1.Mildly crowded uneven teeth. Before treatment, the teeth bite After treatment, the patient’s face before and after treatment 2, the teeth are heavily crowded and uneven. Pre-treatment bite Post-treatment bite Pre- and post-treatment facial 3.Protrusion of upper teeth (“whistling teeth”, “buck teeth”, “bruxism”) Before treatment teeth bite After treatment teeth bite Before and after treatment facial 4, “tiger teeth” (cusp teeth misalignment). Before treatment teeth bite After treatment teeth bite 5, jaw recession deformity. Before treatment dental bite After treatment dental bite Before and after treatment facial 6, “ground envelope” (anterior teeth retrusion, chin protrusion) Treatment before the teeth bite Treatment after the teeth bite Treatment before and after the face