# Speed of Premolar Extraction Space Closure: Every Visit Replacement of Working Archwire

> **NCT04549987** · NA · COMPLETED · sponsor: **Jordan University of Science and Technology** · enrollment: 28 (actual)

## Conditions studied

- Orthodontic Appliance

## Interventions

- **DEVICE:** Space closure without changing working archwire monthly
- **DEVICE:** Space closure withchanging working archwire monthly

## Key facts

- **NCT ID:** NCT04549987
- **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:** 2020-08-31
- **Target enrollment:** 28 (ACTUAL)
- **Last updated:** 2020-09-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04549987

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04549987, "Speed of Premolar Extraction Space Closure: Every Visit Replacement of Working Archwire". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04549987. Licensed CC0.

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