# Speed of Premolar Extraction Space Closure: Healed vs Recent Extraction Site

> **NCT04598490** · NA · COMPLETED · sponsor: **Jordan University of Science and Technology** · enrollment: 28 (actual)

## Conditions studied

- Orthodontic Appliance

## Interventions

- **DEVICE:** Space closure into old extraction space
- **DEVICE:** Space closure into recent extraction space

## Key facts

- **NCT ID:** NCT04598490
- **Lead sponsor:** Jordan University of Science and Technology
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-12-01
- **Primary completion:** 2019-09-01
- **Final completion:** 2020-08-01
- **Target enrollment:** 28 (ACTUAL)
- **Last updated:** 2021-10-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04598490

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04598490, "Speed of Premolar Extraction Space Closure: Healed vs Recent Extraction Site". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04598490. Licensed CC0.

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