# Effectiveness of Aligners Versus Rapid Maxillary Expansion

> **NCT04760535** · NA · COMPLETED · sponsor: **University of Turin, Italy** · enrollment: 40 (actual)

## Conditions studied

- Maxillary Transverse Deficiency (MTD)

## Interventions

- **DEVICE:** Invisalign® First Phase I treatment (Align Technology, Inc., Santa Clara, CA, USA)
- **DEVICE:** Tooth-borne Hyrax-type maxillary expander

## Key facts

- **NCT ID:** NCT04760535
- **Lead sponsor:** University of Turin, Italy
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-01-15
- **Primary completion:** 2020-10-15
- **Final completion:** 2021-05-03
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2022-05-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04760535

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04760535, "Effectiveness of Aligners Versus Rapid Maxillary Expansion". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04760535. Licensed CC0.

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