Show simple item record

dc.contributor.advisorMa, Sunyoung
dc.contributor.advisorTawse-Smith, Andrew
dc.contributor.advisorLyons, Karl
dc.contributor.authorChen, Maggie Hsiao-Mei
dc.date.available2018-11-08T19:53:43Z
dc.date.copyright2018
dc.identifier.citationChen, M. H.-M. (2018). Resonance frequency analysis in assessing implant stability: a retrospective analysis (Thesis, Doctor of Clinical Dentistry). University of Otago. Retrieved from http://hdl.handle.net/10523/8560en
dc.identifier.urihttp://hdl.handle.net/10523/8560
dc.description.abstractBackground: Resonance frequency analysis (RFA) has been proposed as a non-invasive tool for evaluating implant stability. It provides quantitative measurements (implant stability quotients, ISQs) supplementary to conventional clinical and radiographic assessments, but eliminates the subjectiveness that may be involved with other evaluations. Long-term clinical studies validating its association with other clinical parameters are limited, therefore, the aim of this study was to retrospectively assess ISQ values from patients that were followed up for 10 years, and evaluate any correlation between ISQs and clinical parameters such as change of marginal bone level (MBL). Methods: One hundred and seventy-three participants (65 males and 108 females; age range 21 to 85 years), and 383 implants were followed up for 10 years. Implant locations, MBLs, and ISQs recorded at various recall times were entered for statistical analysis. Mixed model analysis was applied with the level of significance set at P < 0.05. Results: Twenty out of 21 implants failed within 1 year of functional loading, resulting in a 10-year cumulative implant survival estimate of 95%. The failed implants had lower ISQs at surgery (52.3±7.03) and baseline (52.5±4.20) when compared to surviving implants, and the difference was statistically significant at surgery (P < 0.05). The mean ISQ values generally increased over time, with various patterns of change between implants when grouped according to patient sex and implant locations. There was no correlation between the changes in the ISQ values and the MBLs. Conclusions: ISQ values may help to identify the implants at higher risk of failure. There may be various patterns of change over time in addition to an overall increase in ISQ values. Both similar and contradictory findings were found when compared with earlier literature, and a correlation between RFA and MBL change could not be identified. Despite limitations, the present study provides an overview of the clinical performance of RFA based on long-term clinical data.
dc.language.isoen
dc.publisherUniversity of Otago
dc.rightsAll items in OUR Archive are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectresonance frequency analysis
dc.subjectdental implant
dc.subjectimplant stability
dc.titleResonance frequency analysis in assessing implant stability: a retrospective analysis
dc.typeThesis
dc.date.updated2018-11-08T04:37:36Z
dc.language.rfc3066en
thesis.degree.disciplineOral Rehabilitation
thesis.degree.nameDoctor of Clinical Dentistry
thesis.degree.grantorUniversity of Otago
thesis.degree.levelDoctoral
otago.interloanyes
otago.openaccessAbstract Only
 Find in your library

Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item is not available in full-text via OUR Archive.

If you would like to read this item, please apply for an inter-library loan from the University of Otago via your local library.

If you are the author of this item, please contact us if you wish to discuss making the full text publicly available.

This item appears in the following Collection(s)

Show simple item record