{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T22:15:51Z","timestamp":1767910551885,"version":"3.49.0"},"reference-count":45,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2025,3,25]],"date-time":"2025-03-25T00:00:00Z","timestamp":1742860800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100022284","name":"Graduate School, Prince of Songkla University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100022284","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004508","name":"Prince of Songkla University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004508","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Implant placement accuracy in the distal free\u2010end posterior region is often compromised, increasing the risk of damage to adjacent anatomical structures and negatively affecting restoration function, occlusal loading, and aesthetics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>This study aimed to assess the accuracy of implant placement using static computer\u2010assisted implant surgery (CAIS) in the posterior distal free\u2010end partially edentulous area with varying cantilever lengths and to evaluate the correlation between cantilever length and implant deviations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>A prospective observational study involved 40 patients with 72 posterior implant sites, divided into three groups: 1\u2010unit cantilever (1\u2010UC; distal free\u2010end with a mesial neighboring tooth), 2\u2010unit cantilever (2\u2010UC; one\u2010tooth space from the mesial neighboring tooth), and control (single\u2010tooth space with both mesial and distal neighboring teeth). Implants were placed using fully guided static CAIS, and accuracy was assessed by comparing angular and linear deviations at the implant platform and apex using post\u2010operative CBCT scans. The correlation between cantilever length and implant deviations was analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The 2\u2010UC group exhibited significantly higher angular deviations (5.01\u00b0\u2009\u00b1\u20092.41\u00b0) compared to the 1\u2010UC (3.60\u00b0\u2009\u00b1\u20091.92\u00b0, <jats:italic>p<\/jats:italic>\u2009=\u20090.033) and control groups (2.62\u00b0\u2009\u00b1\u20091.13\u00b0, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). The 3D deviations at both the platform and apex were also significantly greater in the 2\u2010UC group (1.15\u2009\u00b1\u20090.38\u2009mm, 1.74\u2009\u00b1\u20090.53\u2009mm, respectively) than in the 1\u2010UC (0.86\u2009\u00b1\u20090.35\u2009mm, <jats:italic>p<\/jats:italic>\u2009=\u20090.001; 1.30\u2009\u00b1\u20090.47\u2009mm, <jats:italic>p<\/jats:italic>\u2009=\u20090.002) and control groups (0.72\u2009\u00b1\u20090.30\u2009mm, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001; 1.04\u2009\u00b1\u20090.38\u2009mm, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). Deviations in the cantilever groups predominantly trended towards the buccal and apical directions. Additionally, positive correlations were found between cantilever length and implant deviations at both the platform (<jats:italic>R<\/jats:italic>\u2009=\u20090.306, <jats:italic>p<\/jats:italic>\u2009=\u20090.034) and apex levels (<jats:italic>R<\/jats:italic>\u2009=\u20090.294, <jats:italic>p<\/jats:italic>\u2009=\u20090.042).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Cantilever length in posterior implant positions significantly affects the accuracy of implant placement using static CAIS. Implants positioned at a 2\u2010unit cantilever or with lengths exceeding 10\u2009mm are more prone to deviating from the planned positions.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.70020","type":"journal-article","created":{"date-parts":[[2025,3,28]],"date-time":"2025-03-28T06:54:46Z","timestamp":1743144886000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Impact of Cantilever Length on the Accuracy of Static <scp>CAIS<\/scp> in Posterior Distal Free\u2010End Regions"],"prefix":"10.1111","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-2696-1579","authenticated-orcid":false,"given":"Marina","family":"Miyashita","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Prince of Songkla University  Songkhla Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3532-4887","authenticated-orcid":false,"given":"Narit","family":"Leepong","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Prince of Songkla University  Songkhla Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2309-5308","authenticated-orcid":false,"given":"Polathep","family":"Vichitkunakorn","sequence":"additional","affiliation":[{"name":"Department of Family and Preventive Medicine, Faculty of Medicine Prince of Songkla University  Songkhla Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1389-2522","authenticated-orcid":false,"given":"Srisurang","family":"Suttapreyasri","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Prince of Songkla University  Songkhla Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,3,25]]},"reference":[{"key":"e_1_2_10_2_1","first-page":"11","article-title":"The Long\u2010Term Efficacy of Currently Used Dental Implants: A Review and Proposed Criteria of Success","volume":"1","author":"Albrektsson T.","year":"1986","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.5125\/jkaoms.2024.50.2.70"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100501.2004.01117.x"},{"key":"e_1_2_10_5_1","first-page":"43","article-title":"Optimizing Esthetics for Implant Restorations in the Anterior Maxilla: Anatomic and Surgical Considerations","volume":"19","author":"Buser D.","year":"2004","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.2302\/kjm.54.172"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2008.070067"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12474"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1708\u20108208.2010.00275.x"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.11607\/jomi.2014suppl.g1.2"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.4103\/jispcd.JISPCD_380_17"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12046"},{"issue":"3","key":"e_1_2_10_13_1","first-page":"275","article-title":"Computer\u2010Guided Implant Dentistry for Precise Implant Placement: Combining Specialized Stereolithographically Generated Drilling Guides and Surgical Implant Instrumentation","volume":"30","author":"Mandelaris G. 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