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The lingual arch is an essential component of successful orthodontic treatment and must be carefully considered by orthodontists while developing a patient's plan. Utilizing the lingual arch allows for stability and support to ensure the proper alignment of teeth. This vital structure is typically constructed from stainless steel and can have between three and four components, depending on its function in the patient's mouth. The construction of this arch relies on precise measurements taken directly from the patient's anatomy, as every jawline has unique characteristics.