The Effect of Different Surface Treatments on the Repair of 3D Permanent Resin Restorations by Composite Resin Different surface treatments and repair of 3D permanent resin

Abstract

Purpose: The repairability of ceramic containing 3D printed materials has not yet been investigated. This study aimed to compare the repair bond strength of permanent resin blocks with composite by applying different intraoral surface treatments after aging in water.Methods: The study material comprised thirty-five 3D printing cubes, which were aged in 10,000 thermocycles. Surface treatments were applied to the seven groups as A. Negative control (untreated) B. Positive control C. Phosphoric acid D. Er,Cr;YSGG laser E. Sandblasting F. Hydrofluoric acid, and G. Burr abrasion followed by multi-primer and universal bond. The best 1×1×12 mm sticks were tested on a universal testing machine. Data were analyzed using one-way ANOVA and the Duncan test.Results: The negative control group reached a significantly lower micro tensile bond strength than the laser and sandblasting groups (p≤ 0.05). The repair bond strength of the positive control group didn’t differ significantly from that of the other experimental groups (p=0.374).Conclusion: The bonding strength of composite resin hasn’t shown a statistically significant difference when different surface treatments were applied to 3D-printed resin. It can be concluded that it is possible to make small repairs of 3D printed permanent restorations with the application of primer and bond.

Effect of Adhesion Conditions on the Shear Bond Strength of 3D Printing Resins after Thermocycling Used for Definitive Prosthesis

“…This approach significantly reduces the time and labor required in clinical and laboratory procedures compared to conventional methods [ 1 , 5 , 6 , 7 , 8 ]. Given these advantages, 3D printing resin materials for long-term definitive prostheses have been developed [ 9 , 10 ], and research on 3D printing materials is underway [ 2 , 11 , 12 ].…”