Conventional Versus 3D Printing Duplication Techniques of Complete Denture

NCT06588140 | Completed

• 1 other identifier: FDASU-Rec IR032421
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

Denture,Complete; Edentulous Alveolar Ridge

Keywords

CAD-CAM; Complete Dentures; Copying , Denture

Outcome Measures

Primary Outcomes (1)

• Assessment of Retention of maxillary complete denture

  The retention of a maxillary complete denture will be assessed using a digital force gauge meter, with retention measurements recorded in Newtons.

  at the time of denture insertion

Secondary Outcomes (1)

• Evaluation of occlusal force distribution between right and left side

  at the time of denture insertion

Study Arms (3)

conventional heat-cured duplication technique.

ACTIVE COMPARATOR

Duplication of refitted complete removable dentures by conventional heat-cured technique from heat-cured polymethyl methacrylate resin.

Device: Duplicated refitted complete denture made from conventionally heat-cured polymethyl methacrylate.

3d Printed CAD/CAM duplication technique from Pink polymethyl methacrylate base resin

EXPERIMENTAL

Duplication of a refitted complete removable denture will be produced using a 3D-printed CAD/CAM technique where the denture base will be printed separately using pink base polymethyl methacrylate resin, and the teeth will be printed as one unit using tooth-colored resin, followed by assembling the two components.

Device: Duplicated refitted complete denture made from 3D-printed CAD/CAM pink polymethylmethacrylate acrylic resin.

3d Printed CAD/CAM duplication technique from white polymethyl methacrylate base resin

EXPERIMENTAL

Duplication of a refitted complete removable denture will be produced using a 3D-printed CAD/CAM technique where the denture will be printed as a single unit using tooth-colored resin, and the denture flange will be veneered with pink resin.

Device: Duplicated refitted complete denture made from 3D-printed CAD/CAM white polymethylmethacrylate acrylic resin.

Interventions

Duplicated refitted complete denture made from conventionally heat-cured polymethyl methacrylate. DEVICE

The duplication of a refitted complete removable denture will be performed using conventional heat-cured polymethyl methacrylate through the conventional heat-cured polymerization technique.

conventional heat-cured duplication technique.

Duplicated refitted complete denture made from 3D-printed CAD/CAM pink polymethylmethacrylate acrylic resin. DEVICE

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.

3d Printed CAD/CAM duplication technique from Pink polymethyl methacrylate base resin

Duplicated refitted complete denture made from 3D-printed CAD/CAM white polymethylmethacrylate acrylic resin. DEVICE

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.

3d Printed CAD/CAM duplication technique from white polymethyl methacrylate base resin

Eligibility Criteria

• Age: 50 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients with old complete dentures without lost vertical dimension.
• Patients with correct centric occluding relation.
• The dentures should be esthetically and functionally satisfactory and exhibit reasonable retention and stability

You may not qualify if:

• The presence of ridge or soft tissue pathology.
• Diminished saliva production.
• A history of medications affecting saliva quantity or quality.
• Patients with temporomandibular joint problems.
• The presence of sever ridge undercut.
• Debilitated patients

Sponsors & Collaborators

• Ain Shams University: lead

Study Sites (1)

Ain Shams University

Cairo, 12345, Egypt

Location

Study Officials

• Amany M Saad Farahat, PHD

  Ain Shams Univeristy

  PRINCIPAL INVESTIGATOR

• Yasmine S Elsherbeeny, PHD

  Ain Shams Univeristy

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer of Oral and Maxillofacial Prosthodontics

Study Record Dates

• First Submitted: September 5, 2024
• First Posted: September 19, 2024
• Study Start: September 1, 2024
• Primary Completion: October 1, 2024
• Study Completion: November 1, 2024
• Last Updated: March 6, 2025

Record last verified: 2025-03

Locations

EG (1)