{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T23:41:53Z","timestamp":1791848513248,"version":"4.3.4"},"reference-count":15,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2015,11,18]],"date-time":"2015-11-18T00:00:00Z","timestamp":1447804800000},"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":[[2016,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>The aim of this study was to evaluate prospectively the 12\u2010year outcome of implant\u2010supported single\u2010tooth restorations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>Originally 45 self\u2010tapping Astra Tech TiOblast<jats:sup>\u00ae<\/jats:sup> <jats:styled-content style=\"fixed-case\">ST<\/jats:styled-content>\u2010implants were installed by a two\u2010stage protocol in 40 subjects requiring single\u2010tooth prosthetic replacement for a missing tooth. Clinical and radiologic examinations were performed at completion of the prosthetic treatment 4\u20137\u00a0months after implant installation surgery and after 5 and 12\u00a0years in function.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>At 12\u00a0years 31 patients and 35 implants were available for evaluation. The overall failure rate after 12\u00a0years was 10.3% on the subject level and 9.1% on the implant level. The mean bone loss amounted to 0.67\u00a0mm (SD 2.20) on a subject level and 0.47\u00a0mm (1.72) on an implant level. Three subjects (10%) and three implants (8.6%) were diagnosed with peri\u2010implantitis. Five subjects had experienced technical complications; three incidences of loosening of the abutment retention screw during the first 5\u00a0years and two minor porcelain fracture of the crown (two patients) between 5\u2010 and 12\u2010years of follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The findings reported in this 12\u2010year prospective case series suggest that the use of the Astra Tech dental implants may be a valid treatment alternative for single\u2010tooth replacement prostheses.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.12726","type":"journal-article","created":{"date-parts":[[2015,11,18]],"date-time":"2015-11-18T11:11:19Z","timestamp":1447845079000},"page":"1207-1211","source":"Crossref","is-referenced-by-count":20,"title":["Implant\u2010supported single\u2010tooth restorations. 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