Maybe the one that's yellowish is a couple months old. I also use a Sonicsomethingorother electric that I get automatic shipment of a replacement head every 3 months. The Sonic doesnt have the yellow appearance.
The yellow color on the manually operated brush (lol)is kind of pretty. I think it's because I use it so soon after a cigar -so I dont get that heavy duty aftertaste- that it is picking up a fresh bunch of whatever nicotine/tar comes out of a gar, and it may have something to do with the bristles on this particular brush.
Thanks for all the good advice. I mostly posted so you guys could goof on it. Don't you know me by now? I am married to a dental hygenist and I am in for a cleaning this morning, just so you guys don't think I am from WV, nicknamed Tooth, and married to a relative.
Hmmm. 2nd cousins aren't really relatives, are they?