For those on both sides of the dreaded dentist's chair, James Wynbrandt has written a colorful and richly informative history of the art and science of dentistry. To all of those dental patients whose whine rises in tandem with that of the drill, take note: You would do well to stifle your terror and instead offer thanks to Apollonia, the patron saint of toothache sufferers, that you face only fleeting discomfort rather than the disfiguring distress, or slow agonizing death oft meted out by dental-care providers of the past. The transition from yesterday's ignorance, misapprehension, and superstition to the enlightened and nerve-deadened protocols of today has been a long, slow, and very painful process.