Abstract | STATEMENT 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.
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Authors | Anna M Sanna, Liene Molly, Daniel van Steenberghe |
Journal | The Journal of prosthetic dentistry
(J Prosthet Dent)
Vol. 97
Issue 6
Pg. 331-9
(Jun 2007)
ISSN: 0022-3913 [Print] United States |
PMID | 17618915
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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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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