
What is the best way to brush?
One effective technique involves using a circular motion to brush a couple of teeth at a time, gradually covering the entire mouth.
Place a toothbrush beside your teeth at a 45-degree angle and gently brush teeth in an elliptical motion.
Brush the front of the teeth, behind the teeth, the tongue and chewing surfaces, and between teeth.
Using a back-and-forth motion causes the gum surface to recede, or can expose the root surface or make the root surface tender. You also risk wearing down the gum line.
Soft or hard bristles?
How long should I brush?
Should I brush at work?
Reprinted with permission from the Academy of General Dentistry
Microwaves and 'Erupted Hot Water Phenomena'
Hot-water eruption can occur if you use a microwave oven to super-heat water in a clean cup. ("Super-heated" means the water is hot beyond boiling temperature, although it shows no signs of boiling.)
A slight disturbance or movement may cause the water to violently explode out of the cup. There have been reports of serious skin burns or scalding injuries around people's hands and faces as a result of this phenomenon.
Adding materials such as instant coffee or sugar to the water before heating greatly reduces the risk of hot-water eruption. Also, follow the precautions and recommendations found in microwave oven instruction manuals; specifically the heating time.