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Restoration of endodontically treated teeth with major hard tissue loss – bond strength of conventionally and adhesively luted fiber‐reinforced composite posts
Author(s) -
Binus Stefanie,
Koch Andreas,
Petschelt Anselm,
Berthold Christine
Publication year - 2013
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/edt.12013
Subject(s) - bond strength , adhesive , materials science , glass ionomer cement , cement , composite number , composite material , fiber , dentistry , universal testing machine , glass fiber , ultimate tensile strength , medicine , layer (electronics)
Aim To evaluate the influence of the luting system on the pull‐out bond strength of conventionally and adhesively luted fiber‐reinforced composite posts ( FRCP s). Material and methods One hundred extracted bovine teeth ( D i 3) were endodontically treated and randomly assigned to nine test groups and one control group ( n = 10) according to luting system. After preparing the post cavities (8 mm), the custom‐made FRCP s were inserted using conventional glass‐ionomer cement (Ketac Cem), resin‐reinforced glass‐ionomer cement ( M eron P lus and F uji P lus), self‐adhesive resin cement ( R ely X U nicem and Bis C em), self‐conditioning adhesive and resin cement [ M ultilink P rimer + M ultilink and A dhe SE + DC A ctivator + M ulti C ore F low, or etch‐and‐rinse adhesive and resin cement ( S eal B ond U ltima + C ore C em, and L uxa B ond + L uxa C ore Z ). As a control, custom‐made titanium posts were inserted with K etac C em. After water storage (37°C, 24 h, dark), the pull‐out test was performed, followed by failure mode evaluation. The data were statistically analyzed (α = 0.05) using analysis of variance and the D unnett T 3 post hoc test. Results Luting system type and identity significantly influenced bond strength ( P < 0.001); the bond strengths of all luting systems except K etac C em, M eron P lus, and B is C em were significantly higher than the control (4.4 ± 1.1 MP a). R ely X U nicem (12.0 ± 3.0 MP a) and LB + LCZ (14.8 ± 2.3 MPa) generated the highest bond strengths. The clinical application was demonstrated by restoring a traumatized tooth with extensive coronal destruction and thin root canal walls, using a FRCP combined with direct composite build‐up. Conclusion Luting system selection significantly influenced the bond strength of conventionally and adhesively luted FRCP s to bovine root canal dentin.