Hi,

It's smart to ask lots of questions and research as you are.

Using a natural , fluoride-free tooth paste is fine. Rinse
especially well. Or simply use baking soda or Dr Bronners.

Highly recommend SWF (Salt-Water-Flush) over A.M. tea. Eliminations are much more
productive and predictable-no surprises when sneezing at 11am.

Senna(major component in lax tea) is really harsh on the system,
so once a day is advisable. Though, having the tea in the a.m.
is acceptable.

Routine during the Master-Cleanse is crucial for the body can get in the swing
of the cleanse/fast. Switching from a.m. tea to swf ,back and forth,
in my opinion is taxing on the system and in turn provides for a less
than effective cleanse. I push routine...routine = the zone

have a great cleanse detour

I always use toothpaste. I love the stuff. The Master-Cleanse can really do a number on your mouth. Check your gumline, you will probably notice a great amount of tartar around the base of your teeth.
In addition to scraping all this stuff off, toothpaste improves the Death Breath that fasting people can have. Its not just MC. Almost anyone fasting goes through a period of terrible breath. The upside is that toward the end it tends to get better. Better than ever, really.

But in the meantime, I have experienced enough Master-Cleanse to feel comfortable that the benefits of brushing with toothpaste far outweigh the possible downsides I have read about.

Don't forget to brush the hell out of your tongue and drink water like crazy.