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Article: Long-term evaluation of non-submerged ITI implants- Part 1: 8-year life table analysis of a prospective multi-center study with 2359 implants

TitleLong-term evaluation of non-submerged ITI implants- Part 1: 8-year life table analysis of a prospective multi-center study with 2359 implants
Authors
KeywordsIti Implants
Life Table Analysis
Long-Term Study
Non-Submerged Implants
Osseointegration
Success Rates
Survival Rates
Issue Date1997
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
Citation
Clinical Oral Implants Research, 1997, v. 8 n. 3, p. 161-172 How to Cite?
AbstractIn the present multi-center study, non-submerged ITI implants were prospectively followed to evaluate their long-term prognosis in fully and partially edentulous patients. In a total of 1003 patients, 2359 implants were consecutively inserted. Following a healing period of 3-6 months, the successfully integrated implants were restored with 393 removable and 758 fixed restorations. Subsequently, all consecutive implants were documented annually up to 8 years. At each examination, the clinical status of all implants was evaluated according to predefined criteria of success. Therefore, the data base allowed the evaluation of 8-year cumulative survival and success rates for 2359 implants. In addition, cumulative success rates were calculated for implant subgroups divided per implant type, implant length, and implant location. Furthermore, the actual 5-year survival and success rates could be determined for 488 implants. During the healing period, 13 implants did not successfully integrate, whereas 2346 implants fulfilled the predefined criteria of success. This corresponds with an early failure rate of 0.55%. During follow-up, 19 implants were classified as failures due to several reasons. In addition, 17 implants (≈ 0.8%) demonstrated at the last annual examination a suppurative periimplant infection. Including 127 drop out implants (≈ 5.4% drop out rate) into the calculation, the 8-year cumulative survival and success rates resulted in 96.7% and 93.3%, respectively. The analysis of implant subgroups showed slightly more favorable cumulative success rates for screw type implants (> 95%) compared to hollow-cylinder implants (91.3%), and clearly better success rates for mandibular implants (≈ 95%) when compared to maxillary implants (≈ 87%). The actual 5-year survival and success rates of 488 implants with 98.2% and 97.3%, respectively, were slightly better than the estimated 5-year cumulative survival and success rates of 2359 implants indicating that the applied life table analysis is a reliable statistical method to evaluate the long-term prognosis of dental implants. It can be concluded that non-submerged ITI implants maintain success rates well above 90% in different clinical centers for observation periods up to 8 years. © Munksgaard 1997.
Persistent Identifierhttp://hdl.handle.net/10722/153994
ISSN
2015 Impact Factor: 3.464
2015 SCImago Journal Rankings: 1.427
References

 

DC FieldValueLanguage
dc.contributor.authorBuser, Den_US
dc.contributor.authorMericskeStern, Ren_US
dc.contributor.authorBernard, JPen_US
dc.contributor.authorBehneke, Aen_US
dc.contributor.authorBehneke, Nen_US
dc.contributor.authorHirt, HPen_US
dc.contributor.authorBelser, UCen_US
dc.contributor.authorLang, NPen_US
dc.date.accessioned2012-08-08T08:22:43Z-
dc.date.available2012-08-08T08:22:43Z-
dc.date.issued1997en_US
dc.identifier.citationClinical Oral Implants Research, 1997, v. 8 n. 3, p. 161-172en_US
dc.identifier.issn0905-7161en_US
dc.identifier.urihttp://hdl.handle.net/10722/153994-
dc.description.abstractIn the present multi-center study, non-submerged ITI implants were prospectively followed to evaluate their long-term prognosis in fully and partially edentulous patients. In a total of 1003 patients, 2359 implants were consecutively inserted. Following a healing period of 3-6 months, the successfully integrated implants were restored with 393 removable and 758 fixed restorations. Subsequently, all consecutive implants were documented annually up to 8 years. At each examination, the clinical status of all implants was evaluated according to predefined criteria of success. Therefore, the data base allowed the evaluation of 8-year cumulative survival and success rates for 2359 implants. In addition, cumulative success rates were calculated for implant subgroups divided per implant type, implant length, and implant location. Furthermore, the actual 5-year survival and success rates could be determined for 488 implants. During the healing period, 13 implants did not successfully integrate, whereas 2346 implants fulfilled the predefined criteria of success. This corresponds with an early failure rate of 0.55%. During follow-up, 19 implants were classified as failures due to several reasons. In addition, 17 implants (≈ 0.8%) demonstrated at the last annual examination a suppurative periimplant infection. Including 127 drop out implants (≈ 5.4% drop out rate) into the calculation, the 8-year cumulative survival and success rates resulted in 96.7% and 93.3%, respectively. The analysis of implant subgroups showed slightly more favorable cumulative success rates for screw type implants (> 95%) compared to hollow-cylinder implants (91.3%), and clearly better success rates for mandibular implants (≈ 95%) when compared to maxillary implants (≈ 87%). The actual 5-year survival and success rates of 488 implants with 98.2% and 97.3%, respectively, were slightly better than the estimated 5-year cumulative survival and success rates of 2359 implants indicating that the applied life table analysis is a reliable statistical method to evaluate the long-term prognosis of dental implants. It can be concluded that non-submerged ITI implants maintain success rates well above 90% in different clinical centers for observation periods up to 8 years. © Munksgaard 1997.en_US
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLRen_US
dc.relation.ispartofClinical Oral Implants Researchen_US
dc.subjectIti Implantsen_US
dc.subjectLife Table Analysisen_US
dc.subjectLong-Term Studyen_US
dc.subjectNon-Submerged Implantsen_US
dc.subjectOsseointegrationen_US
dc.subjectSuccess Ratesen_US
dc.subjectSurvival Ratesen_US
dc.titleLong-term evaluation of non-submerged ITI implants- Part 1: 8-year life table analysis of a prospective multi-center study with 2359 implantsen_US
dc.typeArticleen_US
dc.identifier.emailLang, NP:nplang@hkucc.hku.hken_US
dc.identifier.authorityLang, NP=rp00031en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0031152016en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031152016&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume8en_US
dc.identifier.issue3en_US
dc.identifier.spage161en_US
dc.identifier.epage172en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridBuser, D=7006034952en_US
dc.identifier.scopusauthoridMericskeStern, R=7005421604en_US
dc.identifier.scopusauthoridBernard, JP=7403165248en_US
dc.identifier.scopusauthoridBehneke, A=6603400753en_US
dc.identifier.scopusauthoridBehneke, N=8334869000en_US
dc.identifier.scopusauthoridHirt, HP=7004335342en_US
dc.identifier.scopusauthoridBelser, UC=35614703700en_US
dc.identifier.scopusauthoridLang, NP=7201577367en_US

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