title: Analysis of 164 titanium oxide-surface implants in completely edentulous arches for fixed prosthesis anchorage using the pterygomaxillary region.
abstract: OBJECTIVE
  The purpose of the article was to evaluate the survival rates of TiUnite implants and then compare them to a previous similar study of machined-surface implants.
  
  
  METHODS
  This report presents the results of 82 consecutive patients treated since the introduction of Nobel Biocare's TiUnite surface. The patients were treated with complete-arch restorations using bilateral pterygomaxillary implants in edentulous maxillae. A total of 840 implants were placed in immediate extraction or healed sites, with a mean of 10 implants placed per patient.
  
  
  RESULTS
  In all, 826 of the 840 implants osseointegrated, for a cumulative survival rate (CSR) of 98.3%. One hundred fifty-eight of 164 pterygomaxillary implants successfully osseointegrated, yielding a 96.3% survival rate.
  
  
  CONCLUSIONS
  The results of this complete-arch maxillary prospective study suggest that Brånemark System TiUnite implants are more predicable than implants with a machined surface. Compared to a similar 1999 study in which the survival rate for machined-surface implants was 92.1%, the present study had a significantly higher survival rate of 98.6% with the TiUnite surface (P < .001). In the pterygomaxillary region, there was an increase of 8% with the TiUnite surface as opposed to the machined surface (P < .001). In addition, 62% of the implants in the present study were immediately loaded, compared to 0% in the machined-surface implant study. The titanium oxide surface appears to assist the healing response of the bone-implant interface.
authors.affiliation: Prosthodontics Intermedica, Fort Washington, Pennsylvania 19034, USA. balshi2@aol.com
authors.forename: Stephen F
authors.initials: SF
authors.lastname: Balshi
authors.forename: Glenn J
authors.initials: GJ
authors.lastname: Wolfinger
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Balshi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003781:Denture Retention / Q000379:methods*; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012189:Retrospective Studies; D013499:Surface Properties; D016019:Survival Analysis
chemical_list: D015921:Dental Implants