Accuracy of 3D Printed Complete Dentures Using Two Impression Techniques: RCT

Retention of 3D Printed Bases Using Prefabricated Thermoplastic Trays and Conventional Custom Impression Trays: Randomized Controlled Trial

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04982510

Enrollment

Registered

2021-07-29

Start date

2021-08-01

Completion date

2023-06-27

Last updated

2024-02-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Edentulism Nos

Keywords

digital dentures, definitive impression, thermoplastic trays, printed denture, 3D, rapid prototyping

Brief summary

the aim of this crossover randomized controlled clinical trial is comparing retention of 3D printed maxillary complete dentures produced from thermoplastic impression trays and conventional acrylic impression trays. The research hypothesis is that there is no difference in patient satisfaction and retention of dentures constructed from definitive impression using the conventional tray and the prefabricated thermoplastic tray

Interventions

DEVICEcomplete denture

3D printed complete denture

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

TREATMENT

Masking

DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

MALE

Age

No minimum to 69 Years

Healthy volunteers

Yes

Inclusion criteria

* Male edentulous patients. * Cooperative and highly motivated patients. * Patients with well or moderately developed ridges and healthy attached mucosa of appropriate thickness free from inflammation

Exclusion criteria

* Patients with recent extraction less than 3 months ago * Patients with Parkinson's disease * Patients with xerostomia. * Patients with allergy to resins. * Pathological changes of residual ridges. * Patient with sever undercuts, or irregular bony exostosis. * Patients with flabby and flat ridges. * Patients with medical or psychological conditions that hinder co-operation. * Patients with class II or III jaw relation.

Design outcomes

Primary

Measure	Time frame	Description
Maxillary complete denture base retention	2 weeks after denture insertion	A loop will be attached to each denture base at the position of geographic center using self cure acrylic resin and the retention will be measured by applying the forces perpendicular to the denture using Digital Force Meter Each base will be tested 3 times and the average will be calculated.

Secondary

Measure	Time frame	Description
Patient satisfaction	2 weeks	patient satisfaction data will be collected through questionnaire and graded by Visual analogue scale for both study arms

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026