Abstract: A tooth brush device comprising an elongated body having first and second end portions and an intermediate portion between the end portions, bristles at the first end portion of the body providing a brush while the second end portion provides a handle for the tooth brush device. The intermediate portion of the body has a chamber for receiving a spool of dental floss to be dispensed by the device through an opening extending within the second end portion, and the body includes a window for monitoring the presence of dental floss within the chamber of the body. The window of the body may also be provided by an opening to the chamber and a transparent window cover removably secured with the body enclosing the opening. The cover includes spool retaining structure which is received within the chamber for rotatably retaining within the chamber a spool of dental floss for the dispensing of floss by the device.