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Immediately loaded CAD-CAM manufactured fixed complete dentures using flapless implant placement procedures: a cohort study of consecutive patients.

AbstractSTATEMENT OF PROBLEM:
Data available regarding the treatment outcome for completely edentulous jaws by means of a prefabricated fixed complete denture placed immediately after flapless implant insertion using a surgical guide are only short term.
PURPOSE:
The purpose of this study was to follow the survival of implants inserted in completely edentulous jaws using a flapless procedure and immediately loaded with prefabricated fixed complete dentures for several years. A second purpose was to investigate whether there is a difference in marginal bone remodeling in smoking (S) and nonsmoking (NS) patients.
MATERIAL AND METHODS:
During a 5-year period (mean time of follow-up 2.2 years), 30 consecutive patients, 12 women, 38-74 years of age (average 56 years) were treated for complete edentulism in 1 arch in the Department of Periodontology at the University Hospitals in Leuven. The S group included 13 and the NS group 17 patients. Descriptive statistics were used to analyze the data. Two outcome parameters were analyzed: the cumulative survival rate (CSR) of individual implants and the marginal bone remodeling for up to 5 years in the 2 groups.
RESULTS:
Nine (4.9%) implants failed. Eight of the failures occurred in 3 smoking patients. The absolute survival rate for all patients was 95%, while the cumulative survival rate (CSR) after 5 years was 91.5%. For the NS group, the CSR was 98.9%, while for the S it was 81.2%. The mean marginal bone resorption was - 2.6 and - 1.2 mm in the S and NS groups, respectively.
CONCLUSIONS:
The present findings indicate that the treatment protocol described results in good implant survival rate even after several years. Smoking may eventually compromise the efficacy of this treatment concept.
AuthorsAnna M Sanna, Liene Molly, Daniel van Steenberghe
JournalThe Journal of prosthetic dentistry (J Prosthet Dent) Vol. 97 Issue 6 Pg. 331-9 (Jun 2007) ISSN: 0022-3913 [Print] United States
PMID17618915 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Topics
  • Adult
  • Aged
  • Alveolar Process (diagnostic imaging, surgery)
  • Bone Resorption (diagnostic imaging)
  • Cohort Studies
  • Computer-Aided Design
  • Dental Implantation, Endosseous (instrumentation, methods)
  • Dental Prosthesis, Implant-Supported (methods)
  • Dental Restoration Failure
  • Denture, Complete
  • Female
  • Humans
  • Jaw, Edentulous (diagnostic imaging, rehabilitation)
  • Longitudinal Studies
  • Middle Aged
  • Smoking (adverse effects)
  • Surgery, Computer-Assisted (methods)
  • Time Factors
  • Tomography, Spiral Computed (methods)
  • Treatment Outcome
  • Weight-Bearing

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