NCT06588140

Conventional Versus 3D Printing Duplication Techniques of Complete Denture

Comparison of Retention Between Different Duplication Techniques of Complete Dentures: Conventional Versus CAD/CAM: A Within Subject Controlled Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: Ain Shams University · Academic / Other
• Sex: All
• Age: 50 Years – 65 Years
• Healthy volunteers: Accepted

Summary

Twenty completely edentulous patients with old, removable dentures with ill-fitting maxillary dentures, proper vertical dimension, and proper occlusion will be recruited for this trial. They will be rehabilitated with duplicated complete dentures manufactured by conventional and two different 3D-printed CAD-CAM Complete Removable Dentures techniques. Outcomes will be evaluated, including denture retention, which will be evaluated using a digital force gauge, and occlusal force distribution by using a t-scan.

Detailed description

The study will be conducted at the outpatient clinic of the Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, Ain Shams University. This within-subject controlled clinical trial will involve twenty completely edentulous patients with old, ill-fitting maxillary complete dentures, who will be selected and recruited following approval by the Research Ethics Committee of the Faculty of Dentistry, Ain Shams University (FDASU-REC). These patients will be rehabilitated with duplicated complete dentures produced through conventional methods and two distinct 3D-printed CAD/CAM techniques. Group I: The duplication of a refitted complete removable denture will be performed using the conventional heat-cured technique. Group II: The refitted complete denture will be duplicated using a 3D-printed CAD/CAM technique, where the denture base will be printed separately with pink resin, and the teeth will be printed as a single unit in tooth-colored resin, followed by assembly of the two components. Group III: The refitted complete denture will be duplicated using a 3D-printed CAD/CAM technique, with the entire denture printed as a single unit in tooth-colored resin, and the denture flange veneered with pink resin. Outcomes will be evaluated by measuring denture retention with a digital force gauge and occlusal force distribution using the T-Scan system. The collected data will be recorded, tabulated, and subjected to statistical analysis using appropriate tests for group comparisons.

Conditions

• Denture,Complete
• Edentulous Alveolar Ridge

Interventions

Type	Name	Description
DEVICE	Duplicated refitted complete denture made from conventionally heat-cured polymethyl methacrylate.	The duplication of a refitted complete removable denture will be performed using conventional heat-cured polymethyl methacrylate through the conventional heat-cured polymerization technique.
DEVICE	Duplicated refitted complete denture made from 3D-printed CAD/CAM pink polymethylmethacrylate acrylic resin.	The duplication of a refitted complete removable denture will be performed using a 3D-printed CAD/CAM technique, where the denture base is printed separately with pink polymethyl methacrylate resin, and the teeth are printed as a single unit using tooth-colored resin, followed by the assembly of the two components.
DEVICE	Duplicated refitted complete denture made from 3D-printed CAD/CAM white polymethylmethacrylate acrylic resin.	The duplication of a refitted complete removable denture will be performed using a 3D-printed CAD/CAM technique, where the denture base is printed as a single unit using tooth-colored resin, and the denture flange will be veneered with pink polymethyl methacrylate resin.

Timeline

• Start date: 2024-09-01
• Primary completion: 2024-10-01
• Completion: 2024-11-01
• First posted: 2024-09-19
• Last updated: 2025-03-06

Locations

1 site across 1 country: Egypt