Have you parents heard about this?

Who on earth would put their kids through this, that's what knockout gas is for so the children don't struggle, they even have injections they can give them these days to make them relaxed, if anyone tried this on my kid they would be in for a world of trouble. This isn't treatment this is brutality, and for mentally ill children they still give them something to calm them down and may need to restrain their arms gently just to stop them from injuring themselves whilst the dentist works, so I don't believe a word of it, they should be in jail for what they are doing !