title: Resonance frequency analysis after the placement of 133 dental implants.
abstract: BACKGROUND
  The primary stability of dental implants is related to the bone in contact with the latter, and can be evaluated by resonance frequency analysis.
  
  
  METHODS
  Measurements were made in 133 implants (62 in the upper jaw and 71 in the mandible) of resonance frequency and insertion force to determine implant stability on the day of surgery, with an evaluation of its relationship to different variables.
  
  
  RESULTS
  The stability quotient of the implants on the day of surgery was 62.1, with an insertion force of 35.7 N. The insertion force was proportional to the resonance frequency, with an increasing stability quotient with growing insertion force. The stability quotient was greater in the larger diameter implants, shorter implants, in mandibular placement and in areas of more compact bone.
  
  
  CONCLUSIONS
  The stability quotient on the day of implant placement is greater in higher bone density areas.
authors.affiliation: University of Valencia.
authors.forename: Araceli
authors.initials: A
authors.lastname: Boronat-López
authors.forename: Miguel
authors.initials: M
authors.lastname: Peñarrocha-Diago
authors.forename: Orlando
authors.initials: O
authors.lastname: Martínez-Cortissoz
authors.forename: Ignacio
authors.initials: I
authors.lastname: Mínguez-Martínez
mesh_terms: D000328:Adult; D000368:Aged; D001703:Biophysics / Q000379:methods; D015921:Dental Implants; D003945:Diagnosis, Oral / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D015921:Dental Implants