title: A study of force distribution of loading stresses on implant-bone interface on short implant length using 3-dimensional finite element analysis.
abstract: OBJECTIVE
  The purpose of this study is to evaluate the biomechanics of short dental implants.
  
  
  METHODS
  Three-dimensional finite element analysis was used to simulate stress distribution of 8-mm implants with 6 different diameters in I to IV types of bone densities; meanwhile, axial and oblique loads were applied in this study.
  
  
  RESULTS
  It was found that the maximum Von-Mises stress varied significantly when the diameter was within 3.3 mm and 5 mm, whereas the change of peak stress was not obvious when the diameter was within 5.5 mm to 7.1 mm. The peak stress on the implant-bone interface increased with the reduction of bone density. The stress in types I and II had similar distribution and the same was true for types III and IV.
  
  
  CONCLUSIONS
  These results revealed that implants with larger diameter (<5.5 mm) and bone quality enhancement may be preferable to get better clinical effects. Prospective clinical studies are required to confirm this.
authors.affiliation: Department of Implantology, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Kang
authors.affiliation: Department of Implantology, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Yan-Yun
authors.initials: YY
authors.lastname: Wu
authors.affiliation: Department of Implantology, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Gong
authors.affiliation: Department of Implantology, West China School of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address: 173144551@qq.com.
authors.forename: Li
authors.initials: L
authors.lastname: Yue
authors.affiliation: Department of Implantology, West China School of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address: guominou66@yahoo.com.
authors.forename: Guo-Min
authors.initials: GM
authors.lastname: Ou
mesh_terms: D017076:Computer-Aided Design; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis / Q000379:methods*; D055119:Elastic Modulus; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional; D008422:Materials Testing; D016348:Osseointegration; D014025:Titanium; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D015921:Dental Implants; D014025:Titanium