Yes, elbows, I turn the water on and off for just the reasons you mention. Where’s my prize? 
I don’t use water, so the question of temperature don’t tend to come up much.
Brush, paste, motion, spit…
Good Morning, MonkeyBoy!
Hey, me too!
Two of mine are in my top top dresser drawer, though…
Well Larry, I guess they’re out there. The shampoo bit is a good analogy.
I’m wondering what the “proper” way is? Any dentists out there with the answers?
In my house my dad always said not to drink the hot water because it was chemically softened and the cold water was not. Not because it was dangerous, just for taste reasons.
My dentist says it doesn’t matter if you brush with hot or cold water. She told me to use warm because I have sensitive teeth, but some people prefer cold because it’s more refreshing or it tastes better.
My husband says the idea of warm water grosses him out. Cold water makes my teeth hurt just thinking about it.
I just moisten my toothbrush with a tiny bit of water at whatever temperature it leaves the tap. It’s pretty darn warm by the time I get done brushing my teeth. If it didn’t take so long for the water to get warm in my bathroom, I’d rinse with warm water, but since I don’t want to waste it, I just rinse with a handful of cold water. It’s nice to know that other people are thinking about water conservation, too. We may buy it from the city, but safe drinking water is a more and more limited commodity, and there’s no point just flushing it down a drain.
I doubt that it matters if you don’t rinse your mouth out with water after you brush, since your mouth will rinse itself out in short order, and you’ll just swallow whatever you left in there. There’s generally not enough fluoride in the amount of toothpaste you should be using to brush with (about the size of a pea) to fret about swallowing. If you really want to treat your teeth with fluoride, there are over-the-counter fluoride gels available.