Ultrasound-based investigation demonstrates targeted relaxation of the depressor anguli oris muscle, suggesting improved cranial modiolus repositioning.
Neuromodulator treatments of the perioral region are increasingly popular and aim to modulate the position of the modiolus. The predominantly targeted muscle is the depressor anguli oris (DAO) which allows for the modiolus to reposition cranially once temporarily relaxed.
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Alfertshofer et al. (2024) studied this question.
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