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Resonance frequency analysis in relation to jawbone characteristics and during early healing of implant installation.
- Source :
-
Clinical oral implants research [Clin Oral Implants Res] 2007 Jun; Vol. 18 (3), pp. 275-80. Date of Electronic Publication: 2007 Mar 12. - Publication Year :
- 2007
-
Abstract
- Objectives: To monitor resonance frequency analysis (RFA) in relation to the jawbone characteristics and during the early phases of healing and incorporation of Straumann dental implants with an SLA surface.<br />Material and Methods: 17 Straumann 4.1 mm implants (10 mm) and 7 Straumann 4.8 mm implants (10 mm) were installed and ISQ determined at baseline and after 1, 2, 3, 4, 5, 6, 8 and 12 weeks. Central bone cores were analyzed from the 4.1 mm implants using micro CT for bone volume density (BVD) and bone trabecular connectivity (BTC).<br />Results: Pocket probing depths ranged from 2-4 mm and bleeding on probing from 5-20%. At baseline, BVD varied between 24% and 65% and BTC between 4.9 and 25.4 for the 4.1 mm implants. Baseline ISQ varied between 55 and 74 with a mean of 61.4. No significant correlations were found between BVD or BTC and ISQ Values. For the 4.8 mm diameter implants baseline ISQ values ranged from 57-70 with a mean of 63.3. Over the healing period ISQ values increased at 1 week and decreased after 2-3 weeks. After 4 weeks ISQ values, again increased slightly, no significant differences were noted over time. One implant (4.1 mm) lost stability at 3 weeks. Its ISQ value had dropped from 68 to 45. However the latter value was determined after the clinical diagnosis of instability.<br />Conclusion: ISQ values of 57-70 represented homeostasis and implant stability. However no predictive value for loosing implant stability can be attributed to RFA since the decrease occurred after the fact.
Details
- Language :
- English
- ISSN :
- 0905-7161
- Volume :
- 18
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Clinical oral implants research
- Publication Type :
- Academic Journal
- Accession number :
- 17355357
- Full Text :
- https://doi.org/10.1111/j.1600-0501.2007.01336.x