Effect of adaptation time on retention of maxillary 3D printed denture versus conventional heat-cured acrylic denture: A randomized controlled trial

Objectives: The study aimed to investigate the effect of adaptation time on the retention of 3d printed versus conventional heat-cured acrylic maxillary complete dentures. Methods: 20 patients were distributed into: Group A received ten conventional complete heat cured acrylic dentures and Group B received ten printed complete dentures. Denture retention was measured at 0,1, and 3 months. Results: For acrylic denture and printed denture groups, Mean values in denture retention increased with time but this increase was statistically non-significant. The change in denture retention over time (difference in retention between the third month and at the time of insertion) in the printed denture group was more than that for the conventional denture group with statistically significant differences. Conclusions: 3D-printed and conventional dentures showed a non-significant retention increase over the 3-month follow-up period but the change in denture retention (increase in retention) was more for the printed denture group.