# Comparison of Two Miniscrew Bone-borne Expanders (2 vs 4 Screws) Versus Conventional Hyrax Expander in Adolescents

> **NCT07404488** · NA · COMPLETED · sponsor: **University of Roma La Sapienza** · enrollment: 36 (actual)

## Conditions studied

- Orthodontic Appliance

## Interventions

- **DEVICE:** Miniscrew supported expander application
- **DEVICE:** 4 miniscrews supported rapid maxillary expansion application
- **DEVICE:** Conventional tooth-borne Hyrax expander (comparator)

## Key facts

- **NCT ID:** NCT07404488
- **Lead sponsor:** University of Roma La Sapienza
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-11-01
- **Primary completion:** 2024-09-01
- **Final completion:** 2024-09-01
- **Target enrollment:** 36 (ACTUAL)
- **Last updated:** 2026-02-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07404488

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07404488, "Comparison of Two Miniscrew Bone-borne Expanders (2 vs 4 Screws) Versus Conventional Hyrax Expander in Adolescents". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT07404488. Licensed CC0.

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