Abstract
Three-dimensionally (3D)-printed dentures are becoming more popular due to reduced waste during manufacturing. However, their repairability is still questionable. Various repair methods have been tested for conventionally processed dentures, but information is limited on whether the same principles apply to 3D-printed dentures.
Therefore, the aim of this in-vitro study was to investigate the effects of different surface treatments: bur roughening (control), chemical primer application and sandblasting on the flexural strength (FS) of repaired 3D-printed denture bases under artificial ageing.