Measurement of Fracture Strength of Zirconia Dental Implant Abutments with Internal and External Connections Using Acoustic Emission

Materials

SuetYeo Soo¹  Julian Satterthwaite²  Nikolaos Silikas² 

[1] Centre for Restorative Dentistry, Faculty of Dentistry, The National University of Malaysia, Selangor 43600, Malaysia;Dentistry, School of Medical Sciences, University of Manchester, Manchester M13 9PL, UK;

关键词: fracture strength;    implant abutments;    internal connection;    external connection;    acoustic emission;   

DOI  :  10.3390/ma12122009

来源: DOAJ

【 摘 要 】

The aim of the study was to investigate the fracture behaviour of four different groups of zirconia abutments with internal and external connections: (A) Astra Tech ZirDesign™ abutment on Astra Tech Implants, (B) Procera^® Esthetic abutment on Nobel Biocare MK III Groovy Implants, (C) IPS e.max^® on Straumann Implants, and (D) ZiReal^® Posts on Biomet 3I implants. The load was applied on the assemblies using a Zwick universal testing machine: the initial and final failure loads and amplitude were recorded using acoustic emission technique. Mean initial and final failure force was found to be significantly different in each group (P < 0.001). IPS e.max^® Straumann abutments exhibited the highest resistance to final fracture force compared to other abutment types. Acoustic emission can be used as one of the methods to detect fracture behaviour of implant abutments. There were no significant differences in fracture loads between the internal and externally connected zirconia abutments studied. However, externally connected abutments demonstrated screw loosening and some deformations.

【 授权许可】

Unknown