title: Implant surface morphology and primary stability: is there a connection?
abstract: OBJECTIVE
  The aim was to review the influence of surface morphology on the primary stability of dental implants.
  
  
  METHODS
  MEDLINE-PubMed databases were explored from 1991 up to and including April 2010 using different combinations of the following terms: "dental," "implant surface roughness," "immediate loading," "initial stability," "primary stability," and "osseointegration." Articles published only in English language were included and hand searching was also performed. Letters to the Editor and unpublished data were excluded.
  
  
  RESULTS
  Ten studies (three clinical and seven experimental) were included according to the search databases. In six studies (three experimental and three clinical), the implant stability was measured at least after 4 weeks after implant insertion; and primary implant stability was recorded in four experimental studies, using the insertion and removal torque tests and resonance frequency analysis using implant stability quotient values.
  
  
  CONCLUSIONS
  Rough-surfaced implants have significantly higher success rates compared with dental implants with smooth surfaces; however, the question "Is there a connection between implant surface roughness (microdesign) and primary stability?" remains unanswered.
authors.affiliation: Eng A.B. Tissue Factors and Bone regeneration, King Saud University, Riyadh, Saudi Arabia.
authors.forename: Fawad
authors.initials: F
authors.lastname: Javed
authors.forename: Khalid
authors.initials: K
authors.lastname: Almas
authors.forename: Roberto
authors.initials: R
authors.lastname: Crespi
authors.forename: George E
authors.initials: GE
authors.lastname: Romanos
mesh_terms: D015921:Dental Implants; D017267:Dental Prosthesis Design; D017268:Dental Prosthesis Retention; D006801:Humans; D057893:Immediate Dental Implant Loading; D016348:Osseointegration / Q000502:physiology; D013499:Surface Properties; D019415:Torque
chemical_list: D015921:Dental Implants