4 Foods That Will Give You Natural Energy. Creating natural energy doesn't have to be a matter that's left to the energy drinks and coffee every morning. In fact, most of the time these drinks end up making you feel more sluggish in the middle of the day than if you hadn't consumed them in the first place.
The first visible evidence of toothbrush abrasion is the junction between the crown (top of your tooth) and the slightly yellower root surface. This root surface is much softer and doesn't have the strong enamel layer to protect it.brasion is a term we use to describe mechanical wear that comes from something other than teeth.
Abrasion: the excavation of surface particles by material carried by the erosion agent. The effectiveness of this process is related to the velocity of the moving particles, their mass, and their concentration at the eroding surface. Abrasion is very active in glaciers where the particles are firmly held by ice.