{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T10:24:57Z","timestamp":1783074297067,"version":"3.54.6"},"reference-count":38,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2006,8,7]],"date-time":"2006-08-07T00:00:00Z","timestamp":1154908800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clinic Periodontology"],"published-print":{"date-parts":[[2006,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Aim: <\/jats:bold> The objective of this retrospective study was to assess the reasons for tooth loss in a sample of patients who underwent periodontal therapy and supportive periodontal therapy (SPT) in a Brazilian private periodontal practice.<\/jats:p><jats:p><jats:bold>Material and Methods: <\/jats:bold> A sample of 120 subjects who had been treated and maintained for 10 years or longer was selected from patients attending a periodontal practice. All patients followed a similar treatment: basic procedures, re\u2010evaluation and periodontal surgery where indicated. Reasons for tooth loss were categorized as periodontal, caries, endodontal, root fractures and extraction of retained or partially erupted third molars.<\/jats:p><jats:p><jats:bold>Results: <\/jats:bold> Of the 2927 teeth present at the completion of active periodontal treatment, 53 (1.8%) were lost due to periodontal disease, 16 (0.5%) for root fracture, six (0.2%) to caries, five (0.2%) for endodontic reasons and 31 (1.0%) were lost to extraction of retained or partially erupted third molars. Logistic regression analysis was performed to investigate the association between five independent variables with tooth loss due to periodontitis. Only age (&gt;60 years) and smoking were statistically significant (<jats:italic>p<\/jats:italic>&lt;0.05).<\/jats:p><jats:p><jats:bold>Conclusion: <\/jats:bold> The findings of this survey were consistent with previous studies. Older subjects and smokers were more susceptible to periodontal tooth loss. In addition, patients with generalized chronic periodontitis were treated and maintained for long\u2010term periods with low rates of tooth loss.<\/jats:p>","DOI":"10.1111\/j.1600-051x.2006.00972.x","type":"journal-article","created":{"date-parts":[[2006,8,7]],"date-time":"2006-08-07T15:08:24Z","timestamp":1154963304000},"page":"759-764","source":"Crossref","is-referenced-by-count":122,"title":["Tooth loss in well\u2010maintained patients with chronic periodontitis during long\u2010term supportive therapy in Brazil"],"prefix":"10.1111","volume":"33","author":[{"given":"Luiz A.","family":"Chambrone","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leandro","family":"Chambrone","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,8,10]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2005.00744.x"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0757.2002.290109.x"},{"key":"e_1_2_6_4_1","first-page":"39","volume-title":"Glossary of Periodontal Terms","author":"American Academy of Periodontology","year":"1992"},{"key":"e_1_2_6_5_1","first-page":"502","article-title":"Position paper. 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