I have just begun treatment with Dr. Bender so I cannot speak on long-term results. I will say that I have a very real phobia for shots anywhere near my mouth and he is the first doctor to ever give them and I felt nothing. I could have kissed him for that but it was hard since my mouth was completely numb. I loved my time with him so I hope it does work out. I read a very good review and one that was awful. I guess it is all one's expectations and style.