Over a million people in the United States have Parkinson's disease, and doctors diagnose 50,000-60,000 new cases every year. Parkinson's is a degenerative neurological disorder that affects a variety of body movements, and sufferers experience a range of symptoms. People with Parkinson's can face several problems when it comes to oral health, and it's often harder for them to maintain good dental hygiene. If you or a loved one suffers from Parkinson's disease, learn more about the effects this can have on your dental health, and what you can do to deal with the problems you may face.