jats:bold>Materials and methods: <\/jats:bold> Fifty standard 4.1\u2003mm ITI implants and 5.5\u2003mm high ITI machined abutments were assembled and mounted in acrylic resin. Implant\/abutment assemblies were randomly divided into two groups. In the test group, primary galvanic caps were directly fabricated on implant abutments (A.G.C. Micro machine), and a secondary cast noble alloy superstructure was luted on each primary galvanic cap with a resin cement (Nimetic Cem). In the control group, prefabricated burn\u2010out caps were used for casting the metal frameworks. Test and control crowns were cemented using a resin cement (Panavia 21). After storage at 37\u00b0 for 24\u2003h, the specimens were subjected to a pull\u2010out test using an Instron universal testing machine. The load required to dislodge each sample and the respective mode of failure were recorded. Means and standard deviations of loads at failure were analyzed using ANOVA. Statistical significance was set at <jats:italic>P<\/jats:italic>\u22640.05.<\/jats:p><jats:p><jats:bold>Results: <\/jats:bold> The retention values (\u00b1SD) of loads at failure were 67.26 (\u00b116.61) for the test group and 44.03 (\u00b19.45) for the control group. In the test group no separation occurred between the electroformed (galvanic) primary cap and the secondary superstructure.<\/jats:p><jats:p><jats:bold>Conclusions: <\/jats:bold> The results showed that this prosthetic solution is superior on retentive performance than the conventional cast framework. An added clinical advantage of this novel method is its potential to provide a totally passive fit.<\/jats:p><jats:p>Further <jats:italic>in vitro<\/jats:italic> and <jats:italic>in vivo<\/jats:italic> studies involving multiple\u2010unit restorations are needed in order to more generally validate this prosthetic concept.<\/jats:p>","DOI":"10.1111\/j.1600-0501.2006.01299.x","type":"journal-article","created":{"date-parts":[[2006,11,24]],"date-time":"2006-11-24T09:11:15Z","timestamp":1164359475000},"page":"108-113","source":"Crossref","is-referenced-by-count":8,"title":["Cementable implant crowns composed of cast superstructure frameworks luted to electroformed primary copings: an <i>in vitro<\/i> retention study"],"prefix":"10.1111","volume":"18","author":[{"given":"Roberto","family":"Di Felice","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giorgio","family":"Rappelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emanuele","family":"Camaioni","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria","family":"Cattani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jean\u2010Marc","family":"Meyer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Urs 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