Characteristics of Lingual Orthodontic Mechanics: Differences From Labial Orthodontics
- 안성재
- 2월 9일
- 1분 분량
Ji-Sung Jang
Yonsei HAU Orthodontic Clinic, Jinju, Korea
Lingual orthodontics distinguishes itself from labial orthodontics mainly through the positioning of its appliances on the lingual side of the teeth, altering force application points and tooth movement mechanics. This biomechanical difference enables orthodontists with experience in labial techniques to transition to lingual orthodontics. In the leveling and alignment stage, the shorter lingual arch perimeter necessitates the use of narrower single brackets and selective appliance attachment for the effective management of rotational control. During space closure, careful torque control is crucial, employing methods such as overtorque during setup, lever arm mechanics, and multislot bracket systems to prevent torque loss. In particular, lever arms have advantages attributed to the anatomical use of the maxillary palate, allowing for efficient force direction adjustments. In the finishing phase, the precise execution of previous treatment stages simplifies the process compared with labial orthodontics. Although lingual orthodontics requires specific adaptations, it closely aligns with labial techniques, providing a patient-oriented approach that satisfies growing aesthetic demands. This review aimed to guide orthodontists in understanding and effectively implementing lingual mechanics, highlighting its potential to achieve aesthetically pleasing and functionally successful outcomes.
Key words: Lingual orthodontics, Torque control, Lever arm, Treatment sequence
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