Effects of Axial Loading on the Pull-out Force of Conical Connection Abutments in Ankylos Implant

The International Journal of Oral & Maxillofacial Implants
Pei-Fang HsuMing-Lun Hsu

Abstract

The aim of this study was to assess the effects of simulated axial loadings on the pull-out force required to disengage a two-piece conical connection abutment from an implant. Ten conical connection abutments (Ankylos Regular/X Abutment, Dentsply-Friadent) and 10 implants (Ankylos C/X Implant) were used. The implant-abutment assemblies were divided randomly into two groups: control group (C) and experimental group (E). For group E (n = 5), a cyclic load of 18 to 180 N at a frequency of 10 Hz to 106 cycles was applied centrally and along the long axis of the implant, whereas for group C (n = 5), each sample was put on a workbench without cyclic loading at the same time during the testing period. Before mechanical loading, the initial torque values and the total lengths of tested samples of groups C and E were recorded. After cyclic loading, the postloading reverse torque value, the total length, and the pull-out force of tested samples of groups C and E were recorded. The difference between the initial torque value and the postloading reverse torque value was defined as the total torque loss. The difference between the initial total length and the postloading total length was defined as the axial displacement. The data were ana...Continue Reading

Citations

Oct 28, 2019·Clinical Oral Implants Research·Kuang-Ta YaoMing-Lun Hsu
Jan 31, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Aimen BagegniRalf Kohal

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