Comparing 3D-Printed Hybrid Resin and CADCAM Composite for Indirect Restorations in Root Canal Treated Molars Evaluating Two Adhesive Cementation Methods in a Randomized Clinical Trial

What this Trial Is About

Researchers are evaluating the clinical performance of a 3D-printed hybrid resin called VarseoSmile TriniQ for indirect restorations in endodontically treated molars, comparing it with a traditional CADCAM composite block named Cerasmart. This study also compares two adhesive luting methods using a preheated microhybrid composite resin Enamel Plus HRi and a resin cement RelyX Universal. The trial aims to provide evidence on the effectiveness of these new materials and cementation techniques in dental restorations. Participants will be randomly assigned to one of four groups based on the combination of restorative material and luting protocol. Restorations are created through a digital workflow involving intraoral scanning, CAD design, and either 3D printing or milling. Adhesive cementation is done under rubber dam isolation following standardized clinical procedures. The study includes baseline and follow-up evaluations at 3, 6, and 12 months, with annual assessments afterward. During the study, participants will have clinical check-ups to assess restoration success using modified United States Public Health Service criteria. Researchers will evaluate factors such as marginal adaptation, contact stability, color stability, wear, fractures, secondary caries, and patient comfort. Follow-ups continue annually to monitor restoration survival. The total duration of involvement depends on each participants follow-up schedule, with detailed clinical and patient-reported outcomes collected throughout.

Clinical Performance of Printed Hybrid Resin in Indirect Restorations