title: Correlation of bone vascularity in the posterior mandible and subsequent implant stability: a preliminary study.
abstract: OBJECTIVE
  Bone vascularity is an important factor in process of osseointegration. The aim of this study was to find whether or not blood perfusion of the bone around the prepared implant sites influences subsequent implant stability.
  
  
  METHODS
  Patients with bilaterally edentulous mandible were treated with dental implants. Bone vascularity in implant sites was previously noted using Laser Doppler Flowmetry (LDF). Implant stability quotient (ISQ) was measured during follow-up period of 26th week. Statistical distribution and correlation between LDF and ISQ values were presented. Other variables (type of implant loading; sex and distance from the apical part of implant sites to the roof of the mandibular canal) were collected and correlated with LDF values.
  
  
  RESULTS
  The mean recorded LDF value was 53.05 perfusion unit. Eighteen implants were immediately loaded, and the other 18 were early loaded. In the group of early loaded implants, a statistically significant correlation between mean value of LDF and changing value of resonance frequency analysis (P < 0.05) was noted at 5th, 6th, 12th, and 26th weeks. Using Pearson coefficient of correlation, there was no statistically significant relationship between other variables and LDF values.
  
  
  CONCLUSIONS
  LDF values of implant sites might determine future implant stability.
authors.affiliation: *Associate Professor, College of Dental Science, Medical Health and Science University, Ras Al Khaimah, United Arab Emirates. †Professor, Department of Oral Physiology, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. ‡Associate Professor, Clinic of Oral Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. §Associate Professor, Department of Medical Statistics and Informatics, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. ‖Professor, Clinic of Oral Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia. ¶Professor, College of Dental Science, Medical Health and Science University, Ras Al Khaimah, United Arab Emirates. #Professor, Department for Fixed and Removable Prosthodontics, University Zurich, Zurich, Switzerland.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Kokovic
authors.forename: Elena
authors.initials: E
authors.lastname: Krsljak
authors.forename: Miroslav
authors.initials: M
authors.lastname: Andric
authors.forename: Bozidar
authors.initials: B
authors.lastname: Brkovic
authors.forename: Biljana
authors.initials: B
authors.lastname: Milicic
authors.forename: Milan
authors.initials: M
authors.lastname: Jurisic
authors.forename: Muhammed Mustahsen
authors.initials: MM
authors.lastname: Rahman
authors.forename: Christoph H F
authors.initials: CH
authors.lastname: Hämmerle
mesh_terms: D015921:Dental Implants; D017268:Dental Prosthesis Retention; D005260:Female; D006801:Humans; D017078:Laser-Doppler Flowmetry; D008297:Male; D008334:Mandible / Q000098:blood supply*; D008875:Middle Aged; D012737:Sex Factors; D013997:Time Factors
chemical_list: D015921:Dental Implants