Last reviewed · How we verify
NCT07370701
Passivity of Full-Arch Co-Cr Maxillary Prostheses Using IOS
NA trial testing Open tray impression technique in Passivity of Co-Cr Full-arch Maxillary Prostheses Via IOS in 7 participants. Completed in 5 September 2025.
5 March 2025
Quick facts
| Lead sponsor | Ain Shams University |
|---|---|
| Phase | NA |
| Status | Completed |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | crossover |
| Masking | double |
| Primary purpose | diagnostic |
| Enrollment | 7 |
| Start date | 8 June 2023 |
| Primary completion | 5 March 2025 |
| Estimated completion | 5 September 2025 |
| Sites | 1 location across Egypt |
Drugs / interventions tested
- Open tray impression technique
- Auxiliary Geometric Device (M600)
- Auxiliary Geometric Device (PS)
Conditions studied
- Passivity of Co-Cr Full-arch Maxillary Prostheses Via IOS — all drugs for Passivity of Co-Cr Full-arch Maxillary Prostheses Via IOS →
Sponsor
Ain Shams University
Who can join
Adults 50 to 70, any sex, with Passivity of Co-Cr Full-arch Maxillary Prostheses Via IOS. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Statement of the problem: Accurate digital scans of edentulous patients is challenging due to the absence of anatomic landmarks and geometric variations along the dental arch. Whether adding an auxiliary geometric device (AGD) will improve scanning is unclear. Purpose: The aim of the study is to analyze the accuracy of complete-arch digital scans of completely edentulous arches by placing auxiliary geometric device. Material and Methods: This in vivo study included patients who received complete arch screw-retained prostheses supported by 4 implants. Seven patients were randomly chosen; a dual scan protocol was performed for digital implant planning. Surgical guide and AGD were 3d printed. Three different data acquisition methods for each individual: Open tray impression digitized by extraoral scanner (EO Group), Intraoral scan by using Medit i600 with AGD (M600 Group), and Intraoral scan (CEREC Primescan; Dentsply Sirona) with AGD (PS Group). A reference model was formed to check the accuracy of these 3 data acquisitions. The framework was designed and printed for the 3 groups to be placed in the reference model to check the passivity. Passivity was tested through modified 1-screw test by measuring the marginal gap by using a digital camera (add magnification). Each framework was placed in the patient's mouth to re-check the passivity, the best one was delivered to the patient after 4 months after osteointegration of the implants.
Publications & conference data
No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.
Verify or expand the search:
- PubMed search for NCT07370701
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
Related trials
Other Ain Shams University trials
Trials by the same sponsor.
- NCT07435493 — Fentanyl Versus Opioid Free Multimodal Analgesia for Perioperative Pain Control in Children With Mild to Moderate Obstru · NA · not yet recruiting
- NCT07482540 — Role of Dexmedatomidine Drug in Prevention of Atrial Fibrillations Post Mitral Valve Surgery · NA · not yet recruiting
- NCT07531030 — Posterior Pericapsular Deep Gluteal Block Combined With Pericapsular Nerve Group and Lateral Femoral Cutaneous Nerve Blo · NA · not yet recruiting
- NCT06839027 — Arterial to Central co2gap in Relation to Outcome After Cardiopulmonary Bypass · not yet recruiting
- NCT07516535 — DISS vs FANS in Suction-Assisted RIRS for Medium-Sized Renal Stones · NA · not yet recruiting
Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT07370701 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Ain Shams University
- Last refreshed: 27 January 2026
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT07370701.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing