The patient with an odontogenic infection.

The routine use of antibacterial agents for the management of odontogenic infections has not been shown to be effective and is inappropriate. Most of these bacterial infections can be resolved satisfactorily through an approach that incorporates debridement (primary dental care) in conjunction with local anesthesia. Odontogenic infections are polymicrobial.

The patient with Parkinson's disease.

Parkinson's disease is an idiopathic, slowly progressive disorder of the central nervous system characterized by resting tremor, muscular rigidity, slow and decreased movement (bradykinesia), and postural instability. In the United States, Parkinson's disease is the fourth most common neurodegenerative disorder in the elderly, affecting an estimated half a million people. Oral health care providers can expect to be called upon to care for patients with this progressively debilitating disease.