The Reliability and Validity of Little's Irregularity Index Assessment

Al-Azhar University20 enrolled

Overview

The primary aim of the current study was to estimate the validity, reliability, and repeatability of LII measurements

the primary aim of the current study was to estimate the validity, reliability, and repeatability of LII measurements made directly on digital models compared to those made on traditional plaster models. As a secondary aim, the same comparisons will also performed between digital photographs of study models and their corresponding plaster models.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Dental Crowding Malocclusion, Angle Class I

Eligibility

Sex: FEMALEMin age: 13 YearsMax age: 18 Years

Medical Language ↔ Plain English

Inclusion criteria: * Standardized study models for patients with a full set of permanent teeth (the third molars are not considered). * All study models for patients with Angle class I malocclusion. * All study models for patients with mild to moderate anterior teeth crowding in both arches * Corresponding standardized direct scanned intraoral digital models for all selected study models * Corresponding standardized digital photos for all selected study models * Corresponding standardized digital intra-oral photos for all selected study models Exclusion criteria: * Damaged or distorted study models * Unclear or distorted digital models (STL file) * Unclear or distorted digital photos of study models (JPG File) * Unclear or distorted intra-oral photos (JPG File)

Locations (1)

Faculty of Dentistry

Cairo, Nasr City, Egypt

Outcomes

Primary Outcomes

validity, reliability, and repeatability of Little's Irregularity Index measurements

Time frame: 3 months

Data from ClinicalTrials.gov

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