Trials / Completed
CompletedNCT06146153
Intra Oral Scanning of Edentulous Arches
Impact of Various Palatal Vault Configurations of Edentulous Arches on Scan Accuracy. An Invivo Clinical Study
- Status
- Completed
- Phase
- —
- Study type
- Observational
- Enrollment
- 30 (actual)
- Sponsor
- October University for Modern Sciences and Arts · Academic / Other
- Sex
- All
- Age
- 50 Years – 75 Years
- Healthy volunteers
- Accepted
Summary
the aim of this study is to compare the influence of different palatal vault configurations on the accuracy and scan speed of IO scans in cases of completely edentulous arches. The null hypothesis is that there is no difference in scanning time, and trueness and precision of IO scans between class I, II and III palatal vault configurations.
Detailed description
A reference model will be created for each of the three groups with different palatal vault configurations. PVS material (DMG Silagum, Germany) will be used for impressions in a one-step process by an experienced operator, and type IV plaster (Heraeus, Germany) will be used to produce the models. These models will then bedigitized by an experienced operator using an extraoral scanner (Trios 3; 3Shape, Copenhagen, Denmark). The STL scan file of the maxillary model will be imported into CAD software (Meshmixer; Autodesk, San Rafael, CA, USA) to generate a reference file. Reference markers will then be added to the digital files to aid the superimposition process during digital subtraction operations.For intraoral scans, the entire maxilla of each patient will be digitally captured using an intraoral scanner (TRIOS POD, 3Shape, Copenhagen, Denmark).According to ISO standards, specifically ISO 5725-1, the accuracy of digital impressions obtained with intraoral scanners (IOS) will be evaluated according to two main parameters: trueness and precision.
Conditions
Interventions
| Type | Name | Description |
|---|---|---|
| DIAGNOSTIC_TEST | digital impression | intra oral scanning |
Timeline
- Start date
- 2023-11-01
- Primary completion
- 2024-01-01
- Completion
- 2024-01-15
- First posted
- 2023-11-24
- Last updated
- 2024-04-02
Locations
1 site across 1 country: Egypt
Source: ClinicalTrials.gov record NCT06146153. Inclusion in this directory is not an endorsement.