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Influence of Implant Design and Under-Preparation of the Implant Site on Implant Primary Stability. An In Vitro Study

Author

Listed:
  • Mariano Herrero-Climent

    (Porto Dental Institute, 4150-518 Porto, Portugal)

  • Bernardo Ferreira Lemos

    (Porto Dental Institute, 4150-518 Porto, Portugal
    Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal)

  • Federico Herrero-Climent

    (Department of Periodontology, University Complutense of Madrid, 28040 Madrid, Spain)

  • Carlos Falcao

    (Porto Dental Institute, 4150-518 Porto, Portugal
    Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal)

  • Helder Oliveira

    (Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal)

  • Manuela Herrera

    (Department of Stomatology, University of Seville, 41009 Seville, Spain)

  • Francisco Javier Gil

    (Faculty of Dentistry, International University of Catalonia, 08017 Barcelona, Spain)

  • Blanca Ríos-Carrasco

    (Department of Periodontology, University of Seville, 41009 Seville, Spain)

  • José-Vicente Ríos-Santos

    (Department of Periodontology, University of Seville, 41009 Seville, Spain)

Abstract

The aim of this study was to evaluate the effects of different implant sites an under-preparation sequence associated with two different implant designs on implant primary stability measured by two parameters: insertion torque (IT) and implant stability quotient (ISQ). It used two different implants: one cylindrical as a control and another one with a tapered design. The implants were inserted in type III fresh humid bovine bone and four drilling sequences were used: one control, the one proposed by the implant company (P1), and three different undersized (P2, P3 and P4). P2 was the same as P1 without the cortical drill, P3 was without the last pilot drill and P4 was without both of them. The sample size was n = 40 for each of the eight groups. Final IT was measured with a torquemeter and the ISQ was measured with Penguin resonance frequency analysis. Results showed that both ISQ and IT have a tendency to increase as the preparation technique reduces the implant site diameter when compared with the standard preparation, P1. The preparations without cortical drill, P2 and P4, showed the best results when compared with the ones with a cortical drill. Tapered implants always showed higher or the same ISQ and IT values when compared with the cylindrical implants. Giving the limitations of this study, it can be concluded that reducing implant preparation can increase IT and ISQ values. Removing the cortical drill and the use of a tapered design implant are also effective methods of increasing primary implant stability.

Suggested Citation

  • Mariano Herrero-Climent & Bernardo Ferreira Lemos & Federico Herrero-Climent & Carlos Falcao & Helder Oliveira & Manuela Herrera & Francisco Javier Gil & Blanca Ríos-Carrasco & José-Vicente Ríos-Santo, 2020. "Influence of Implant Design and Under-Preparation of the Implant Site on Implant Primary Stability. An In Vitro Study," IJERPH, MDPI, vol. 17(12), pages 1-13, June.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:12:p:4436-:d:374153
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    Cited by:

    1. Luca Comuzzi & Margherita Tumedei & Camillo D’Arcangelo & Adriano Piattelli & Giovanna Iezzi, 2021. "An In Vitro Analysis on Polyurethane Foam Blocks of the Insertion Torque (IT) Values, Removal Torque Values (RTVs), and Resonance Frequency Analysis (RFA) Values in Tapered and Cylindrical Implants," IJERPH, MDPI, vol. 18(17), pages 1-10, September.

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