{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T03:30:27Z","timestamp":1787023827030,"version":"build-2736575974"},"reference-count":35,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2008,6,1]],"date-time":"2008-06-01T00:00:00Z","timestamp":1212278400000},"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":[[2008,6]]},"abstract":"<jats:p>\n                    <jats:bold>Background:<\/jats:bold>\n                    The primary aim of this randomized, controlled, masked clinical trial was to compare the percentage of root coverage obtained with a coronally positioned flap plus acellular dermal matrix (ADM) allograft to that of a tunnel technique plus ADM 4 months post\u2010surgically.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Methods:<\/jats:bold>\n                    Twenty\u2010four subjects with one site with \u22653 mm Miller Class I or II recession were treated and followed for 4 months. Twelve patients received a coronally positioned flap plus ADM and were considered the positive control group (CPF). The test group consisted of 12 subjects treated with a coronally positioned tunnel technique plus ADM (TUN). Subjects were randomly selected by a coin toss to receive the test or control treatment.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Results:<\/jats:bold>\n                    The mean facial recession defect at the initial examination for the TUN group was 3.1 \u00b1 0.3 mm; this was reduced to 0.7 \u00b1 0.9 mm at the 4\u2010month examination for a gain of 2.4 \u00b1 1.0 mm or 78% defect coverage (\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.05). The mean facial recession defect at the initial examination for the CPF group was 3.4 \u00b1 0.8 mm; it was reduced to 0.2 \u00b1 0.3 mm at the 4\u2010month examination for a gain of 3.2 \u00b1 0.9 mm or 95% defect coverage (\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.05). There was no statistically significant difference between groups (\n                    <jats:italic>P<\/jats:italic>\n                    &gt;0.05).\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Conclusions:<\/jats:bold>\n                    The coronally positioned flap plus ADM produced a defect coverage of 95%, whereas the tunnel technique plus ADM produced only 78% coverage. This difference was considered clinically significant but was not statistically significant.\n                  <\/jats:p>","DOI":"10.1902\/jop.2008.070546","type":"journal-article","created":{"date-parts":[[2008,6,5]],"date-time":"2008-06-05T08:53:34Z","timestamp":1212656014000},"page":"1022-1030","source":"Crossref","is-referenced-by-count":40,"title":["Root Coverage Using Acellular Dermal Matrix and Comparing a Coronally Positioned Tunnel to a Coronally Positioned Flap Approach"],"prefix":"10.1002","volume":"79","author":[{"given":"Georgios","family":"Papageorgakopoulos","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henry","family":"Greenwell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Margaret","family":"Hill","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ricardo","family":"Vidal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James P.","family":"Scheetz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2008,6]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"216","article-title":"Use of the supraperiosteal envelope in soft tissue grafting for root coverage. 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