What is the best order for good dental care and why - floss, brush, water pic?

THE KEY AND CORRECT ANSWER IS ANY OF THESE MUST BE DONE PROPERLY. HOWEVER, IF FOR EXAMPLE, THE PATIENT HAS POCKETING GREATER THAN 3mm THEN FLOSSING IS INEFFECTIVE BECAUSE THE GEOMETRY ABOUT FLOSSING DOESN'T ALLOW IT TO BENDTO REACH AND CLEAN THE BOTTOMOF THE POCKET. A AN ORAL IRRIAGATOR SUCH AS A WATERPIK IA BEST SUITED FOR THIS.

It really doesn't matter what order you do these in what matters is that you take the time to do each of the effectively. Brushing should take about 2 minutes (30 seconds for each quadrant). Floss until you hear the floss squeak on your clean teeth and irrigate with the waterpik until everything feels clean.

You could floss, use the water pic and then brush, because if you brush your teeth before flossing, then you will have little peaces of food in your mouth, and at the end use a good mouth wash, if you heve caries you could use ACT I (has fluoride) at nigth and listerine in the morning.

Not really, just as long as you do them. Certain people have certain preferences. Text book answer is floss, brush. then mouth rinse. But is seriously does not matter. You can use water pic in place of flossing if you prefer.