Article Title and Bibliographic Information: Tooth Loss in Well-Maintained Patients with Chronic Periodontitis During Long-Term Supportive Therapy in Brazil. Chambrone LA, Chambrone L. J Clin Periodontol 2006;33(10):759-64. Level of Evidence: 2. Strength of Recommendation: B. Purpose/Question: The purpose of this retrospective cohort study is to investigate the reasons for tooth loss in a sample of patients who underwent long-term supportive periodontal therapy in a private practice. Source of Funding: Information not available. Type of Study/Design: Cohort Study.
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