Here are four recent updates regarding violent incidents and threats to dental offices in the U.S.:
1. A man was arrested and charged with threatening to blow up a dental practice in Joplin, Mo.
2. A Wisconsin man pleaded guilty to threatening to shoot a dentist and his staff.
3. A Maine man was charged with arson after allegedly setting an orthodontics practice on fire.
4. Employees at a Western Dental practice location in El Cerrito, Calif., were threatened by a suspect with a gun in April.
