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Does the index in Morse taper connection affect the abutment stability? An in vitro experimental study

Author

Listed:
  • Valentina Paz Goyeneche
  • Guillermo Castro Cortellari
  • Fernando Rodriguez
  • Piedad N De Aza
  • Eleani Maria da Costa
  • Antonio Scarano
  • Nilton De Bortoli Júnior
  • Sergio Alexandre Gehrke

Abstract

The present study compared three different implant and abutment sets of type Morse taper (MT) connection, with- and without-index, were analyzed regarding their mechanical behavior without and with cyclic load application simulating the masticatory function. Ninety implant and abutment (IA) sets were used in the present study, divided into three groups (n = 30 samples per group): Group A, Ideale solid straight abutment (one piece) without index; Group B, Ideale abutment with an angle of 30-degree (two pieces) without index; Group C, Ideale abutment with an angle of 30-degree (two pieces) with index. The abutment stability quotient (ASQ) values, detorque value and rotation angle were measured before and after the cycling load. Twenty IA sets of each group were submitted to mechanical load at 360,000 cycles. The ASQ without load were 64.7 ± 2.49 for the group A, 60.2 ± 2.64 for the group B, 54.4 ± 3.27 for the group C; With load were 66.1 ± 5.20 for the group A, 58.5 ± 6.14 for the group B, 58.9 ± 2.99 for the group C. Detorque values were lower in groups B and C compared to group A (p

Suggested Citation

  • Valentina Paz Goyeneche & Guillermo Castro Cortellari & Fernando Rodriguez & Piedad N De Aza & Eleani Maria da Costa & Antonio Scarano & Nilton De Bortoli Júnior & Sergio Alexandre Gehrke, 2024. "Does the index in Morse taper connection affect the abutment stability? An in vitro experimental study," PLOS ONE, Public Library of Science, vol. 19(3), pages 1-14, March.
    • Handle: RePEc:plo:pone00:0298462
    DOI: 10.1371/journal.pone.0298462
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    1. Paula López-Jarana & Carmen María Díaz-Castro & Artur Falcão & Blanca Ríos-Carrasco & Ana Fernandez-Palacín & José-Vicente Ríos-Santos & Mariano Herrero-Climent, 2020. "Is It Possible to Monitor Implant Stability on a Prosthetic Abutment? An In Vitro Resonance Frequency Analysis," IJERPH, MDPI, vol. 17(11), pages 1-14, June.
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