# Early Orthodontic Treatment of Dental Crowding

> **NCT04756843** · NA · ACTIVE_NOT_RECRUITING · sponsor: **University of Helsinki** · enrollment: 60 (estimated)

## Conditions studied

- Dental Crowding

## Interventions

- **DEVICE:** Quad-helix

## Key facts

- **NCT ID:** NCT04756843
- **Lead sponsor:** University of Helsinki
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2022-11-18
- **Primary completion:** 2029-12
- **Final completion:** 2030-01
- **Target enrollment:** 60 (ESTIMATED)
- **Last updated:** 2025-07-08

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04756843

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04756843, "Early Orthodontic Treatment of Dental Crowding". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT04756843. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*
