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.
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