Comparative Analysis of 2 Resonance Frequency Measurement Devices

Jaramillo, Renee; Santos, Rita Batista; Lázaro, P; Romero, Manuel Faraón Carbajal; Ríos-Santos, José Vicente; Bullón, Pedro; Fernández-Palacín, Ana; Herrero-Climent, Mariano

doi:10.1097/id.0000000000000072

Cited by 29 publications

(22 citation statements)

References 19 publications

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“…Another widely used noninvasive analyzer, a resonance frequency analysis (RFA) device (Osstell ISQ, Integration Diagnostics AB, Gothenburg, Sweden), shows implant stability quotient (ISQ) values on the device's display. ISQ values constitute a near-linear mapping from the resonance frequency to a more clinically useful scale that ranges from 1 to 100 [3,4]. In clinical situations, an ISQ value greater than 70 is considered to indicate high implant stability for implant loading [5].…”

Section: Introductionmentioning

confidence: 99%

Comparison of implant stability measurements between a resonance frequency analysis device and a modified damping capacity analysis device: anin vitrostudy

Lee

Pyo

Cho

et al. 2020

J Periodontal Implant Sci

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Purpose: A stability-measuring device that utilizes damping capacity analysis (DCA) has recently been introduced in the field of dental implantology. This study aimed to evaluate the sensitivity and reliability of this device by measuring the implant stability of ex vivo samples in comparison with a resonance frequency analysis (RFA) device. Methods: Six implant beds were prepared in porcine ribs using 3 different drilling protocols to simulate various implant stability conditions. Thirty-six pork ribs and 216 bone-level implants measuring 10 mm in height were used. The implant beds were prepared using 1 of the following 3 drilling protocols: 10-mm drilling depth with a 3.5-mm-diameter twist drill, 5-mm drilling depth with a 4.0-mm-diameter twist drill, and 10-mm drilling depth with a 4.0-mm-diameter twist drill. The first 108 implants were external-connection implants 4.0 mm in diameter, while the other 108 implants were internal-connection implants 4.3 mm in diameter. The peak insertion torque (PIT) during implant placement, the stability values obtained with DCA and RFA devices after implant placement, and the peak removal torque (PRT) during implant removal were measured. Results: The intraclass correlation coefficients (ICCs) of the implant stability quotient (ISQ) results obtained using the RFA device at the medial, distal, ventral, and dorsal points were 0.997, 0.994, 0.994, and 0.998, respectively. The ICCs of the implant stability test (IST) results obtained using the DCA device at the corresponding locations were 0.972, 0.975, 0.974, and 0.976, respectively. Logarithmic relationships between PIT and IST, PIT and ISQ, PRT and IST, and PRT and ISQ were observed. The mean absolute difference between the ISQ and IST values on a Bland-Altman plot was −6.76 (−25.05 to 11.53, P<0.05). Conclusions: Within the limits of ex vivo studies, measurements made using the RFA and DCA devices were found to be correlated under a variety of stability conditions.

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Section: Introductionmentioning

confidence: 99%

Comparison of implant stability measurements between a resonance frequency analysis device and a modified damping capacity analysis device: anin vitrostudy

Lee

Pyo

Cho

et al. 2020

J Periodontal Implant Sci

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“…Meredith introduced this technology in 1996, and it is amply demonstrated that is a useful device for impartially estimating the implant’s stability when the implant is placed or at any time during follow up. The literature shows that is a reliable and reproducible technology [ 6 , 7 , 8 ]. The RFA is performed by measuring the ISQ (implant stability quotient), ranging from 0 (no stability at all) to 100 (the highest value of stability that can be achieved) [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

A Non-Interventional Study Documenting Use and Success of Tissue Level Implants

Díaz-Castro

Calvo

Gil

et al. 2020

IJERPH

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Numerous randomised controlled multicentric studies have investigated various responses to different treatment modalities with dental implants. These studies do not always show the results of daily practice as they are performed under controlled and strict clinical conditions. This multicentric, non-interventionist trial aimed to document the behaviour of implants when used in daily dental practice, without inclusion or exclusion criteria. One hundred and ninety-six screw-shaped, tissue-level implants were placed, and each clinician decided which implant, surgical loading and prosthetic protocol to use. At surgery, data related to the implants were recorded. Additionally, the crestal bone level changes were evaluated for up to two years of follow-up. Two implants were lost before they were loaded. The success rate was 98.31%, and the survival rate was 98.79%. The implant stability quotient (ISQ) at surgery was 68.61 ± 10.35 and at 2 years was 74.39 ± 9.64. The crestal–shoulder distances were 1.25 ± 1.09 mm and 1.68 ± 1.07 mm in the mesial and distal aspects on the day of surgery, respectively, and 2.04 ± 0.91 and 2.16 ± 0.99 mm at 2 years, respectively. At 2 years, 69.3% of the patients were highly satisfied. The use of implants under standard conditions seemed to have success rates similar to their placement in controlled studies.

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“…It was introduced by Meredith in 1996 and is an extensively used tool for an impartial estimation of implant stability at any phase of treatment or follow-up due to its high reliability and reproducibility. It enables the clinician to monitor the stability of the implant over time and analyse its evolution (6-8). The unit of measure of RFA is the implant stability quotient (ISQ), and its scale values can oscillate from 1 to 100.…”

Section: Introductionmentioning

confidence: 99%

Repeatability of the resonance frequency analysis values in implants with a new technology

Díaz-Castro

Falcão²,

López-Jarana³

et al. 2019

Med Oral

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BackgroundAssess the reliability (by means of reproducibility and repeatability) of the PenguinRFA system, analyse the ISQ values of different implant types and correlate the ISQ with the insertion torque during the placement of the implant.Material and Methods120 rough surface implants were placed in bovine bone (type II and III). The implants were divided into groups, according to its design. Once the implants were in place, the exact insertion torque was registered. Then, primary stability was measured by means of the resonance frequency analysis with the PenguinRFA and the Osstell ISQ devices. In each implant two transducers of each device were used. Three measurements were obtained with each transducer.ResultsThe mean ISQ (implant stability quotient) of the whole sample is 67,70 ± 5,51. The Intraclass Correlation Coefficient (ICC) is 0,933 and 0,944 for transducers 1 and 2 respectively. The reproducibility is 0,906. The mean insertion torque is 24,54 ± 8,96N. The correlation between the ISQ and the insertion torque is 0,507 p<0,000 (MultiPeg 1) and 0,468 p<0,000 (MultiPeg 2) for bone type II and 0,533 p<0,801 (MultiPeg 1) and 0,193 p<0,140 (MultiPeg 2) for bone type III.ConclusionsThe results of the present trial suggest that the PenguinRFA presents excellent reproducibility and repeatability, so it could be very useful in the monitoring of the stability of implants over time. Additionally, according to the results, the correlation between the IT and the RFA is low and there are no statistically significant differences in between implant types. Key words:Implant stability, insertion torque, ISQ, osseointegration, implant-supported dental prostheses, immediate dental implant loading.

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Comparative Analysis of 2 Resonance Frequency Measurement Devices

Abstract: Resonance frequency analysis systems in Osstell Mentor and Osstell ISQ show almost perfect reproducibility and repeatability.

Cited by 29 publications

References 19 publications

Comparison of implant stability measurements between a resonance frequency analysis device and a modified damping capacity analysis device: anin vitrostudy

Comparison of implant stability measurements between a resonance frequency analysis device and a modified damping capacity analysis device: anin vitrostudy

A Non-Interventional Study Documenting Use and Success of Tissue Level Implants

Repeatability of the resonance frequency analysis values in implants with a new technology

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