Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Accuracy of Complete-Arch Implant Photogrammetry

7. juni 2026 opdateret af: 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.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

42

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

N/A

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

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.

Beskrivelse

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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
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.
Enhed: Intraoral Photogrammetry (IPG)
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.
Andre navne:
  • IPF Elite; Shining 3D; Intraoral Photogrammetry System
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.
Enhed: Mobile-Phone-Based Photogrammetry
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.
Andre navne:
  • T-Marker; Extraoral Photogrammetry; Mobile-Phone-Based Photogrammetry System

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Linear Discrepancy of Complete-Arch Implant Scans
Tidsramme: Immediately after scan acquisition and digital analysis (same study visit).
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).

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Menoufia University

Samarbejdspartnere

Mansoura University

Efterforskere

  • Ledende efterforsker: Mohammed A. El-Sawy, PhD, Menoufia University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. januar 2026

Primær færdiggørelse (Anslået)

1. august 2026

Studieafslutning (Anslået)

1. august 2026

Datoer for studieregistrering

Først indsendt

7. juni 2026

Først indsendt, der opfyldte QC-kriterier

7. juni 2026

Først opslået (Faktiske)

11. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

11. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • ADMNF-000026

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Up on resonable request from the corresponding author

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Edentuous kæbe

Kliniske forsøg med Intraoral Photogrammetry (IPG)

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Myanmar

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner