Definitely check with your dentist for the appropriate ultrasonic toothbrush to fit your needs. You could also read through some of the ultrasonic toothbrush reviews on Consumer Reports. New toothbrushes and technologies are being developed on a constant level.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.