title: Impact of platform switching on peri-implant bone remodeling around short implants in the posterior region, 1-year results from a split-mouth clinical trial.
abstract: OBJECTIVE
  To assess the effect of platform switching on peri-implant bone remodeling around short implants (8.5 mm) placed in the resorbed posterior mandibular and maxillary region of partially edentulous patients.
  
  
  METHODS
  Seventeen patients with one or more missing teeth at both sides in the posterior region were, according to a split-mouth design, randomly assigned to be treated with a platform-matched (control) implant on the one side and a platform-switched implant (test) on the other side. A total of 62 short implants (8.5 mm) with a dual-acid etched surface with nanometer-sized calcium phosphate particles was placed. Follow-up visits were conducted one month and one year after placing the implant crown. Outcome measures were interproximal bone level changes, implant survival and clinical parameters.
  
  
  RESULTS
  One year after loading, peri-implant bone remodeling around test implants (0.53 ± 0.54 mm) was significant less than around control implants (0.85 ± 0.65 mm; p = .003). With regard to implant survival and clinical parameters no significant differences were observed between test and control implants.
  
  
  CONCLUSIONS
  This study suggested that peri-implant bone remodeling is affected by platform switching. One year after loading, interproximal bone levels were better maintained at implants restored according to the platform switching concept.
authors.affiliation: Research fellow, Department of Oral and Maxillofacial Surgery and Department of Fixed and Removable Prosthodontics, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands Professor, Department of Oral and Maxillofacial Surgery, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands Professor, Department of Oral and Maxillofacial Surgery and Department of Fixed and Removable Prosthodontics, Centre for Dentistry and Oral Hygiene, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands.
authors.forename: Gerdien
authors.initials: G
authors.lastname: Telleman
authors.forename: Gerry M
authors.initials: GM
authors.lastname: Raghoebar
authors.forename: Arjan
authors.initials: A
authors.lastname: Vissink
authors.forename: Henny J A
authors.initials: HJ
authors.lastname: Meijer
mesh_terms: D000134:Acid Etching, Dental; D000328:Adult; D000368:Aged; D016723:Bone Remodeling; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D055815:Young Adult
chemical_list: D015921:Dental Implants