FIRST:

Use the proxa brush between the teeth everywhere it fits. Use waxed floss in any areas where the brush does not fit. Drug stores carry replacement brush tips.

Insert the brush tip into the space between the teeth until you can feel the tip on the other side with your tongue.

SECOND:

Brush with toothpaste formulated for sensitive teeth (Crest or Sensodyne). Always use a soft brush.
Aim the bristles right at the gumline and brush back and forth making sure the bristles stimulate the gum and clean the tooth. Then, brush the tops of the teeth. Scrub for two minutes.

THIRD:

Use the face of a spoon to scrape your tongue - scrape as far back as possible. The tongue is a breeding ground for bacteria. If you prefer, drugstores carry a variety of tongue scrapers.

FOURTH:

Rinse with water to remove any toothpaste residue. Rinse with a capful of mouthwash for 60 seconds, then spit. Do not eat or drink for 30 minutes after using mouthwash.

It is especially important to do this routine before bedtime as the mouth dries out while sleeping, making it vulnerable to bacterial attack.