What question did this study set out to answer?

This study aims to assess how various attachment placements affect root torque control in maxillary incisors using clear aligners.

Effects of Attachment Placement on Palatal Root Torque Control of Maxillary Incisors with Clear Aligners: A Finite Element Study

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Finite element analysis evaluates torque control in maxillary incisors, suggesting optimal attachment strategies for clear aligners.

This study aims to assess how various attachment placements affect root torque control in maxillary incisors using clear aligners.
Conducted three-dimensional finite element analysis to simulate torque on incisors.
Evaluated six different attachment configurations on maxillary incisors.
Analyzed torque and displacement across 200 simulation iterations.
Control and canine-only groups achieved the correct torque direction for both incisors.
Central incisor attachments produced reverse torque, especially significant in the central incisor-only group.
The canine-only attachment provided the most balanced torque, with increased anterior attachments leading to more extrusion.

Choi et al. (2026) studied this question.

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