Evidence map›Paper›PMID 34358360›Full record

ArticleClinical oral implants research2021

Resonance frequency analysis of implants placed in condensed bone.

Balazs Feher, Florian Frommlet, Reinhard Gruber, Lena Hirtler, Christian Ulm, Ulrike Kuchler

Open access · hybridAbstract read
In one paragraph

Article in Clinical oral implants research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Balazs FeherDepartment of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.ORCID https://orcid.org/0000-0003-4386-6237
Florian FrommletInstitute of Medical Statistics, Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Vienna, Austria.
Reinhard GruberDepartment of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.ORCID https://orcid.org/0000-0001-5400-9009
Lena HirtlerDivision of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria.
Christian UlmDepartment of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.
Ulrike KuchlerDepartment of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.
Medical University of Vienna · ATStatistics Austria · ATUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesResonance 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

methodsIn 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.

resultsIn 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).

conclusionsRFA is feasible for monitoring stability after late implant placement into condensed bone, but not after immediate placement into condensed fresh extraction sites.

Indexed as

Dental Implantation, EndosseousDental ImplantsHumansMandibleReproducibility of ResultsResonance Frequency AnalysisTorqueDental Implantsbone condensationedentulous jawimmediate implant placementimplant stabilityresonance frequency analysis

Identifiers

PMID34358360
PMCPMC9292279
OpenAlexW3192618650

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.