Relationship between implant stability measurements obtained by insertion torque and resonance frequency analysis: A systematic review

Abstract

Background

The primary stability of dental implants can be evaluated by insertion torque (IT) and resonance frequency analysis (RFA).

Objective

Assess the supposed relationship between the IT and RFA.

Materials and methods

A systematic review was performed based on the PRISMA. The electronic search was performed in the PubMed, Web of Science, SCOPUS, Cochrane Library electronic, OVID, and Scielo databases. Manual searches were also performed. There was no restrictions regarding year of publication or language. The articles identified were assessed independently by 3 trained researchers. Clinical trials reporting the RFA values by means of implant stability quotient (ISQ) and IT were included.

Results

The electronic and manual searches yielded 2017 studies. Twelve studies were included in the systematic review. There was no statistically significant correlation between ISQ and IT (r_s = .366; P = .079). The quality of the evidence was downgraded by risk of bias and indirectness; and the certainty of the evidence was low.

Conclusion

IT and RFA are independent and incomparable methods of measuring primary stability. Is important for clinicians to define only one method of evaluation for each implant.

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