Abstract

In-Vitro Effect of G-Bond and Z-Prime Plus on Fracture Resistance of Prefabricated Zirconia Posts Bonded to Root Canal Walls

Highlights

  • Fracture resistance of dental roots is an important factor to consider in the rehabilitation of endodontically treated teeth that have lost a great portion of their coronal structure

  • The surface of zirconia ceramics may be malformed; this influences the mechanical properties of zirconia.[4]. Teeth with fiber posts reportedly undergo fracture at much higher loads compared to teeth with zirconia posts.[5]. A study on fracture resistance of different intracanal posts bonded using new generations of bonding agents concluded that silane might be necessary to reinforce the bond of fiber posts cemented with resin cements

  • Fracture resistance of dental roots should be taken into account when selecting the best method for reconstruction of endodontically treated teeth that have lost a large portion of their coronal structure

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Summary

Introduction

Fracture resistance of dental roots is an important factor to consider in the rehabilitation of endodontically treated teeth that have lost a great portion of their coronal structure. G-Bond is a 7th-generation bonding agent comprising a strong resin, urethane dimethacrylate (UDMA), dimethacrylates, acidic resins, 4-Methacryloxyethyl trimellitic anhydride (4-MET), and phosphoric acid ester monomers It has shown promising results in the bonding of restorations.[8] It is supplied in one bottle and does not require separate etching. This study aimed to assess the effect of G-Bond and Z-Prime Plus on fracture resistance of prefabricated zirconia posts bonded to root canal walls. Z-Prime Plus and G-Bond were applied to the surfaces of zirconia posts in groups 1 and 2, respectively, and the posts were cemented into the canals. Conclusion: G-Bond and Z-Prime Plus were not significantly different in fracture resistance of zirconia posts bonded to root canal walls.

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