{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T18:10:44Z","timestamp":1789495844290,"version":"build-2803163510"},"reference-count":29,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2017,7,1]],"date-time":"2017-07-01T00:00:00Z","timestamp":1498867200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[2017,7]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> This study compared 6\u2010month and 3\u2010year outcomes for root coverage (RC) by coronally advanced flap (CAF) procedures in localized gingival recessions.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Two centers, that had participated in a 6\u2010month multinational multicenter randomized clinical trial (RCT), followed up 18 patients with 36 Miller Class I and II defects that had been treated in a split\u2010mouth design with CAF procedures or CAF + xenogeneic collagen matrix (CMX). Percentage of RC, complete root coverage (CRC), width, and thickness of keratinized tissue were assessed by the same masked examiners as after the 6\u2010month RCT.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> There was a high correlation between 6\u2010month and 3\u2010year RC outcomes for both CAF procedures. Mean RC after CAF + CMX amounted to 89.9% after 6 months and 91.7% after 3 years (Pearson\u2019s correlation: 0.91). Corresponding values for CAF were 83.7% versus 82.8% (Pearson\u2019s correlation: 0.94). Likewise, CRC was stable with 61%\/61% for CAF + CMX and 39%\/39% for CAF after 6 months\/3 years, respectively.<\/jats:p><jats:p><jats:bold>Conclusions:<\/jats:bold> In this 3\u2010year follow\u2010up of a subgroup of patients from a previous 6\u2010month RCT, there was a high correlation between the results for RC after 6 months and 3 years, indicating their stability. These data suggest that 6\u2010month outcomes may be useful to predict long\u2010term outcomes in CAF procedures with or without additional use of CMX.<\/jats:p>","DOI":"10.1902\/jop.2017.160767","type":"journal-article","created":{"date-parts":[[2017,3,17]],"date-time":"2017-03-17T09:27:36Z","timestamp":1489742856000},"page":"626-633","source":"Crossref","is-referenced-by-count":55,"title":["Long\u2010Term Stability of Root Coverage by Coronally Advanced Flap 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