# The Reliability and Validity of Little's Irregularity Index Assessment

> **NCT07745855** · — · COMPLETED · sponsor: **Al-Azhar University** · enrollment: 20 (actual)

## Conditions studied

- Dental Crowding
- Malocclusion, Angle Class I

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT07745855
- **Lead sponsor:** Al-Azhar University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-06-01
- **Primary completion:** 2023-12-30
- **Final completion:** 2024-12-30
- **Target enrollment:** 20 (ACTUAL)
- **Last updated:** 2026-08-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07745855

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07745855, "The Reliability and Validity of Little's Irregularity Index Assessment". Retrieved via MORVS 2026-10-20 from https://api.morvs.ai/clinical/NCT07745855. Licensed CC0.

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