On the one hand, orthodontics loves beauty, on the other hand, it does not rule out the existence of medical device manufacturers. The combination of these two aspects has led to the proliferation of orthodontists.
There is a student in the class, tall and big. When I talk to you, I open my mouth and reveal a shiny steel ring. When he noticed that you noticed him, he blushed and stopped talking. I want to ask him how he feels about orthodontics and see how embarrassed he looks. I also gave up the idea.
There are one or two students with braces in each class. These students also have the possibility of influencing each other.
There are many diseases in this society, all of which are artificially invented. Why are you doing this? Because of the interests! When the disease was invented, drug manufacturers could sell drugs and equipment manufacturers could use equipment. So the money rolled in.
In the book Crazy Like Us, there is an extreme example. In order to alleviate the decline of American sugar industry, top scientists were bribed and asked to publish papers, saying that the main cause of heart disease was fat, not sugar. Finally succeeded.
The diagnosis of diseases is a very complicated matter. In the absence of diagnosis, some minor illnesses may be described as serious illnesses by black-hearted doctors until you empty your purse.