title: Crestal bone resorption 5 years after implant loading: clinical and radiologic results with a 2-stage implant system.
abstract: OBJECTIVE
  The aim of the present study was to assess crestal bone resorption 5 years after loading by conducting a clinical and radiographic evaluation of 112 Frialit-2 implants consecutively placed in 51 patients from January 1994 through June 1994.
  
  
  METHODS
  All implants were placed in the same private-practice clinic by the same surgeon. Clinical assessment included plaque score monitoring, bleeding on probing, probing depth, type of occlusion, and prosthetic adaptation. Intraoral radiographs were taken and compared using suitable software to accurately measure peri-implant bone resorption.
  
  
  RESULTS
  The survival rate of the implants was 100%. Plaque was present on 47 (42%) implants. Bleeding on probing was detectable at 17 implants (15.5%). Probing depth was > 5 mm for 5 implants (4.5%). Crestal bone resorption was > 3 mm for 32 implants (28.6%); the average observed crestal bone resorption was 2.17+/-1.6 mm.
  
  
  CONCLUSIONS
  The survival rate of the implants may be the result of the relatively short functional period as well as the strict and frequent clinical evaluations associated with oral hygiene procedures during the supportive periodontal therapy.
  
  
  CONCLUSIONS
  The results suggest that with strict plaque control, and provided that the patient follows a regular program of supportive therapy, crestal bone resorption around a 2-stage implant system may be limited.
authors.affiliation: Private Practice in Periodontics and Implant Dentistry, Florence, Italy. dr.gianoricci@libero.it
authors.forename: Giano
authors.initials: G
authors.lastname: Ricci
authors.forename: Mario
authors.initials: M
authors.lastname: Aimetti
authors.forename: Walter
authors.initials: W
authors.lastname: Stablum
authors.forename: Alessandro
authors.initials: A
authors.lastname: Guasti
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000209:etiology*; D003758:Dental Implantation, Endosseous; D015921:Dental Implants / Q000009:adverse effects*; D003774:Dental Plaque Index; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010512:Periodontal Index; D011859:Radiography; D012189:Retrospective Studies
chemical_list: D015921:Dental Implants