Abstract
Objective
This article aims to evaluate the shear bond strength of a 3D-printed composite resin
compared with well-established materials (zirconia and E-max), bonded with two different
resin cements: Panavia V5 and ResiCem EX.
Materials and Methods
Shear bond strength was tested across six material–cement combinations: zirconia,
E-max, and 3D-printed composite resin, each bonded with either Panavia V5 or ResiCem
EX. A total of 24 discs were prepared from each material, with 12 specimens allocated
to each group (10 tested bond strength and 2 microscopy). The bonding interfaces were
examined using a digital optical microscope. Shear bond strength was measured using
an Instron universal testing machine, and statistical analysis was performed using
one-way and two-way ANOVA.
Results
The highest shear bond strength was observed in 3D-printed composite resin bonded
with Panavia V5 (20.74 MPa), which was significantly higher than zirconia bonded with
ResiCem EX (13.9 MPa, p = 0.010). No significant differences were noted between the remaining material–cement
combinations.
Conclusion
3D-printed composite resin demonstrated superior bond strength compared with zirconia
and E-max; Panavia V5 showed potential as a reliable cement for clinical applications.
These findings support the growing role of 3D-printed composites in restorative dentistry.
Keywords
zirconia - E-max - 3D-printed composites - shear bond strength - Panavia V5 - ResiCem
EX - dental restorations
