{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T16:02:02Z","timestamp":1790697722260,"version":"4.1.0"},"reference-count":66,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J Dental Hygiene"],"published-print":{"date-parts":[[2026,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This retrospective analysis aimed to evaluate the clinical changes and survival rate of first and second molars with furcation involvement (F\u2010Inv) grades II and III after completion of non\u2010surgical active periodontal therapy (APT) and subsequent supportive periodontal therapy (SPT), with a minimum follow\u2010up period of 14\u2009years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Retrospective data collection and analysis were conducted on patients with moderate to severe adult periodontitis aged &gt;\u200935\u2009years, with at least one first or second molar with F\u2010Inv grades II or III. Changes in clinical conditions of the molars with F\u2010Inv were assessed, recording the number and classification of molars with F\u2010Inv, and probing pocket depth (PPD) measurements at six sites per molar. Patient\u2010related variables including % sites with PPD \u2264\u20095\u2009mm, % bleeding on probing (BOP), tooth loss (TL), smoking status, diabetes, age and duration of SPT were also extracted. Correlations between these patient\u2010related variables and those related with F\u2010Inv molars were calculated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The analysis included 197 patients with 424 first and second molars with F\u2010Inv grades II and III. At the latest SPT evaluation (T1), 37% of patients achieved an overall PPD \u2264\u20095\u2009mm. While 66.8% of the molars with F\u2010Inv were retained, a significant number were lost. Mean PPD and percentage of sites with PPD &gt;\u20095\u2009mm decreased significantly from intake (T0) to T1 for these molars. Overall TL was estimated at an annual rate of 0.21 teeth lost per patient. A higher percentage of sites with PPD &gt;\u20095\u2009mm at T0 and T1 was correlated with a higher risk of molar loss. Smoking, age, % sites with PPD &gt;\u20095\u2009mm at T0, and % BOP at T0 correlated with increased TL.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Following non\u2010surgical APT and SPT over a period 14\u201317\u2009years, 66.8% of the molars with F\u2010Inv grades II and III were effectively maintained. Loss of molars was higher with F\u2010Inv III. Risk factors for molar loss included high % of sites with PPD &gt;\u20095\u2009mm at T0 and T1. For overall TL Smoking, age, a high percentage of sites with a PPD &gt;\u20095\u2009mm, and a high BOP percentage were identified as risk factors.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/idh.70047","type":"journal-article","created":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T04:19:28Z","timestamp":1775103568000},"page":"568-580","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Changes of Periodontal Conditions of First and Second Molars With Furcation Involvement Grade\n                    <scp>II<\/scp>\n                    or\n                    <scp>III \u2010 a Retrospective Analysis of 14 to 17 Year Follow\u2010up<\/scp>"],"prefix":"10.1111","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0686-0916","authenticated-orcid":false,"given":"Ayisha","family":"Gangadin","sequence":"first","affiliation":[{"name":"Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA) a joint venture between the Faculty of Dentistry of the University of Amsterdam and the Faculty of Dentistry of the Vrije Universiteit Amsterdam  Amsterdam the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6656-6934","authenticated-orcid":false,"given":"Cees","family":"Valkenburg","sequence":"additional","affiliation":[{"name":"Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA) a joint venture between the Faculty of Dentistry of the University of Amsterdam and the Faculty of Dentistry of the Vrije Universiteit Amsterdam  Amsterdam the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5075-8384","authenticated-orcid":false,"given":"Fridus (G. A.)","family":"van der Weijden","sequence":"additional","affiliation":[{"name":"Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA) a joint venture between the Faculty of Dentistry of the University of Amsterdam and the Faculty of Dentistry of the Vrije Universiteit Amsterdam  Amsterdam the Netherlands"},{"name":"Clinic for Periodontology Utrecht  Utrecht the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,1]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100757.2005.00107.x"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12366"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12946"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u2010051x.2008.01358.x"},{"key":"e_1_2_11_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12497"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12850"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13754"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u2010051x.2004.00563.x"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/jper.17\u20100719"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13551"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1979.50.1.23"},{"key":"e_1_2_11_13_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1994.65.1.25"},{"issue":"4","key":"e_1_2_11_14_1","first-page":"401","article-title":"Furcation Entrance Dimensions of the First and Second Mandibular Molars Among Jordanians","volume":"8","author":"Habashneh R. 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