Plaque screening systems provide a way for patients and clinicians to see plaque build-up on teeth. These systems use temporary dyes that stain the plaque, making it easier for patients to see the true state of their oral hygiene. Screening for plaque can be used to demonstrate the effectiveness of a prophy appointment or to highlight a patient's need for improved home oral care. The use of a plaque screening system can be a great way to motivate patients.