Dr. Cheung has a strong accent and is difficult to understand. Even so, I have visited his office several times for the same tooth and I get a different opinion from him on treatment each time - first he recomends replacing the filling, then when I schedule an appointment to do that, then he says, no I need a crown. Similar problems with another tooth. He recommends the most expensive treatments for each problem. The office waiting room is cold with uncomfortable chairs, and they wont let you use their restroom, but make you go upstairs to another floor.
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