{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,15]],"date-time":"2026-02-15T15:25:59Z","timestamp":1771169159435,"version":"3.50.1"},"reference-count":26,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2020,6,17]],"date-time":"2020-06-17T00:00:00Z","timestamp":1592352000000},"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":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2020,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To compare the stability of apically tapered and straight (non\u2010tapered cylindrical) implants at the time of immediate placement and to histologically evaluate the healing outcomes after 6\u00a0weeks.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>The second maxillary incisors were extracted bilaterally in nine dogs. After randomization, apically tapered and straight implants with a 3.3\u00a0mm shoulder diameter were inserted into the extraction sockets. The implant stability quotient (ISQ) of the implants was recorded after placement. Peri\u2010implant defects on the buccal aspect were filled with deproteinized bovine bone mineral and covered with resorbable type I\/III porcine collagen matrix. After 6\u00a0weeks of healing, sections were prepared for histological and morphometric analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All implant sites healed uneventfully. The apically tapered implants had significantly higher ISQ values compared to straight implants at placement (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.009). The histomorphometric outcomes 6\u00a0weeks following implant placement in both experimental groups were similar, except in the apico\u2010palatal region. Apically tapered implants demonstrated significantly less percentage bone\u2010to\u2010implant contact (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.035) in the apico\u2010palatal region. At both implant types, substantial corono\u2010apical resorption of the buccal bone wall was noted in the coronal 2\u00a0mm of the implant.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Apically tapered implants had significantly higher ISQ values at immediate placement compared to straight implants. The healing outcomes and remodelling of the buccal bone wall were similar for both implant designs. In the apico\u2010palatal region, there was less %BIC at the implant surface at apically tapered implants compared to straight implants.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.13618","type":"journal-article","created":{"date-parts":[[2020,5,26]],"date-time":"2020-05-26T22:46:45Z","timestamp":1590533205000},"page":"705-714","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Primary stability and healing outcomes of apically tapered and straight implants placed into fresh extraction sockets. A pre\u2010clinical in vivo study"],"prefix":"10.1111","volume":"31","author":[{"given":"Rebecca","family":"Ellis","sequence":"first","affiliation":[{"name":"Periodontics Melbourne Dental School University of Melbourne Parkville VIC Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen","family":"Chen","sequence":"additional","affiliation":[{"name":"Periodontics Melbourne Dental School University of Melbourne Parkville VIC Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5110-2002","authenticated-orcid":false,"given":"Helen","family":"Davies","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Science University of Melbourne Parkville VIC Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wayne","family":"Fitzgerald","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Science University of Melbourne Parkville VIC Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junhua","family":"Xu","sequence":"additional","affiliation":[{"name":"The First Affiliated Hospital of Medicine College Zhe Jiang University Hangzhou Hangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6457-5327","authenticated-orcid":false,"given":"Ivan","family":"Darby","sequence":"additional","affiliation":[{"name":"Periodontics Melbourne Dental School University of Melbourne Parkville VIC Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,6,17]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2004.01082.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2004.01099.x"},{"key":"e_1_2_7_4_1","first-page":"536","article-title":"Oral implant surfaces: Part 1\u2010 review focusing on topographic and chemical properties of different surfaces and in vivo responses to them","volume":"17","author":"Albrektsson T.","year":"2004","journal-title":"The International Journal of Prosthodontics"},{"key":"e_1_2_7_5_1","first-page":"544","article-title":"Oral implant surfaces: Part 2\u2010 review focusing on clinical knowledge of different surfaces","volume":"17","author":"Albrektsson T.","year":"2004","journal-title":"The International Journal of Prosthodontics"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2006.01317.x"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0501.2003.00972.x"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12170"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1563\/1548-1336-35.3.130"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-4636(199804)40:1<1::AID-JBM1>3.0.CO;2-Q"},{"key":"e_1_2_7_11_1","first-page":"931","article-title":"Mechanisms of endosseous integration","volume":"11","author":"Davies J. 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