Robert,

The film and chemistry is available from dental supply houses and possibly from other sources. You could get you dentist to order it for you if necessary. I happen to be a dentist and just received the chemistry for my office x-rays and I am quite sure the film is available as well. The film is not cheap but it makes an extremely high quality negative. About three years ago I enlarged and printed four limited editions for an internationally known photographer using that film and printed in pt/pd/au. The prints were highly regarded by his agent and complimented by Peter Fetterman.

http://www.jeffreyglasser.com/