Evaluation of an endosseous oral implant system according to UNI en ISO 14801 fatigue test protocol

Enrico Marchetti, Stefano Ratta, Stefano Mummolo, Simona Tecco, Raffaella Pecci, Rossella Bedini, Giuseppe Marzo

Research output: Contribution to journalArticle

Abstract

Purpose: The aim of this in vitro study was to evaluate the maximum fracture load and the mechanical performance to cyclic fatigue stress of a dental implant system.

Methods: An experimental study according to the international standards (UNI EN ISO 14801: 2008) was carried out using 15 implants (3.80 mm of diameter and 13 mm of length) with applied straight titanium abutment tightened to 30 N. Five samples were subjected to compression stress at break. Based on the mean fracture load value obtained in this test, the levels of dynamic loading range were set that were carried on at a frequency of 15 Hz for 5 × 106 cycles.

Results: The compression stress at break mean value of the tested implants was 499.40 N (SD ±50.1 N). In the mechanical fatigue stress test, the fatigue limit for 5 × 106 load cycles for all tested samples was 250 N.

Conclusions: The evaluated implant system proved to withstand considerable mechanical loads under the "worst-case" loading situation performed according to UNI EN ISO 14801 standard. The reliability of this test protocol makes it suitable to be accomplished for understanding and comparing mechanical properties of other implant systems.

Original languageEnglish
Pages (from-to)665-671
Number of pages7
JournalImplant Dentistry
Volume23
Issue number6
DOIs
Publication statusPublished - Dec 11 2014

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Fatigue
Mechanical Stress
Dental Implants
Titanium
Exercise Test
In Vitro Techniques

Keywords

  • Fatigue stress test
  • Fixture-abutment connection
  • Fracture strength

ASJC Scopus subject areas

  • Oral Surgery

Cite this

Evaluation of an endosseous oral implant system according to UNI en ISO 14801 fatigue test protocol. / Marchetti, Enrico; Ratta, Stefano; Mummolo, Stefano; Tecco, Simona; Pecci, Raffaella; Bedini, Rossella; Marzo, Giuseppe.

In: Implant Dentistry, Vol. 23, No. 6, 11.12.2014, p. 665-671.

Research output: Contribution to journalArticle

Marchetti, Enrico ; Ratta, Stefano ; Mummolo, Stefano ; Tecco, Simona ; Pecci, Raffaella ; Bedini, Rossella ; Marzo, Giuseppe. / Evaluation of an endosseous oral implant system according to UNI en ISO 14801 fatigue test protocol. In: Implant Dentistry. 2014 ; Vol. 23, No. 6. pp. 665-671.
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