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Primary Stability of Dental Implants in Low-Density (10 and 20 pcf) Polyurethane Foam Blocks: Conical vs Cylindrical Implants

Author

Listed:
  • Luca Comuzzi

    (Private Practice, San Vendemiano-Conegliano, 31020 Treviso, Italy
    These two Authors had an equal contribution to the study.)

  • Margherita Tumedei

    (Department of Medical, Oral and Biotechnological Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
    These two Authors had an equal contribution to the study.)

  • Ana Emilia Pontes

    (Department of Dentistry, Federal University of Juiz de Fora-Campus Governador Valadares, São Paulo 01000, Brazil)

  • Adriano Piattelli

    (Department of Medical, Oral and Biotechnological Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
    Biomaterials Engineering, Catholic University of San Antonio de Murcia (UCAM), 30001 Murcia, Spain
    Fondazione Villaserena per la Ricerca, Città Sant’Angelo, 65121 Pescara, Italy)

  • Giovanna Iezzi

    (Department of Medical, Oral and Biotechnological Sciences, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy)

Abstract

Background: The aim of the present study was to compare, in low-density polyurethane blocks, the primary implant stability values (micromobility) and removal torque values of three different implant geometries in two different bone densities representing the structure of the human posterior jaws. Methods: A total of 60 implants were used in the present investigation: twenty implants for each of three groups (group A, group B, and group C), in both polyurethane 10 pcf and 20 pcf densities. The insertion torque, pull-out torque, and implant stability quotient (ISQ) values were obtained. Results: No differences were found in the values of Group A and Group B implants. In both these groups, the insertion torques were quite low in the 10 pcf blocks. Better results were found in the 20 pcf blocks, which showed very good stability of the implants. The pull-out values were slightly lower than the insertion torque values. High ISQ values were found in Group A and B implants. Lower values were present in Group C implants. Conclusions: The present investigation evaluated implants with different geometries that are available on the market, and not experimental implants specifically created for the study. The authors aimed to simulate real clinical conditions (poor-density bone or immediate post-extraction implants) in which knowledge of dental implant features, which may be useful in increasing the primary stability, may help the oral surgeon during the surgery planning.

Suggested Citation

  • Luca Comuzzi & Margherita Tumedei & Ana Emilia Pontes & Adriano Piattelli & Giovanna Iezzi, 2020. "Primary Stability of Dental Implants in Low-Density (10 and 20 pcf) Polyurethane Foam Blocks: Conical vs Cylindrical Implants," IJERPH, MDPI, vol. 17(8), pages 1-11, April.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:8:p:2617-:d:344219
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    Citations

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    Cited by:

    1. Assunta Patano & Nunzio Cirulli & Matteo Beretta & Paola Plantamura & Alessio Danilo Inchingolo & Angelo Michele Inchingolo & Ioana Roxana Bordea & Giuseppina Malcangi & Grazia Marinelli & Antonio Sca, 2021. "Education Technology in Orthodontics and Paediatric Dentistry during the COVID-19 Pandemic: A Systematic Review," IJERPH, MDPI, vol. 18(11), pages 1-27, June.
    2. 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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