An interventional study of Digital impression using intraoral scanner and Digital impression using intraoral photogrammetry in Complete Edentulism, sponsored by Aldent University. Completed at 1 site in Albania. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-10-21.
Sponsored by Aldent University · Not applicable, Interventional, and Treatment
This clinical study evaluates and compares the accuracy (trueness and precision) of intraoral photogrammetry and intraoral scanning for complete-arch implant-supported prostheses in patients initially treated according to All-on-4 or All-on-6 concepts. Conventional impressions serve as the reference for assessing trueness. One patient initially treated with six implants lost one implant before impression acquisition and was therefore evaluated with five remaining implants.
The study aims to evaluate and compare two digital impression techniques, intraoral scanning and intraoral photogrammetry methods in terms of precision, accuracy (using conventional impression technique as reference), and passive fit of complete-arch implant supported restorations. The trial is an in vivo comparative study with direct 3D deviation analysis and evaluation.
This is the only study on the registry with Aldent University as lead sponsor.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Digital scanning of edentulous arches using intraoral scanner (Aoralscan Elite, Shining 3D)
Procedure: Digital impression using intraoral scanner
Digital scanning of edentulous arches using intraoral photogrammetry (Aoralscan Elite, Shining 3D)
Procedure: Digital impression using intraoral photogrammetry
Conventional impression of complete- arch edentulous patients
Procedure: Conventional impression
Digital impression of complete- arch edentulous patients using intraoral scanner
Digital impression of complete-arch edentulous patients using intraoral photogrammetry
Conventional impression of complete-arch edentulous patients
Digital impressions of all the enrolled patients
STL files of digital impressions, intraoral scanning and photogrammetry , of all the enrolled patients.
Time frame: After 3 months from implant placement for all the enrolled patients
Virtual analyses of implant positions
Three dimensional positional deviation for each abutment analog , as well as distance and angular deviations between all pairs of abutment analogs captured by intraoral scanning vs. intraoral photogrammetry digital impression - measured using metrology software (Geomagic Control X)
Time frame: Within 3 months from digital impression
Plan to share: Yes — Study Protocol
Supporting information: Study protocol
Time frame: The full study protocol will be made available beginning 1 year after publication of the primary results in a peer-reviewed journal and ending 2 years after the publication of results.
Access criteria: The full study protocol will be shared upon reasonable request to qualified researchers . Requests should be submitted to the principal investigator via institutional email. Data will be provided after approval of the proposal and completion of a data agreement to ensure appropriate use of the data. Shared files will be transmitted through a secure institutional repository.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
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