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Intraoral Scan Versus Conventional Impression in Edentulous Patients With Flabby Ridges

Accuracy Assessment of Intraoral Scan Versus Conventional Impression in Edentulous Patients With Flabby Ridges: A Prospective Clinical Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07037407
Enrollment
12
Registered
2025-06-25
Start date
2024-10-18
Completion date
2025-04-24
Last updated
2025-06-25

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

Conditions

Edentulism, Edentulous Alveolar Ridge, Edentulous Alveolar Ridge With Labial Resorption, Flabby Ridge

Keywords

Flabby ridge, IOS

Brief summary

In vivo prospective clinical study will be designed, 12 participants will be included. After intraoral scanning, a conventional impression is made for each patient. The groups will be compared for accuracy.

Detailed description

* Recruit 12 eligible edentulous patients * Scanning Process: Perform five intraoral scans (IOS) of the maxillary flabby ridges for each patient. . WTI: perform five WTI for each patient * STL Export: Export scans and corresponding cast scans obtained via the Window Technique Impression (WTI) as STL files using the intraoral scanner software. * 3D Distance Measurement: Import IOS and cast STL files into Geomagic Wrap 2017 for a two-phase best-fit alignment, using the Cast scan as the reference for evaluating trueness and precision. * Comparison of Scans: * Compare the IOS scan and corresponding cast scan obtained via the Window Technique Impression (WTI) to calculate trueness -compare WTI and corresponding cast scan obtained via the Window Technique Impression (WTI) to calculate trueness- * Compare each of the five IOS impressions by using each scan as a reference against the others to calculate precision. * Compare each of the five WTI impressions by using each scan as a reference against the others to calculate precision. • Deviation Analysis: Generate a color difference map of each superimposition for visual analysis of deviation patterns.

Interventions

PROCEDUREIOS

Intra oral scanning

PROCEDUREWTI

window technique Impression

Sponsors

October University for Modern Sciences and Arts
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
50 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Inclusion criteria for participant selection will be as follows: 1. completely edentulous patients with maxillary flabby ridge; 2. Absence of infectious diseases; 3. Systemic good health (ASA-1/ASA-2). .; 4. Age between 50 and 75 years; 5. Willingness to cooperate throughout the data collection process.

Design outcomes

Primary

MeasureTime frameDescription
accuracy evaluation1 monthAccuracy Evaluation: The accuracy of the digital impressions versus conventional impression based on trueness and precision will be evaluated. \- Trueness: Trueness is the degree of agreement between the digital impression and the reference scan. To assess trueness, we will measure the deviation between the reference and scanned files. Precision: Precision is a statistical measure that quantifies the level of similarity between repeated samples within the same group. In the context of this study, the IOS impression STL files will be compared to each other in a manner similar to the previous comparisons

Countries

Egypt

Outcome results

None listed

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