{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,25]],"date-time":"2025-10-25T12:11:34Z","timestamp":1761394294020,"version":"build-2065373602"},"reference-count":47,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2013,12,1]],"date-time":"2013-12-01T00:00:00Z","timestamp":1385856000000},"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":[[2013,12]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> The use of nanoparticles of graft materials may lead to breakthrough applications for periodontal regeneration. However, due to their small particle size, nanoparticles may be eliminated from periodontal defects by phagocytosis. In an attempt to improve nanoparticle retention in periodontal defects, the present in vivo study uses scanning electron microscopy (SEM) to evaluate the potential of micrograft particles of \u03b2\u2010tricalcium phosphate (\u03b2\u2010TCP) to enhance the binding and retention of nanoparticles of hydroxyapatite (nHA) on EDTA\u2010treated and non\u2010treated root surfaces in periodontal defects after 14 days of healing.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Sixty patients having at least two hopeless periodontally affected teeth designated for extraction were randomly divided into four treatment groups (15 patients per group). Patients in group 1 had selected periodontal intrabony defects grafted with nHA of particle size 10 to 100 nm. Patients in group 2 were treated in a similar manner but had the affected roots etched for 2 minutes with a neutral 24% EDTA gel before grafting of the associated vertical defects with nHA. Patients in group 3 had the selected intrabony defects grafted with a composite graft consisting of equal volumes of nHA and \u03b2\u2010TCP (particle size 63 to 150 nm). Patients in group 4 were treated as in group 3 but the affected roots were etched with neutral 24% EDTA as in group 2. For each of the four groups, one tooth was extracted immediately, and the second tooth was extracted after 14 days of healing for SEM evaluation.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> Fourteen days after surgery, all group 1 samples were devoid of any nanoparticles adherent to the root surfaces. Group 2 showed root surface areas 44.7% covered by a single layer of clot\u2010blended grafted particles 14 days following graft application. After 14 days, group 3 samples appeared to retain fibrin strands devoid of grafted particles. Immediately extracted root samples of group 4 had adherent graft particles that covered a considerable area of the root surfaces (88.6%). Grafted particles appeared to cover all samples in a multilayered pattern. After 14 days, the group 4 extracted samples showed multilayered fibrin\u2010covered nano\/micro\u2010sized graft particles adherent to the root surfaces (78.5%).<\/jats:p><jats:p><jats:bold>Conclusion:<\/jats:bold> The use of a composite graft consisting of nHA and microsized \u03b2\u2010TCP after root surface treatment with 24% EDTA may be a suitable method to improve nHA retention in periodontal defects with subsequent graft bioreactivity.<\/jats:p>","DOI":"10.1902\/jop.2013.120701","type":"journal-article","created":{"date-parts":[[2013,3,1]],"date-time":"2013-03-01T13:38:57Z","timestamp":1362145137000},"page":"1730-1739","source":"Crossref","is-referenced-by-count":10,"title":["Mixed Nano\/Micro\u2010Sized Calcium Phosphate Composite and EDTA Root Surface Etching Improve Availability of Graft Material in Intrabony Defects: An In Vivo Scanning Electron Microscopy Evaluation"],"prefix":"10.1002","volume":"84","author":[{"given":"Ahmed Y.","family":"Gamal","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincent J.","family":"Iacono","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,12]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0722.2001.00007.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1993.64.10.934"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1993.64.4.254"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2005.00758.x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1989.60.12.647"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1990.61.5.269"},{"key":"e_1_2_7_8_1","first-page":"458","article-title":"Human histologic evaluation of bioactive ceramic in the treatment of periodontal osseous defects","volume":"20","author":"Nevins ML","year":"2000","journal-title":"Int J Periodontics Restorative Dent"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10856-009-3980-1"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.msec.2013.05.047"},{"key":"e_1_2_7_11_1","first-page":"74","article-title":"Hydroxyapatite nanoparticles: A review of preparation methodologies","volume":"2","author":"Ferraz MP","year":"2004","journal-title":"J Appl Biomater Biomech"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/jbm.b.32794"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jeurceramsoc.2007.12.001"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/jbm.1222"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.msec.2006.05.018"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12034-009-0069-x"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.biomaterials.2003.09.089"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.biomaterials.2003.10.032"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.biomaterials.2005.02.002"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1008973120918"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.biomaterials.2006.05.051"},{"key":"e_1_2_7_22_1","doi-asserted-by":"crossref","unstructured":"DohertySA HileDD WiseDL YingJY SonisST TrantoloDJ. 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