title: Effects of electromagnetic field on bone healing around commercially pure titanium surface: histologic and mechanical study in rabbits.
abstract: OBJECTIVE
  The purpose of this pilot study was to evaluate the histologic and mechanical healing process in dental implants under the action of pulsed electromagnetic field (PEMF).
  
  
  METHODS
  Forty-eight commercially pure implant fixtures were implanted in tibiae metaphysis of 12 New Zealand white rabbits divided into experimental (PEMF) and control groups. A PEMF with pulse width of 85 microseconds and a pulse frequency of 20 Mc was applied for 30 minutes per day. The animals were killed 21 and 42 days after implantation. The mechanical tests were performed in all animals and bone biopsies were prepared for decalcified sections analysis.
  
  
  RESULTS
  Mechanical tests did not show significant differences between the groups (P > 0.05); however, statistically significant differences were observed over time (P < 0.0001). Similar histologic features were achieved for both groups.
  
  
  CONCLUSIONS
  These results suggest that PEMF stimulation does not improve the bone-healing process around commercially pure dental implants.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Dental School of Piracicaba (UNICAMP), Piracicaba-São Paulo, Brazil.
authors.forename: Edmur Pereira
authors.initials: EP
authors.lastname: Buzzá
authors.forename: Jamil Awad
authors.initials: JA
authors.lastname: Shibli
authors.forename: Roberto Henrique
authors.initials: RH
authors.lastname: Barbeiro
authors.forename: José Ricardo de Albergaria
authors.initials: JR
authors.lastname: Barbosa
mesh_terms: D000818:Animals; D001861:Bone Regeneration; D001842:Bone and Bones / Q000033:anatomy & histology; D015921:Dental Implants; D004574:Electromagnetic Fields; D005260:Female; D020007:Implants, Experimental; D011817:Rabbits; D013977:Tibia; D014025:Titanium
chemical_list: D015921:Dental Implants; D014025:Titanium