Denture Retention of Intra-orally Scanned Versus Extra-orally Scanned Digitally Printed Maxillary Denture in Completely Edentulous Patients

NCT07290322 | Active Not Recruiting

• 1 other identifier: 21-12-2023
• Study Type: interventional
• Target: 8
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this clinical trial is to evaluate denture retention in intra-orally scanned versus extra-orally scanned digitally printed maxillary dentures in completely edentulous patients. The main question is : 1. Do intra-orally scanned dentures provide better retention compared to extra-orally scanned dentures? Researchers will compare the intra-orally scanned denture group to the extraorally scanned denture group to determine if one method leads to superior retention records. Participants will: • Receive both types of dentures (intra-orally scanned and extra-orally scanned), with a three-week wash-out period between each intervention. The study aims to provide evidence on the optimal scanning method for digitally printed maxillary dentures in edentulous patients.

Conditions

Complete Edentulism

Keywords

Intraoral scanning; Extra oral scaning; Complete edentulism; Digital; denture retention

Outcome Measures

Primary Outcomes (1)

• Denture Retention

  the patient is observed for three weeks as awash_out period after each type of scan so that i can compare the denture retention across those periods

Study Arms (2)

Intra-Orally Scanned Dentures

EXPERIMENTAL

Participants in this arm will recieve maxillary dentures fabricated using intraoral scanning technology . digital impressions of the oral cavity will be captured directly using the 3 shape trios intraoral scanner, eliminating the need for conventional impression materials , these digital impressions will be used to design and 3D print the dentures , which will then be fitted and evaluated for retention .

Device: extraorally scanned methods

Extra-Orally Scanned Dentures

ACTIVE COMPARATOR

Participants in this arm will recieve maxillary dentures fabricated using extraoral scanning technology . conventional impressions of the oral cavity will first be taken using traditional impression material , these impressions will then be scanned externally using the 3Shape scanner to create digital models . these digital models will be used to design and 3D print the dentures , which will then be fitted and evaluated for retention .

Device: Intaorally scanned methods

Interventions

Intaorally scanned methods DEVICE

the intraoral scanning method involves capturing digital impressions of the oral cavity directly using the 3 shape scanner . this method eliminates the need for traditional impression material providing a more comfortable and precise imaging process , the digital impressions are the utilized to design and fabricate maxillary dentures using 3D printing technology . the intervention focuses on evaluating denture's retention

Extra-Orally Scanned Dentures

extraorally scanned methods DEVICE

The extra-oral scanning method involves creating conventional impressions of the oral cavity using traditional impression materials. These impressions are then scanned externally using the 3Shape scanner to produce digital models. The digital models are used to design and fabricate maxillary dentures through 3D printing technology. This intervention aims to assess denture retention

Intra-Orally Scanned Dentures

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• completely edentulous patients
• Angle's class I Skeletal relationship
• normal facial symmetry
• comparative patients

You may not qualify if:

• tempromandibular disorders
• uncontrolled diabetes
• patients with neuromuscular disorders
• severe psychiatric disorders
• angle's class II and III skeletal relationship

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Cairo university

Giza, 12511, Egypt

Location

Related Publications (1)

• 1-Comparative Accuracy of Intraoral and Extraoral Digital Scanners by MA Mansoor et al., published in the Journal of Prosthetic Dentistry in 2024. 2.The Accuracy of Intraoral Scan in Obtaining Digital Impressions of Edentulous Jaws by Y Wang et al., published in the Journal of Prosthetic Dentistry in 2024. 3.Comparison of Intraoral and Extraoral Digital Scanners: Evaluation of Surface Topography and Precision, published on ResearchGate in 2020. 4.Effect of Different Scanning Protocols on the Retention of Complete Dentures by SM Fadl et al., published in the Egyptian Dental Journal in 2023.

  RESULT

Related Links

• This study, titled "Effect of Different Scanning Protocols on the Retention of Duplicated Maxillary Complete Dentures," investigates how various scanning techniques influence the retention and fit of maxillary complete dentures. It provides insights into

Study Officials

• Rehab R Abdalla

  Cairo University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Masters student

Study Record Dates

• First Submitted: December 5, 2025
• First Posted: December 18, 2025
• Study Start: December 3, 2024
• Primary Completion (Estimated): September 1, 2026
• Study Completion (Estimated): September 1, 2026
• Last Updated: December 18, 2025

Record last verified: 2025-12

Locations

EG (1)