I TOTALLY TRUST DR ELLIE, AFTER 50 YEARS OF ADVICE I NEVER HAD THEM EXPLAIN DENTAL HYGIENE LIKE HER. TWO YEARS INTO THE PROGRAM AND TEETH FEEL GOOD. MY MOUTH DOES HOLE FOOD AFTER EATING AND I HAVE TO FLOSS INBETWEEN TEETH ONLY TO REMOVE THEM. AND IF I USE IRRAGATION ITS ON LOW PRESSURE INBETWEEN TEETH ALSO.