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

    1. [1] Universidad de Sevilla

      Universidad de Sevilla

      Sevilla, España

    2. [2] MSc. Clinical Lecturer. Fernando Pessoa University and Porto Dental Institute, Porto. (Portugal)
    3. [3] DDS, MSc, PhD. Clinical Lecturer Fernando Pessoa University and Porto Dental Institute, Porto. (Portugal)
    4. [4] MD, DDS MSc, PhD. Fernando Pessoa University and Porto Dental Institute, Porto. (Portugal)
  • Localización: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, ISSN-e 1698-6946, Vol. 24, Nº. 5 (September), 2019
  • Idioma: inglés
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  • Resumen
    • Assess 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.

      120 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.

      The 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.

      The 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.


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