title: The influence of cortical width of sheep bone on the primary stability of dental implants: an in vitro study.
abstract: OBJECTIVE
  To explore the relationship between primary implant stability and cortical bone thickness.
  
  
  METHODS
  Twenty-three implants were inserted into fresh sheep bone. The cortical width of implant recipient sites was determined using cone-beam computed tomography (CBCT). The maximum insertion torque value of each implant was recorded. Implant stability was measured using an Osstell system. Spearman's correlation coefficient was used to evaluate the correlations among variables.
  
  
  RESULTS
  The cortical width and Hounsfield unit mean values were 3.3 ± 1.0 (mm) and 1468.5 ± 272.3, respectively. The correlation between cortical bone thickness and Osstell value was not statistically significant (p > 0.01).
  
  
  CONCLUSIONS
  The cortical bone thickness evaluated using CBCT had no correlation with the primary stability of dental implants.
authors.affiliation: Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Bijan
authors.initials: B
authors.lastname: Heidari
authors.forename: Meisam
authors.initials: M
authors.lastname: Khalesi
authors.forename: Amin
authors.initials: A
authors.lastname: Khodadoustan
authors.forename: Mahdi
authors.initials: M
authors.lastname: Kadkhodazadeh
mesh_terms: D000818:Animals; D015519:Bone Density; D054893:Cone-Beam Computed Tomography; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D005269:Femur / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D023421:Models, Animal; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012756:Sheep
chemical_list: D015921:Dental Implants