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Strict inclusion and exclusion criteria were applied. Functional and esthetic outcomes were assessed for\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200920 pre-molars and\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200920 anterior teeth via comparison of radiographic and digital images applying the novel Functional Implant Prosthodontic Score (FIPS). Krippendorff\u2019s alpha coefficient was calculated to assess inter-rater reliability. Mann\u2013Whitney-U-Test was used to compare the assessed parameters. Level of significance was set to\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      After a mean observation period of 18.4\u2009\u00b1\u20095.7\u00a0months for restorations supported by RAIs and 43.9\u2009\u00b1\u200916.4\u00a0months for restorations after FOE, mean FIPS scores were 9.2\/8.8\u2009\u00b1\u20091.1\/1.2 (RAIs) and 7.4\/7.7\u2009\u00b1\u20091.3\/1.5 (FOE), respectively. Krippendorff\u2019s alpha coefficients did not reveal unacceptable inter-rater reliabilities regarding the investigators and applicability of FIPS. Significant differences were documented when comparing restorations after FOE or supported by RAIs regarding bone loss (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01), presence of papillae (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05) and quality and quantity of mucosa (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.02) in favor of FOE.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Within the main limitations of sample size and the retrospective study design, both concepts seem to provide clinically acceptable results.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical relevance<\/jats:title>\n                    <jats:p>Bone- and tissue-preserving characteristics regarding the concept of FOE are promising. It could be applicable for socket preservation and subsequent conventional implant placements in an adapted workflow.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00784-023-05198-6","type":"journal-article","created":{"date-parts":[[2023,8,15]],"date-time":"2023-08-15T10:02:43Z","timestamp":1692093763000},"page":"5875-5886","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Root-analogue implants compared to forced orthodontic extrusion: a retrospective analysis of clinical, radiological and esthetic outcomes after restoration"],"prefix":"10.1007","volume":"27","author":[{"given":"Mats Wernfried Heinrich","family":"B\u00f6se","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Florian","family":"Beuer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Naumann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benedikt Christopher","family":"Spies","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefan","family":"Neumeyer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Detlef","family":"Hildebrand","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria","family":"Bruhnke","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2023,8,15]]},"reference":[{"key":"5198_CR1","doi-asserted-by":"publisher","first-page":"285","DOI":"10.1016\/S0022-3913(07)60102-4","volume":"98","author":"M Torabinejad","year":"2007","unstructured":"Torabinejad M, Anderson P, Bader J, Brown LJ, Chen LH, Goodacre CJ, Kattadiyil MT, Kutsenko D, Lozada J, Patel R et al (2007) Outcomes of root canal treatment and restoration, implant-supported single crowns, fixed partial dentures, and extraction without replacement: a systematic review. 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