SACRAMENTO, Calif. _ You'd never know that California's native oak trees are at risk by the army of young seedlings sprouting in lawns and gardens this spring.

Jul. 23--From tooth-shaped clipboards to suspended computer monitors in every exam room, Columbia's ProDental has spared no expense in creating the Home Depot of dentistry. "It's a unique approach, said Jake Lippert, a dentist and executive director of the Missouri Dental Association.