{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T22:47:02Z","timestamp":1781304422369,"version":"3.54.1"},"reference-count":21,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2006,1,23]],"date-time":"2006-01-23T00:00:00Z","timestamp":1137974400000},"content-version":"vor","delay-in-days":22,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2006,1]]},"abstract":"<jats:p> <jats:italic>\n            <jats:styled-content>Purpose:<\/jats:styled-content>\n          <\/jats:italic> When fixing implant\u2010supported fixed partial dentures (FPDs), it is important to achieve passive fit. The objective of the in vivo study presented was to quantify the strain development during the fixation of screw\u2010 and cement\u2010retained FPDs.<\/jats:p><jats:p> <jats:italic>\n            <jats:styled-content>Materials and Methods:<\/jats:styled-content>\n          <\/jats:italic> After informed patient consent had been obtained (Ethics commission Approval No. 2315; FAU Erlangen\u2010Nuremberg, Germany), four groups of five\u2010unit FPDs (five samples per group) were fabricated and investigated in vivo. Group 1: Cementable, repositioning technique impression, burn out plastic coping; Group 2: Screwable, pickup technique impression, burn out plastic coping; Group 3: Screwable, pickup technique impression, cast to gold cylinder; Group 4: Screwable, pickup technique impression, bonded to gold cylinder. Two strain gauges (SG) were attached to the pontics of each bridge (SG\u2010M and SG\u2010D) to measure the strains that occurred during either the cementing or screw\u2010in process. The final values were recorded for analysis.<\/jats:p><jats:p> <jats:italic>\n            <jats:styled-content>Results:<\/jats:styled-content>\n          <\/jats:italic> The mean strain values (\u03bcm\/m) for each SG were: Group 1: SG\u2010M 32 \u03bcm\/m, SG\u2010D: 89 \u03bcm\/m; Group 2: SG\u2010M 302 \u03bcm\/m, SG\u2010D: 197 \u03bcm\/m; Group 3: SG\u2010M 458 \u03bcm\/m, SG\u2010D: 268 \u03bcm\/m; Group 4: SG\u2010M 269 \u03bcm\/m, SG\u2010D: 52 \u03bcm\/m.<\/jats:p><jats:p> <jats:italic>\n            <jats:styled-content>Conclusions:<\/jats:styled-content>\n          <\/jats:italic> Although the bridges were clinically acceptable, none of them revealed a truly passive fit with zero microstrain. In contrast to conventional screw\u2010retained bridges, cement retention seems to result in lower strain levels. Bonding bridge pontics to prefabricated implant components seems to allow both the retrievability of a screw\u2010retained bridge and produce moderate strain values.<\/jats:p>","DOI":"10.1111\/j.1532-849x.2006.00064.x","type":"journal-article","created":{"date-parts":[[2006,1,23]],"date-time":"2006-01-23T09:49:30Z","timestamp":1138009770000},"page":"20-24","source":"Crossref","is-referenced-by-count":25,"title":["In Vivo Stress Behavior in Cemented and Screw\u2010Retained Five\u2010Unit Implant FPDs"],"prefix":"10.1111","volume":"15","author":[{"given":"Matthias","family":"Karl","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas D.","family":"Taylor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manfred G.","family":"Wichmann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siegfried 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