{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T13:23:21Z","timestamp":1780493001055,"version":"3.54.1"},"reference-count":25,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2011,10,3]],"date-time":"2011-10-03T00:00:00Z","timestamp":1317600000000},"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":[[2013,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives:<\/jats:title><jats:p>The purpose of this animal study was to radiologically measure the influence of abutment disconnection on bone resorption and to compare this influence on platform\u2010switched vs. non\u2010platform\u2010switched implants.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods:<\/jats:title><jats:p>The study design included extraction of all mandibular premolars in five canines . After 2 months, six implants were placed in each dog. Four of them were platform\u2010switched (<jats:styled-content style=\"fixed-case\">PS<\/jats:styled-content>) implants and two were non\u2010platform\u2010switched (<jats:styled-content style=\"fixed-case\">NPS<\/jats:styled-content>) implants. Some or all of the abutments connected to the implants were disconnected at pre\u2010ordained post\u2010surgical intervals. Radiographs were taken at the time of implant placement and at every handling. The values for mesial (horizontal and vertical) and distal (horizontal and vertical) bone resorption were taken and compared for each implant at every abutment dis\/reconnection.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p>The average vertical bone resorption around <jats:styled-content style=\"fixed-case\">NPS<\/jats:styled-content> implants after four dis\/reconnections was 1.09\u00a0mm (<jats:styled-content style=\"fixed-case\">SD<\/jats:styled-content> 0.25\u00a0mm), and the average horizontal bone resorption was 0.98\u00a0mm (<jats:styled-content style=\"fixed-case\">SD<\/jats:styled-content> 0.27\u00a0mm). The average vertical bone resorption around <jats:styled-content style=\"fixed-case\">PS<\/jats:styled-content> implants after four dis\/reconnections was 0.24\u00a0mm, (<jats:styled-content style=\"fixed-case\">SD<\/jats:styled-content> 0.08\u00a0mm) and the average horizontal bone resorption was 0.24\u00a0mm (<jats:styled-content style=\"fixed-case\">SD<\/jats:styled-content> 0.13\u00a0mm). The difference of the average horizontal and vertical bone resorption around <jats:styled-content style=\"fixed-case\">NPS<\/jats:styled-content> (site D) and <jats:styled-content style=\"fixed-case\">PS<\/jats:styled-content> (site A) implants was statically significant (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.05). The average mesial and distal bone resorption values around <jats:styled-content style=\"fixed-case\">PS<\/jats:styled-content> (site A) implant adjacent to a tooth were compared, and statically significant differences were found (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions:<\/jats:title><jats:p>Implants with a <jats:styled-content style=\"fixed-case\">PS<\/jats:styled-content> design show less peri\u2010implant bone resorption during the healing process and as their abutments are disconnected, than do comparably dis\/reconnected <jats:styled-content style=\"fixed-case\">NPS<\/jats:styled-content> implants. The location of the <jats:styled-content style=\"fixed-case\">PS<\/jats:styled-content> implant next to a tooth may decrease radiographically visible peri\u2010implant bone resorption significantly.<\/jats:p><\/jats:sec>","DOI":"10.1111\/j.1600-0501.2011.02317.x","type":"journal-article","created":{"date-parts":[[2011,10,3]],"date-time":"2011-10-03T09:13:07Z","timestamp":1317633187000},"page":"305-311","source":"Crossref","is-referenced-by-count":46,"title":["The effect of abutment dis\/reconnections on peri\u2010implant bone resorption: A radiologic study of platform\u2010switched and non\u2010platform\u2010switched implants placed in animals"],"prefix":"10.1111","volume":"24","author":[{"given":"Xavier","family":"Rodr\u00edguez","sequence":"first","affiliation":[{"name":"Private Practice Barcelona\/Madrid Spain"},{"name":"Implantology Department European University of Madrid (UEM) Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xavier","family":"Vela","sequence":"additional","affiliation":[{"name":"Private Practice Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V\u00edctor","family":"M\u00e9ndez","sequence":"additional","affiliation":[{"name":"Private Practice Barcelona\/Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maribel","family":"Segal\u00e0","sequence":"additional","affiliation":[{"name":"Private Practice Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jose L.","family":"Calvo\u2010Guirado","sequence":"additional","affiliation":[{"name":"General and Implant Dentistry University of Murcia (UM) Murcia Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dennis P.","family":"Tarnow","sequence":"additional","affiliation":[{"name":"Implant Education Columbia University College of Dental Medicine New York NY 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