{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T10:08:36Z","timestamp":1780481316980,"version":"3.54.1"},"reference-count":0,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[1999,7,1]],"date-time":"1999-07-01T00:00:00Z","timestamp":930787200000},"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":[[1999,7]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> Different treatment modalities have been described for root coverage in cases of gingival recession. The aim of the present study was to evaluate the postsurgical outcome of 2 modes of surgical root coverage of predominantly shallow, Class I or II, gingival recessions.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Fourteen buccal recession sites in 13 patients were treated with free connective tissue grafts employing a modified envelope technique; 14 sites in 9 patients were subjected to a coronally repositioned flap in combination with a bioabsorbable membrane. Immediately before surgery as well as after 6 months, gingival dimensions, i.e., width and thickness, as well as root coverage and attachment gain, were assessed to the next 0.1 mm employing a caliper, an ultrasonic device, and a pressure calibrated, computerized periodontal probe.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> At the outset, mean recession depths amounted to 2.48 \u00b1 1.06 and 3.00 \u00b1 1.95 mm for patients treated with a free connective tissue graft and a bioabsorbable membrane, respectively. With the former technique, 80 \u00b1 24% root surface could be covered after 6 months, while the latter resulted in only 45 \u00b1 40% coverage. The contrast in reduction of recession width was even more pronounced (77 \u00b1 35% versus 18 \u00b1 37%). In both groups, an increase of gingival thickness of 0.6 to 0.7 mm was noticed.<\/jats:p><jats:p><jats:bold>Conclusions:<\/jats:bold> Small recessions may be covered more predictably with the modified envelope technique. <jats:italic>J Periodontol 1999;70:743\u2010751.<\/jats:italic><\/jats:p>","DOI":"10.1902\/jop.1999.70.7.743","type":"journal-article","created":{"date-parts":[[2005,2,2]],"date-time":"2005-02-02T06:08:13Z","timestamp":1107324493000},"page":"743-751","source":"Crossref","is-referenced-by-count":43,"title":["Root Coverage Employing an Envelope Technique or Guided Tissue Regeneration With a Bioabsorbable Membrane"],"prefix":"10.1002","volume":"70","author":[{"given":"Hans\u2010Peter","family":"M\u00fcller","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marianne","family":"Stahl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Eger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[1999,7]]},"container-title":["Journal of Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1999.70.7.743","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T12:05:57Z","timestamp":1760875557000},"score":1,"resource":{"primary":{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/10.1902\/jop.1999.70.7.743"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,7]]},"references-count":0,"journal-issue":{"issue":"7","published-print":{"date-parts":[[1999,7]]}},"alternative-id":["10.1902\/jop.1999.70.7.743"],"URL":"https:\/\/doi.org\/10.1902\/jop.1999.70.7.743","archive":["Portico"],"relation":{},"ISSN":["0022-3492","1943-3670"],"issn-type":[{"value":"0022-3492","type":"print"},{"value":"1943-3670","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,7]]}}}