Accuracy of Complete-Arch Implant Photogrammetry
13 septembre 2026 mis à jour par: Mohammed El-Sawy, Menoufia University
Accuracy of Complete-arch Implant Scans Obtained Using Intraoral Photogrammetry and a Mobile-phone Based Photogrammetry.
This prospective comparative clinical study evaluated the accuracy and chairside time of complete-arch implant scans obtained using an intraoral photogrammetry system and a mobile-phone-based photogrammetry system in edentulous patients rehabilitated with complete-arch implant-supported prostheses.
Implant positions recorded by each system were compared with a reference dataset to assess linear and angular discrepancies.
The chairside time required for data acquisition was also measured.
The study aimed to determine whether mobile-phone-based photogrammetry can provide clinically acceptable accuracy comparable to that of intraoral photogrammetry while improving clinical efficiency.
The findings may help clinicians select appropriate digital impression techniques for complete-arch implant rehabilitation.
Aperçu de l'étude
Statut
Complété
Les conditions
Intervention / Traitement
Description détaillée
Accurate recording of implant positions is essential for the passive fit and long-term success of complete-arch implant-supported prostheses. Photogrammetry-based technologies have emerged as promising alternatives to conventional digital impression techniques for capturing implant positions with high accuracy. While intraoral photogrammetry systems have demonstrated favorable results, the clinical performance of recently introduced mobile-phone-based photogrammetry systems remains insufficiently investigated.
This prospective comparative clinical study aims to evaluate the accuracy and chairside time of complete-arch implant scans obtained using an intraoral photogrammetry system and a mobile-phone-based photogrammetry system in edentulous patients restored with complete-arch implant-supported prostheses. Each participant will undergo implant scanning using both systems according to the manufacturers' recommendations. The resulting digital datasets will be compared with a reference dataset to determine scan accuracy.
The primary outcome measures will be linear and angular discrepancies between the implant positions captured by each photogrammetry system and the reference dataset. Secondary outcome measures will include the chairside time required for scan acquisition. Statistical analyses will be performed to compare the accuracy and efficiency of the evaluated systems.
Type d'étude
Observationnel
Inscription (Réel)
24
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
-
-
Menoufia
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Shibīn al Kawm, Menoufia, Egypte, 2266166
- Mohammed El-Sawy
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
Accepte les volontaires sains
N/A
Méthode d'échantillonnage
Échantillon non probabiliste
Population étudiée
The study population will consist of adult completely edentulous patients who have been rehabilitated with implant-supported complete-arch prostheses.
Eligible participants will present with a fully edentulous arch restored by at least four osseointegrated dental implants and will be recruited from patients seeking prosthodontic treatment and follow-up care at the study center.
All participants will undergo complete-arch implant scanning using both an intraoral photogrammetry system and a mobile-phone-based photogrammetry system for comparative evaluation of scan accuracy and chairside acquisition time.
Only patients meeting the predefined inclusion criteria and providing written informed consent will be enrolled.
La description
Inclusion Criteria:
- Adults aged 18 years or older.
- Completely edentulous patients rehabilitated with implant-supported complete-arch prostheses.
- Presence of at least four osseointegrated implants in the edentulous arch.
- Patients able to undergo digital implant scanning procedures.
- Patients willing to participate and provide written informed consent.
Exclusion Criteria:
- Patients with unstable or failed implants.
- Presence of peri-implant disease, active oral infection, or significant soft-tissue inflammation around the implants.
- Inadequate access for placement of photogrammetry scan bodies or markers.
- Patients with conditions that prevent proper scanning procedures (e.g., inability to maintain mouth opening or remain still during data acquisition).
- Patients requiring immediate implant placement or immediate loading protocols.
- Patients unwilling or unable to provide informed consent.
- Incomplete clinical records or inability to complete all study procedures.
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Intraoral Photogrammetry (IPG)
Participants will undergo complete-arch implant scanning using an intraoral photogrammetry system (IPF Elite, Shining 3D).
Implant positions will be digitally recorded according to the manufacturer's instructions.
Linear and angular discrepancies relative to the reference dataset, as well as chairside scanning time, will be evaluated.
|
A photogrammetry-based digital impression system used to capture the three-dimensional positions of implants in complete-arch rehabilitations.
The system records implant locations through specialized scan bodies and generates a digital dataset for subsequent accuracy analysis.
Autres noms:
|
|
Mobile-Phone-Based Photogrammetry
Participants will undergo complete-arch implant scanning using a mobile-phone-based photogrammetry system (T-Marker).
Implant positions will be digitally recorded according to the manufacturer's instructions.
Linear and angular discrepancies relative to the reference dataset, as well as chairside scanning time, will be evaluated.
|
A smartphone-assisted photogrammetry system used to capture the three-dimensional positions of implants in complete-arch rehabilitations.
The system acquires photographic data through coded markers and generates a digital dataset for subsequent accuracy analysis.
Autres noms:
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Linear Discrepancy of Complete-Arch Implant Scans
Délai: Immediately after scan acquisition and digital analysis (same study visit).
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Assessment of the linear deviation (μm) between implant positions captured using intraoral photogrammetry and mobile-phone-based photogrammetry systems and those recorded in the reference dataset.
Lower values indicate greater accuracy.
|
Immediately after scan acquisition and digital analysis (same study visit).
|
Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Mohammed A. El-Sawy, PhD, Menoufia University
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Réel)
1 janvier 2026
Achèvement primaire (Réel)
1 juin 2026
Achèvement de l'étude (Réel)
1 août 2026
Dates d'inscription aux études
Première soumission
7 juin 2026
Première soumission répondant aux critères de contrôle qualité
7 juin 2026
Première publication (Réel)
11 juin 2026
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
16 septembre 2026
Dernière mise à jour soumise répondant aux critères de contrôle qualité
13 septembre 2026
Dernière vérification
1 septembre 2026
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- R.26.125
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
NON
Description du régime IPD
Up on resonable request from the corresponding author
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Non
Étudie un produit d'appareil réglementé par la FDA américaine
Non
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