You will need a face to face consultation with a facial aesthetic doctor / surgeon to decide what would be in your best interests. Permanent implants work very well but cost a lot more and not risk free considering they are much more invasive when being implanted. On the contrary, dermal fillers, though temporary, can give an instant results and improve skin quality. Also you know also that if, for whatever reason you didn't like a result the fillers can be reversed with a chemical called hyalase. The implants, can only be manually retrieved. The downside of filler is they are temporary and hence require long term financial input in you want to maintain. Most of the bigger filler brands have thicker, harder products for the cheek like Volume (Allergan Juvederm) and these results can last up to 2 years on the cheeks. Hope this helps.
Hi! A strong holding chin fillwe could be required to sculpt this. Masseter Botox may also help a lot