{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T00:43:53Z","timestamp":1760921033475,"version":"build-2065373602"},"reference-count":0,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[1988,6,1]],"date-time":"1988-06-01T00:00:00Z","timestamp":581126400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100008522","name":"University of Illinois at Chicago","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100008522","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[1988,6]]},"abstract":"<jats:p>T<jats:sc>his study presents the morphological<\/jats:sc> sequence of events in initial blood clot formation on various root surfaces of freshly extracted human teeth. Four teeth with periodontal disease (PD) and three teeth without PD were extracted and the roots sectioned into halves. Those root surfaces with PD had four treatment areas: (1) intact periodontal ligament (PDL), (2) unplaned PD, (3) PD plus planed, (4) PD plus planed plus application of pH 1 citric acid (CA). The roots with no PD had three treatment areas: (1) intact PDL, (2) planed, (3) planed plus CA. Both root halves were reinserted together into the original extraction site. Each root half was then removed at either zero, one, two or four minutes and prepared for scanning electron microscope (SEM) evaluation. SEM observations suggested that plasma proteins were deposited initially on all root surfaces. Platelets and erythrocytes enmeshed in fibrin deposited most rapidly and consistently over the plasma protein layer where intact PDL was present. Similar observations were noted on the planed plus CA surfaces and appeared to occur at an earlier time than on the planed\u2010only surfaces. A constant feature at all time periods was the absence of organized clot formation over the plaque\u2010free zone of the PD root surfaces. By two minutes all surfaces, except the plaque\u2010free zone of the PD area, appeared to have clot lysis occurring. While clot formation appeared to occur more rapidly over surfaces in the non\u2010PD roots, no marked morphological differences in clot formation were observed between PD and non\u2010PD teeth with similar root surface treatments.<\/jats:p>","DOI":"10.1902\/jop.1988.59.6.403","type":"journal-article","created":{"date-parts":[[2012,3,21]],"date-time":"2012-03-21T09:03:53Z","timestamp":1332320633000},"page":"403-411","source":"Crossref","is-referenced-by-count":4,"title":["Scanning Electron Microscopy Observations of Initial Clot Formation on Treated Root Surfaces"],"prefix":"10.1002","volume":"59","author":[{"given":"Arnold D.","family":"Steinberg","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruth","family":"Willey","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[1988,6]]},"container-title":["Journal of Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1988.59.6.403","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T14:20:08Z","timestamp":1760883608000},"score":1,"resource":{"primary":{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/10.1902\/jop.1988.59.6.403"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1988,6]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[1988,6]]}},"alternative-id":["10.1902\/jop.1988.59.6.403"],"URL":"https:\/\/doi.org\/10.1902\/jop.1988.59.6.403","archive":["Portico"],"relation":{},"ISSN":["0022-3492","1943-3670"],"issn-type":[{"type":"print","value":"0022-3492"},{"type":"electronic","value":"1943-3670"}],"subject":[],"published":{"date-parts":[[1988,6]]}}}