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May 8, 2026

Discrepancies between actual and expected orthodontic treatment duration with pre-adjusted edgewise fixed appliances: A case-control study of factors associated with treatment delays

Key Points

This study aims to explore discrepancies between estimated and actual orthodontic treatment durations and identify factors contributing to delays.
Conducted a case-control study to evaluate treatment durations among orthodontic patients.
Utilized statistical methods including t-tests, chi-square tests, and logistic regression analysis.
Identified predictors of underestimated treatment duration.
About 66% of orthodontic treatments had discrepancies between estimated and actual durations.
61.5% of treatments were underestimated, particularly in cases with posterior crossbite and during the COVID period.

Abstract

OBJECTIVES: To explore the prevalence of discrepancies between estimated and actual orthodontic treatment duration and identify predictors of treatment delays. MATERIAL AND METHODS: -tests and chi-square tests, as appropriate. Predictors of underestimated treatment duration were assessed with logistic regression analysis. RESULTS: = 0.007) were significant predictors of treatment underestimation. CONCLUSIONS: Approximately two-thirds of orthodontic treatments showed discrepancies between estimated and actual duration, with 61.5% being underestimated especially in presence of posterior crossbite and during COVID period.

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Discrepancies between actual and expected orthodontic treatment duration with pre-adjusted edgewise fixed appliances: A case-control study of factors associated with treatment delays

Key Points

Abstract

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