Resonance frequency analysis in relation to jawbone characteristics and during early healing of implant installation

Huwiler, Melanie Bianca; Pjetursson, Bjarni E.; Bosshardt, Dieter; Salvi, Giovanni; Lang, Niklaus Peter (2007). Resonance frequency analysis in relation to jawbone characteristics and during early healing of implant installation. Clinical oral implants research, 18(3), pp. 275-280. Oxford: Wiley-Blackwell 10.1111/j.1600-0501.2007.01336.x

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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. 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). 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. 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.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Huwiler, Melanie Bianca; Pjetursson, Bjarni E.; Bosshardt, Dieter; Salvi, Giovanni and Lang, Niklaus Peter

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0905-7161

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

04 Oct 2013 14:51

Last Modified:

25 Jan 2017 12:17

Publisher DOI:

10.1111/j.1600-0501.2007.01336.x

PubMed ID:

17355357

Web of Science ID:

000247240800002

BORIS DOI:

10.7892/boris.21591

URI:

https://boris.unibe.ch/id/eprint/21591 (FactScience: 8081)

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