Yeah, I would definitely not take my newborn to a chiropractor. I have nothing against chiropractic except for the fact that 9 times out of 10 you have to go back for repeat visits, and honestly, I'd rather go see my osteopath. My biggest problem with chiropractic is that it is so passive, unlike physical therapy. When I was suffering from chronic back pain, I tried out everything to solve the problem--the only 2 things that worked were stretching and strengthening exercises my physical therapist gave me, and taking a yoga class like my osteopath recommended.
I thought that orthodontic advice was pretty good though--I had several teeth shaved when I was younger in order to bring my lower teeth more into alignment. Needless to say they are not nearly as crooked now as they could have been, and I certainly had no need for braces.