For mandibular angle plastic surgery, it is inevitable that the masticatory function is uncomfortable in the early stage of mandibular angle enlargement because the masseter muscle in the lower frontal angle is responsible for the chewing function when eating food and things. Generally speaking, this chewing dysfunction is only temporary. The reason why masticatory dysfunction will inevitably occur after inferior frontal angle plastic surgery is that there will be swelling and swelling after inferior frontal angle plastic surgery, otherwise it will cause masticatory dysfunction, but this situation is normal, and the swelling will be relieved in about 5-6 days, then masticatory function will be improved to a certain extent, and it will return to normal after a certain amount of exercise. Experts suggest eating liquid food once a week after inferior frontal angle plastic surgery, instead of chewing food.