William Wan did my braces, it was ok for less than a year after retainer was put in. But now it is crooked again and he wants to charge more for him to fix his bad job. He overcharge me for my copay in addition to overcharging my insurance company. He lied and pretend he did certain procedures but did not, just so he can charge insurance company even more. He is a CROOK and the WORST DENTIST in the whole wide world. DO NOT EVER GO SEE HIM AND BE CHEATED BY THIS MONEY FACE DENTIST. Another thing he treats his employees like dirt and curse them in front of patients.