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An Evaluation of the Estimated Aligners Needed to Correct Malocclusion Traits Using Invisalign ClinCheck™ Pro
Ileana Rosa Rincon-Gregor1, Cielo Ivette Bautista-Rojas2, Elsy Abigail Trejo-Aké1
1Department of Orthodontics, School of Dentistry, Autonomous University of Yucatan, Mérida 97000, Yucatán, Mexico.
Journal of Clinical Medicine
|November 9, 2024
Summary
The number of Invisalign aligners needed increases with malocclusion complexity, including altered bite, crowding, and canine/molar class. Clinicians should consider these factors for accurate treatment estimation.
Area of Science:
- Orthodontics
- Dental Technology
Background:
- Invisalign ClinCheck™ Pro Software is widely used for digital treatment planning.
- Accurate estimation of aligner numbers is crucial for efficient orthodontic treatment.
Purpose of the Study:
- To evaluate the correlation between malocclusion traits and the number of aligners estimated by Invisalign ClinCheck™ Pro Software.
- To identify specific malocclusion characteristics that influence aligner requirements.
Main Methods:
- Retrospective analysis of 157 non-extraction patients (age >12) with mild malocclusions treated with Invisalign.
- Malocclusion complexity assessed using the Index of Complexity, Outcome, and Need (ICON).
- Statistical comparison (Mann-Whitney U, Kruskal-Wallis tests) of aligner numbers based on various malocclusion variables.
Main Results:
- Significant differences in aligner numbers were found for ICON level, molar class, overbite, and overjet (p < 0.05).
- Canine class and lower dental crowding also significantly impacted the number of lower and total aligners (p < 0.05).
Conclusions:
- Increased aligner counts are associated with non-Class I molar/canine relationships, altered overjet/overbite, severe lower crowding, and higher overall malocclusion complexity.
- Clinicians must consider these specific malocclusion traits when estimating Invisalign treatment duration and aligner quantity.

