Evaluation of an Endosseous Oral Implant System According to UNI EN ISO 14801 Fatigue Test Protocol

Abstract

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.

Impact of Intentional Overload on Joint Stability of Internal Implant‐Abutment Connection System with Different Diameter

“…No fracture failure or plastic deformation of the implant/abutment complex was detected after 500 N of cyclic loading; 500 N was adopted as an arbitrary overload condition imitating the functional environment of the second molar area . Several in vitro studies of implant cyclic loading adopted ISO 14801 test setup with worst‐case scenario and applied a relatively low loading condition, ranging from 50 to 150 N. Some in vitro and finite element model studies reported 500 N as the maximum failure strength of implants made of commercially pure titanium (cp Ti‐grade 4) that plastic deformation could occur under oblique loading . Unlike those studies, our study aimed to evaluate the overloading environment with maximized axial displacement.…”

“…18 Several in vitro studies of implant cyclic loading adopted ISO 14801 test setup with worst-case scenario and applied a relatively low loading condition, ranging from 50 to 150 N. Some in vitro and finite element model studies reported 500 N as the maximum failure strength of implants made of commercially pure titanium (cp Ti-grade 4) that plastic deformation could occur under oblique loading. 20,39 Unlike those studies, our study aimed to evaluate the overloading environment with maximized axial displacement. In our study, ICC demonstrated sufficient joint strength under cyclic overload when the vector of loading is identical with the axis of the implant/abutment connection.…”

Influence of grade and surface topography of commercially pure titanium on fatigue properties

“…As an alternative, fatigue strength has been investigated using cyclic loading [19][20][21] . In 2003, ISO developed a standardized protocol for implant fatigue testing 22) , and there have been several studies that have followed the procedure [23][24][25][26][27] . Although these papers were evaluated to implant systems, there have been no reports on fatigue of Cp-Ti cylinder, which were treated with the same surface treatment as commercial implants.…”

“…Although these papers were evaluated to implant systems, there have been no reports on fatigue of Cp-Ti cylinder, which were treated with the same surface treatment as commercial implants. The evaluation of implant systems using the staircase method, a fatigue testing procedure of ISO standard, has been increasing 27) . However, the fatigue property of Cp-Ti on its own has not been studied using the same staircase method used for dental implant systems.…”

Pérdida de torque de los tornillos de fijación del pilar en implantes sometidos a cargas cíclicas

“…La dirección de las fuerzas de masticación es principalmente axial siendo los valores promedio de 216 N a 880 N en la región molar y de entre 108 N y 299 N en la zona incisal 23,24,25 , para la dentición natural. Además, la angulación de los dientes anteriores determina la aparición de un componente horizontal de unos 20 N de media 22,24 .…”