Influence of Transducer Orientation on OsstellTM Stability Measurements of Osseointegrated Implants
- 16 February 2007
- journal article
- Published by Wiley in Clinical Implant Dentistry and Related Research
- Vol. 9 (1), 60-64
- https://doi.org/10.1111/j.1708-8208.2007.00035.x
Abstract
BACKGROUND: Resonance frequency (RF) analysis is frequently used to monitor implant stability in patients. The influence of transducer orientation on RF of implants placed in jawbone has not been evaluated.\ud PURPOSE: The aim of this study was to evaluate to what extent transducer orientation influences RF. The second aim was to evaluate if measurements taken with any particular orientation would best relate to marginal bone levels.\ud MATERIALS AND METHODS: Nine patients edentulous in the upper jaw received 55 implants 3 years before this study. They underwent clinical and radiographic evaluation. Using Osstell (Integration Diagnostics AB, Göteborg, Sweden), four RF measurements were made for each implant. Measurements were obtained with the transducer cantilever placed buccally (B), distally (D), palatally (P), and mesially (M).\ud RESULTS: All implants were clinically stable. Significant differences resulted between the measurements perpendicular to the bony crest (B, P) and the parallel ones (M, D). A tendency of negative correlation was found between marginal bone levels and implant stability quotient (ISQ) measurements; however, this correlation was not statistically significant.\ud CONCLUSIONS: In conclusion, when measuring the RF of dental implants using the Osstell, it has to be taken into account that the transducer orientation influences the measurement. It seems therefore advisable to standardize the orientation. Moreover, although there was a tendency, any statistical significant correlation between ISQ values and marginal bone levels could not be establishedKeywords
This publication has 13 references indexed in Scilit:
- Interventions for replacing missing teeth: different types of dental implantsPublished by Wiley ,2005
- Predicting osseointegration by means of implant primary stabilityClinical Oral Implants Research, 2004
- Implant stability measurement of delayed and immediately loaded implants during healing.Clinical Oral Implants Research, 2004
- Resonance frequency assessment of dental implant stability with various bone qualities: a numerical approachClinical Oral Implants Research, 2002
- Stability measurements of one-stage Branemark implants during healing in mandibles. A clinical resonance frequency analysis studyInternational Journal of Oral & Maxillofacial Surgery, 1999
- The design of a vibration transducer to monitor the integrity of dental implantsProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 1998
- The application of resonance frequency measurements to study the stability of titanium implants during healing in the rabbit tibiaClinical Oral Implants Research, 1997
- Resonance frequency measurements of implant stability in viva. A cross‐sectional and longitudinal study of resonance frequency measurements on implants in the edentulous and partially dentate maxilla.Clinical Oral Implants Research, 1997
- Quantitative determination of the stability of the implant‐tissue interface using resonance frequency analysisClinical Oral Implants Research, 1996