{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T21:13:02Z","timestamp":1774127582048,"version":"3.50.1"},"reference-count":43,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2020,7,30]],"date-time":"2020-07-30T00:00:00Z","timestamp":1596067200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Clinic Periodontology"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The aim of this study was to retrospectively assess bone volumes, healed ridge topography and possibility to plan prosthetically guided implants (PGI) at least 6\u00a0months after extraction or exfoliation of first molars as a consequence of terminal periodontitis (EEFMP).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>45 subjects with stage III\u2010IV periodontitis providing 74 extraction sites (maxillary\u00a0=\u00a051 and mandibular\u00a0=\u00a023) were included. The degree of residual periodontal support on each root was assessed by combining periodontal and radiographic data. Digital planning of PGI with 4.8\/4.1\u00a0mm diameter, 8\u00a0mm long, root\u2010form dental implant and need for bone augmentation (BA) were performed using CBCT with a radiographic stent. Possibility of standard implant placement (STANDARD) and need for simultaneous or staged BA were assessed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Planning PGI placement was possible in all cases. For a 4.8\u00a0mm diameter implant, STANDARD was possible in 37.8% of the sites, 33.8% required BA at the time of implant placement, and 28.4% required staged BA before PGI. The use of 4.1\u00a0mm rather than 4.8\u00a0mm diameter implant allowed STANDARD in an additional 8.1% of cases that originally required simultaneous BA\/osteotome sinus floor elevation (OSFE). The level of periodontal bone loss did not predict the complexity of implant placement, but significant differences were observed comparing maxillary with mandibular sites.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>PGI planning at sites with first molar loss due to terminal periodontitis is possible but poses great challenge to rehabilitation, often requiring advanced augmentation procedures and sinus augmentation.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jcpe.13344","type":"journal-article","created":{"date-parts":[[2020,7,11]],"date-time":"2020-07-11T18:42:33Z","timestamp":1594492953000},"page":"1237-1247","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Feasibility and needs for simultaneous or staged bone augmentation to place prosthetically guided dental implants after extraction or exfoliation of first molars due to severe periodontitis"],"prefix":"10.1111","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6612-2866","authenticated-orcid":false,"given":"Melissa Rachel","family":"Fok","sequence":"first","affiliation":[{"name":"Division of Periodontology and Implant dentistry Faculty of Dentistry The University of Hong Kong  Hong Kong China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1917-1988","authenticated-orcid":false,"given":"George","family":"Pelekos","sequence":"additional","affiliation":[{"name":"Division of Periodontology and Implant dentistry Faculty of Dentistry The University of Hong Kong  Hong Kong China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2743-0137","authenticated-orcid":false,"given":"Maurizio S.","family":"Tonetti","sequence":"additional","affiliation":[{"name":"Division of Periodontology and Implant dentistry Faculty of Dentistry The University of Hong Kong  Hong Kong China"},{"name":"European Research Group on Periodontology (ERGOPerio)  Genova Italy"},{"name":"Department of Oral and Maxillo\u2010facial Implantology Shanghai Key Laboratory of Stomatology National Clinical Research Centre for Stomatology Shanghai Ninth People Hospital School of Medicine Shanghai Jiao Tong University  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,7,30]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13057"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/0022034514541127"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2004.75.10.1404"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3913(96)90554-5"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13066"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12219"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/JPER.19-0010"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13241"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/14651858.CD003878.pub4"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2012.110689"},{"key":"e_1_2_9_12_1","first-page":"142","article-title":"Early failures in 4,641 consecutively placed Branemark dental implants: A study from stage 1 surgery to the connection of completed prostheses","volume":"6","author":"Friberg B.","year":"1991","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_9_13_1","first-page":"796","article-title":"Restoration\u2010driven implant placement with restoration\u2010generated site development","volume":"16","author":"Garber D. 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