Completed NA INTERVENTIONAL 3-arm NCT02868957

Repetition Improves Precision and Trueness of Digital Intraoral Scans

Standardization of Evaluation Protocol for the Performance Comparison of Digital Intra-oral Scanners

Sponsor: Seoul National University Gwanak Dental Hospital

Interventions Trios iTero impression data from reference scanner

Updated 6 times since 2017 Last updated: Aug 15, 2016 Started: Jan 31, 2014 Primary completion: Aug 31, 2014 Completion: Oct 31, 2014

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This NA trial investigates Tooth Diseases and is currently completed. Seoul National University Gwanak Dental Hospital leads this study, which shows 6 recorded versions since 2014 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

6 versions recorded

Sep 2025 — Present [monthly]

Completed NA
Sep 2024 — Sep 2025 [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Jan 2021 — Jul 2024 [monthly]

Completed NA
Jun 2018 — Jan 2021 [monthly]

Completed NA

▶ Show 1 earlier version

Jan 2017 — Jun 2018 [monthly]

Completed NA

First recorded

Jan 2014

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Seoul National University Gwanak Dental Hospital

Data source: Seoul National University Gwanak Dental Hospital

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Seoul, South Korea