By GINA KOLATA I was chewing a piece of steak on a Saturday night last month when an old filling shattered. Suddenly, along with steak I had chunks of gray amalgam and shards of tooth in my mouth. I felt the hole with my tongue — it seemed as large as a crater. My dentist [...]

The electric toothbrush has become very popular in recent years — some even say it provides superior dental care. But how does it actually compare to manual brushing? “The idea of a toothbrush is to remove plaque and to stimulate the gums,” explains John Ictech-Cassis, DDS, DMD, clinical associate professor at the Boston University Henry [...]