What procedures are needed to reduce submental area and "curved" chin? (Photo)

In person evaluation and discussion about your goals would be a more appropriate way to approach your question. Bone shaping (based on this photo) may be one of the options. Consultation with a board certified plastic surgeon with good reputation in facial rejuvenation or a maxillo-facial surgeon would help. Good luck.

A combination of treatments may be needed to get the results you want. Neck liposuction is a great option for patients with good skin elasticity and excess fat in the neck and around the jawline. Liposuction is effective at removing this excess fat and stimulating the skin to contract over time to create improved angulation and definition along the jawline. You may decide a chin implant would help provide more projection. I recommend seeing an expert for a consultation. I hope this helps!