{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T21:18:38Z","timestamp":1778620718084,"version":"3.51.4"},"reference-count":45,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2023,5,10]],"date-time":"2023-05-10T00:00:00Z","timestamp":1683676800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical &amp; Exp Dental Res"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Objective<\/jats:title><jats:p>Free gingival graft (FGG) has been successfully used in the treatment of gingival recessions, as it is the most predictable technique for increasing the attached gingiva. This study aimed to evaluate the effect of liquid platelet\u2010rich fibrin (PRF) with FGG on root surface coverage as root surface biomodification.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>The research sample consisted of 32 surgical sites in 16 patients, they had 2 bilateral recessions in the incisor area of the same dental arch, the sample was divided into 2 groups randomly, and liquid PRF was applied in the first group with the FGG (experimental group), and in the second group the FGG was applied alone (control group). Gingival recession depth (RD) and width of attached gingiva (WAG) were measured before starting, after 1, 3, and 6 months. The percentage of root coverage (RC) was calculated after 6 months. Healing Index (HI) was recorded after 1 week, 2 weeks, and 1 month.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Both groups showed a reduction in gingival RD during all follow\u2010up periods but the difference between both groups was not statistically significant (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05) at 1 and 3 months, whereas there were significant differences at 6 months (<jats:italic>p<\/jats:italic>\u2009=\u20090.001). RC was better in the liquid PRF group than in the control group, but this difference was not statistically significant (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05). The postoperative 7th and 14th days HI scores of the liquid PRF group were significantly better than the control group (<jats:italic>p<\/jats:italic>\u2009=\u20090.000 and <jats:italic>p<\/jats:italic>\u2009=\u20090.004, respectively), whereas there were no significant differences in HI scores between both groups at first month (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>According to the results, the addition of liquid PRF to the root surface with FGG showed further development in terms of decreasing RD, increasing WAG, and accelerated wound\u2010healing.<\/jats:p><\/jats:sec>","DOI":"10.1002\/cre2.747","type":"journal-article","created":{"date-parts":[[2023,5,11]],"date-time":"2023-05-11T05:55:40Z","timestamp":1683784540000},"page":"772-782","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Liquid platelet\u2010rich fibrin in root surface biomodification during gingival recession treatment: Randomized, controlled, split\u2010mouth, clinical trial"],"prefix":"10.1002","volume":"9","author":[{"given":"Wajeha","family":"Albatal","sequence":"first","affiliation":[{"name":"Department of Periodontology, Faculty of Dentistry Damascus University Damascus Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tarek","family":"Qasem","sequence":"additional","affiliation":[{"name":"Department of Periodontology, Faculty of Dentistry Damascus University Damascus Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5498-9991","authenticated-orcid":false,"given":"Yasser Alsayed","family":"Tolibah","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, Faculty of Dentistry Damascus University Damascus Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,5,10]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-019-02934-9"},{"issue":"1","key":"e_1_2_11_3_1","first-page":"105","article-title":"Root biomodification in periodontics \u2013 the changing concepts","volume":"2","author":"Bhushan K.","year":"2016","journal-title":"J Dent Oral Care Med"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tripleo.2005.07.011"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00068-017-0767-9"},{"key":"e_1_2_11_6_1","first-page":"57","volume-title":"Atlas of cosmetic and reconstructive periodontal surgery","author":"Cohen E. 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