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

Abstract

A single paragraph of about 200 words maximum. For research articles, abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts, but without headings: (1) Background: Place the question addressed in a broad context and highlight the purpose of the study; (2) Methods: Describe briefly the main methods or treatments applied; (3) Results: Summarize the article’s main findings; and (4) Conclusions: Indicate the main conclusions or interpretations. The abstract should be an objective representation of the article, it must not contain results which are not presented and substantiated in the main text and should not exaggerate the main conclusions. Please add in this section. 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.

Biological Responses to the Transitional Area of Dental Implants: Material- and Structure-Dependent Responses of Peri-Implant Tissue to Abutments

“…One advantage of zirconia is that it is more aesthetic than titanium. While several studies show that there are no significant differences in the soft tissue seal between these two materials, zirconia has a lower fracture strength than titanium, and is thus more likely to be associated with mechanical complications [45][46][47]. In addition, adhesion of bacteria to titanium occurs less readily than to zirconia [48].…”

Comparison of Polishing Effects of Different Polishing Systems on Highly-Translucent Monolithic Y-TZP Ceramics

“…At present, the main materials used for making all-ceramic crowns are aluminum oxide glass penetrant ceramics, hot die casting glass ceramics and yttria-stabilized tetragonal zirconia polycrystals (Y-TZP). Among them, the mechanical properties of Y-TZP porcelain stabilized by 3%mol yttrium are significantly better than other ceramic materials, coupled with its excellent biocompatibility, Y-TZP porcelain has been widely used in the production of post-core, orthodontic bracket, artificial implant materials and implant abutters in the dental pulp cavity through CAD/CAM technology [1][2][3][4]. To prolong the service life of zirconia all-ceramic restorations, a monolithic zirconia crown-bridge restoration with porcelain decoration removed was designed.…”

Bioactive Glass Coated Zirconia for Dental Implants: a review

“…The demand for zirconia dental implants are increasing recently. In comparison with the Ti dental implants, their increased esthetic, due to similarity to the human tooth color, is the main benefit of these implants [34][35][36][37][38][39][40][41][42][43][44][45]. To enhance the zirconia bioactivity and morphological properties for proliferation, excellent cell attachment and the acceptable differentiation during the surrounded bone cure, many efforts have been made [46,47].…”