Hi all, I have just taken my 5 year old son to the GP for mouth breathing, particularly at night. He is referring us to ENT and I just wondered if anyone had any experience of this? He had his tonsils and adenoids removed before he was 3 so it isn't that. I just really want to prepared and make sure I am not fobbed off at all. I would like to request a sleep study so see how much decent sleep he is getting/ his oxygen levels but dont know about anything else. Some internet stuff say it is an ENT issue, some say dental. Just looking for a bit of experience or advice if anyone has any x