Can regular filler injections to correct pollybeak deformity cause longterm damage or complications? (Photo)

I had rhinoplasty 16 months ago to correct a dorsal hump n a drooping tip. I have pollybeak deformity that my surgeon corrects with filler injections to the depressed area. I am content. Are there any longterm complications of regularly filling this area. If I consider revision surgery to correct it, what are the usual success rates of correcting pollybeak deformities, taking into consideration that my surgeon is supposed to be an eminent and much respected professor between his fellow doctors?