title: Tooth loss and alveolar bone crest loss during supportive periodontal therapy in patients with generalized aggressive periodontitis: retrospective study with follow-up of 8 to 15 years.
abstract: To determine the incidence of tooth loss in patients with generalized aggressive periodontitis (GAgP) during supportive periodontal therapy (SPT), identify tooth loss risk factors, and quantify alveolar crest height changes on periapical X-ray during follow-up.
  
  
  
  This retrospective study included 25 GAgP patients with 656 teeth after periodontal treatment (baseline). Data were gathered on sociodemographic, periodontal, and radiological variables at baseline and at the end of follow-up. Linear regression models were used to assess the association of risk factors with tooth loss.
  
  
  
  Twenty-eight teeth were extracted during SPT. The mean tooth loss per patient was 1.12 ± 2.01 for all causes and 0.9 ± 2.0 for periodontal disease after a mean follow-up of 10.9 ± 2 years. Clinical variables were improved at the end of follow-up, with a mean reduction of -1 ± 0.8 mm in probing pocket depth (-0.7 to -1.3, 95% CI) and -0.6 ± 0.9 mm in clinical attachment loss (-0.9 to -0.2, 95% CI). Mean alveolar bone crest loss at the end of follow-up was 0.36 ± 0.56 mm (0.10-0.61, 95% CI). Smoking was associated with tooth loss (p = 0.052).
  
  
  
  Tooth loss rate was low in GAgP in a regular supportive care programme. Clinical variables improved, and bone loss was minimal over time. Smoking was associated with tooth loss.
authors.affiliation: Periodontology Department, School of Dentistry, University of Granada, Granada, Spain.
authors.forename: Lucía
authors.initials: L
authors.lastname: Díaz-Faes
authors.affiliation: Private Practice in Periodontology "Clinica Guerrero", Marbella, Spain.
authors.forename: Adrián
authors.initials: A
authors.lastname: Guerrero
authors.affiliation: Periodontology Department, School of Dentistry, University of Granada, Granada, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Magán-Fernández
authors.affiliation: Department of Preventive Dentistry and Epidemiology, School of Dentistry, University of Granada, Granada, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Bravo
authors.affiliation: Periodontology Department, School of Dentistry, University of Granada, Granada, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Mesa
mesh_terms: D010520:Aggressive Periodontitis; D016301:Alveolar Bone Loss; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D010514:Periodontal Pocket; D012189:Retrospective Studies; D016388:Tooth Loss; D016896:Treatment Outcome
keywords: aggressive periodontitis; alveolar bone loss; retrospective studies; smoking; tooth loss