Effects of Surface Textures Created Using Additive Manufacturing on Shear Bond Strength Between Resin and Zirconia.
J Adhes Dent
; 26(1): 79-86, 2024 Jan 15.
Article
in En
| MEDLINE
| ID: mdl-38465402
ABSTRACT
PURPOSE:
This investigation aimed to assess the impact of additive manufacturing-generated surface textures on zirconia bond strength. MATERIALS ANDMETHODS:
Zirconia samples (n = 144) fabricated using digital light-processing (DLP) technology were categorized into 6 groups according to the type of surface conditioning (group NN no designs, no air abrasion; group NY no designs, with air abrasion; group GN groove designs, no air abrasion; group GY groove designs with air abrasion; group HN hexagon grid, no air abrasion; group HY hexagon grid, with air abrasion). Composite resin cylinders were cemented to the treated zirconia surfaces with dual-curing, self-adhesive resin cement (Clearfil SA Luting). The shear bond strength (SBS) was tested after water storage for 3 days or 3 days with an additional 10,000 thermocycles.RESULTS:
The zirconia samples fabricated using DLP technology have high accuracy. The SBS of the NY, GY, and HY groups did not significantly differ after 3 days, and neither did the SBS of the NN, GN, and HN groups. The NN, NY, and HY groups exhibited reduced SBS compared to their initial values following artificial aging, while the SBS of the remaining three groups were not diminished. The GY group obtained the highest SBS value after aging.CONCLUSION:
Printing grooves with air abrasion can improve the bond strength.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Dental Bonding
Language:
En
Journal:
J Adhes Dent
Journal subject:
ODONTOLOGIA
Year:
2024
Type:
Article