Hello LMo - Yes I read it last year. Absolutely rivetting. Whether he used his imagination or not, the essence of the thing seems genuine to me.
I don't like the dentist much anyway; I think I like it a bit less now!
I don't have my own copy of the book to check this, but I seem to remember a pretty short and sudden leap to sobriety/flight to sanity at the end, as with celebs who give interviews immediately after treatment...not sure.
And that's just the way the media likes it I suppose.
My enduring memory is the sense of the (in his case) very rapidly tightening grip of the addictions. I mean, nobody STARTS OFF like that - it aint exactly a career plan - I think the book has made me more alert to the promptings of certain kinds of desire.....Thanks for opportunity to say a coupla things about it. ss