Behavior of implant and abutment sets of three different connections during the non-axial load application: An in vitro experimental study using a radiographic method

BACKGROUND: During the masticatory cycle, loads of different intensities and directions are received by the dental structures and/or implants, which can cause micromovements at the junction between the abutment and implant. OBJECTIVE: The objective of this in vitro study was to evaluate the behavior...

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Published in:Bio-medical materials and engineering 2022-01, Vol.33 (2), p.101-112
Main Authors: Gehrke, Sergio Alexandre, Dedavid, Berenice Anina, Marín, José Manuel Granero, Canullo, Luigi
Format: Article
Language:English
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Summary:BACKGROUND: During the masticatory cycle, loads of different intensities and directions are received by the dental structures and/or implants, which can cause micromovements at the junction between the abutment and implant. OBJECTIVE: The objective of this in vitro study was to evaluate the behavior of three different implant connections subjected to different load values using a digital radiography system. Additionally, the torque values for removing the abutment screws were also measured and compared. METHODS: Ninety sets of implant and abutment (IA) were used, divided into three groups according to the type of connection (n = 30 per group): EH group, external hexagon type connection; IH group, internal hexagon connection; and, MT group, Morse taper connection. RESULTS: MT group showed the better vertical misfit behavior at the three intensity of load applied, in comparison with EH and IH groups. In the analysis of torque maintenance (detorque test), MT group showed higher values of detorque when compared with the measured values of EH and IH groups (p
ISSN:0959-2989
1878-3619
DOI:10.3233/BME-211221