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Article: Implant stability in relation to osseointegration: An experimental study in the Labrador dog

TitleImplant stability in relation to osseointegration: An experimental study in the Labrador dog
Authors
Issue Date2009
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
Citation
Clinical Oral Implants Research, 2009, v. 20 n. 3, p. 313-318 How to Cite?
AbstractObjective: Resonance frequency analysis (RFA) is supposed to determine implant stability. The relation between RFA and the degree of bone-to-implant contact (BIC), however, is unclear. The objective of the present experiment was to evaluate RFA values in relation to osseointegration. Material and methods: In 20 Labrador dogs, all mandibular premolars were extracted bilaterally. After 3 months, four transmucosal screw-shaped experimental implants were placed in each mandibular premolar region. The implants (12 mm length, Ø 4.1 mm, insertion depth 9 mm) were either SLA surface or turned surface implants. The animals were divided into four groups (five dogs in each group) to study healing following implant installation at 2 h, 4 days, 1, 2, 4, 6, 8 and 12 weeks. Two experimental implants of each type were installed in each edentulous premolar region. A plaque control program was initiated 2 weeks after each implant installation. RFA assessments were performed at the time of implant installation, at one to three occasions during the monitoring period and at the termination of the experiment. At the end of the experiment, the dogs were sacrificed and each implant site was dissected and processed for histological analysis. The results of the histological analysis, i.e. marginal bone level, degree of osseointegration (BIC%) and bone density, were compared with the corresponding Implant Stability Quotient (ISQ) values of the RFA assessment. Results: No correlations between histological parameters of osseointegration and ISQ values could be identified. Marginal bone level changes, differences in BIC% and bone density were not reflected in the RFA at any time-point during the 12-week monitoring period. Conclusion: The value of RFA to predict implant stability over time and to determine at which time-point an implant may be exposed to functional load has to be questioned. © 2009 John Wiley & Sons A/S.
Persistent Identifierhttp://hdl.handle.net/10722/58022
ISSN
2015 Impact Factor: 3.464
2015 SCImago Journal Rankings: 1.427
ISI Accession Number ID
Funding AgencyGrant Number
ITI Foundation for the Promotion of Implantology, Switzerland179/2000
Clinical Research Foundation (CRF) for the Promotion of Oral Health
University of Berne, Switzerland
Funding Information:

This project was supported by a Research Program Project grant (179/2000) from the ITI Foundation for the Promotion of Implantology, Switzerland, and the Clinical Research Foundation (CRF) for the Promotion of Oral Health, University of Berne, Switzerland.

References

 

DC FieldValueLanguage
dc.contributor.authorAbrahamsson, Ien_HK
dc.contributor.authorLinder, Een_HK
dc.contributor.authorLang, NPen_HK
dc.date.accessioned2010-05-31T03:22:30Z-
dc.date.available2010-05-31T03:22:30Z-
dc.date.issued2009en_HK
dc.identifier.citationClinical Oral Implants Research, 2009, v. 20 n. 3, p. 313-318en_HK
dc.identifier.issn0905-7161en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58022-
dc.description.abstractObjective: Resonance frequency analysis (RFA) is supposed to determine implant stability. The relation between RFA and the degree of bone-to-implant contact (BIC), however, is unclear. The objective of the present experiment was to evaluate RFA values in relation to osseointegration. Material and methods: In 20 Labrador dogs, all mandibular premolars were extracted bilaterally. After 3 months, four transmucosal screw-shaped experimental implants were placed in each mandibular premolar region. The implants (12 mm length, Ø 4.1 mm, insertion depth 9 mm) were either SLA surface or turned surface implants. The animals were divided into four groups (five dogs in each group) to study healing following implant installation at 2 h, 4 days, 1, 2, 4, 6, 8 and 12 weeks. Two experimental implants of each type were installed in each edentulous premolar region. A plaque control program was initiated 2 weeks after each implant installation. RFA assessments were performed at the time of implant installation, at one to three occasions during the monitoring period and at the termination of the experiment. At the end of the experiment, the dogs were sacrificed and each implant site was dissected and processed for histological analysis. The results of the histological analysis, i.e. marginal bone level, degree of osseointegration (BIC%) and bone density, were compared with the corresponding Implant Stability Quotient (ISQ) values of the RFA assessment. Results: No correlations between histological parameters of osseointegration and ISQ values could be identified. Marginal bone level changes, differences in BIC% and bone density were not reflected in the RFA at any time-point during the 12-week monitoring period. Conclusion: The value of RFA to predict implant stability over time and to determine at which time-point an implant may be exposed to functional load has to be questioned. © 2009 John Wiley & Sons A/S.en_HK
dc.languageengen_HK
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLRen_HK
dc.relation.ispartofClinical Oral Implants Researchen_HK
dc.subject.meshAlveolar Process - physiology - surgeryen_HK
dc.subject.meshAnimalsen_HK
dc.subject.meshBicuspiden_HK
dc.subject.meshDental Implantation, Endosseous - methodsen_HK
dc.subject.meshDental Implants, Single-Toothen_HK
dc.subject.meshDental Prosthesis Designen_HK
dc.subject.meshDental Restoration Failureen_HK
dc.subject.meshDogsen_HK
dc.subject.meshMandible - surgeryen_HK
dc.subject.meshOsseointegration - physiologyen_HK
dc.subject.meshSurface Propertiesen_HK
dc.subject.meshWound Healing - physiologyen_HK
dc.titleImplant stability in relation to osseointegration: An experimental study in the Labrador dogen_HK
dc.typeArticleen_HK
dc.identifier.emailLang, NP:nplang@hkucc.hku.hken_HK
dc.identifier.authorityLang, NP=rp00031en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1600-0501.2008.01646.xen_HK
dc.identifier.pmid19405177-
dc.identifier.scopuseid_2-s2.0-60049098379en_HK
dc.identifier.hkuros165343en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-60049098379&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue3en_HK
dc.identifier.spage313en_HK
dc.identifier.epage318en_HK
dc.identifier.isiWOS:000263133000014-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridAbrahamsson, I=9635463000en_HK
dc.identifier.scopusauthoridLinder, E=7103084128en_HK
dc.identifier.scopusauthoridLang, NP=7201577367en_HK
dc.identifier.citeulike4022882-

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