Feher, Balazs; Frommlet, Florian; Gruber, Reinhard; Hirtler, Lena; Ulm, Christian; Kuchler, Ulrike (2021). Resonance frequency analysis of implants placed in condensed bone. Clinical oral implants research, 32(10), pp. 1200-1208. Wiley 10.1111/clr.13817
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Clinical_Oral_Implants_Res_-_2021_-_Feher_-_Resonance_frequency_analysis_of_implants_placed_in_condensed_bone.pdf - Published Version Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND). Download (1MB) | Preview |
OBJECTIVES
Resonance frequency analysis (RFA) is used to monitor implant stability. Its output, the Implant Stability Quotient (ISQ), supposedly correlates with insertion torque, a common measurement of primary stability. However, the reliability of RFA in condensed bone remains unclear.
MATERIAL AND METHODS
In this human cadaver study in edentulous jaws and fresh extraction sockets, implants were inserted using a split-mouth approach into condensed or untreated bone. Mean ISQ, peak insertion torque, and pre- and postoperative bone volume fractions (BV/TV) were assessed.
RESULTS
In edentulous jaws, insertion torque and ISQ correlated both in untreated (r = 0.63, p = 0.02) and in condensed (r = 0.82, p < 0.01) bone. In extraction sockets, insertion torque and ISQ only correlated in untreated (r = 0.78, p < 0.01), but not in condensed bone (r = 0.15, p = 0.58). In all edentulous jaws, preoperative BV/TV correlated with insertion torque (r = 0.90, p < 0.0001), ISQ (r = 0.64, p < 0.001), and changes in BV/TV (r = -0.71, p < 0.01). In all extraction sockets, preoperative BV/TV did not correlate with either insertion torque (r = 0.33, p = 0.15), ISQ (r = 0.38, p = 0.09), or changes in BV/TV (r = -0.41, p = 0.09). Joint analysis identified preoperative BV/TV as a predictor of postoperative BV/TV (p < 0.001), insertion torque (p < 0.001), and ISQ (p < 0.001).
CONCLUSIONS
RFA is feasible for monitoring stability after late implant placement into condensed bone, but not after immediate placement into condensed fresh extraction sites.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology 04 Faculty of Medicine > School of Dental Medicine > Periodontics Research |
UniBE Contributor: |
Gruber, Reinhard |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
0905-7161 |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Doris Burri |
Date Deposited: |
26 Jan 2022 14:58 |
Last Modified: |
05 Dec 2022 16:01 |
Publisher DOI: |
10.1111/clr.13817 |
PubMed ID: |
34358360 |
Uncontrolled Keywords: |
bone condensation edentulous jaw immediate implant placement implant stability resonance frequency analysis |
BORIS DOI: |
10.48350/163946 |
URI: |
https://boris.unibe.ch/id/eprint/163946 |
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