title: Implant survival rates for oral and maxillofacial surgery residents: a retrospective clinical review with analysis of resident level of training on implant survival.
abstract: OBJECTIVE
  This study evaluates dental implant survival rates in cases where surgery was performed by oral and maxillofacial residents and determines whether the level of resident training influenced the outcome of dental implant treatment.
  
  
  METHODS
  Retrospective review of all 2-stage implants placed between July 1, 2002 and June 30, 2004 by oral and maxillofacial surgery residents-in-training at the Washington Hospital Center was carried out. Patients were seen for follow-up at 1-week, 1-month, and 6-month intervals after implant surgery. The criteria for implant success in this study were based on clinical and radiographic evidence of implant osseointegration during the follow-up period. We evaluated implant survival rates and used Cox proportional hazards modeling to analyze whether level of resident training or location of implant placement influenced implant survival.
  
  
  RESULTS
  This study included 175 implants placed in 54 patients. The overall survival rate of implants placed by oral and maxillofacial surgery residents at all levels of training was 91%. No statistically significant difference in implant survival rates was observed as a function of the level of training of the resident surgeon (P = .89) or location of implant placement (P = .93).
  
  
  CONCLUSIONS
  Survival rates for implants placed by surgeons in training are comparable to rates reported in the literature. There was no statistically significant difference in survival rates when a comparison of level of training was taken into consideration. To our knowledge, this study is the first to examine implant survival rates as a function of surgeon experience in the setting of an oral and maxillofacial residency program and suggests that predictable outcomes in implant treatment are attainable by surgeons in training.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Washington Hospital Center, Washington, DC 20010, USA. mmelo2@msn.com
authors.forename: Maico D
authors.initials: MD
authors.lastname: Melo
authors.forename: Hamid
authors.initials: H
authors.lastname: Shafie
authors.forename: George
authors.initials: G
authors.lastname: Obeid
mesh_terms: D002983:Clinical Competence; D003757:Dental Implantation / Q000193:education; D003758:Dental Implantation, Endosseous; D015921:Dental Implants / Q000706:statistics & numerical data; D019232:Dental Restoration Failure; D005260:Female; D006801:Humans; D007396:Internship and Residency; D008297:Male; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D013515:Surgery, Oral / Q000193:education*; D016019:Survival Analysis; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants