Paper button Advanced

What are the long term effects of the Herbst Appliance, if any? - wedding thank you for appliance

I researched the fall of appliance on the Internet and still have some questions. I am 13 years on the sun will be on 9 December. If anyone has had or has this feature, please answer the following questions:
It is hurtful when you sit down? Retirement?
Does the bar can slide easily from the tube? (ie, yawn.)
Have you ever been wrong to talk, sing or play an instrument (clarinet)?
I have read about a time when the patient takes the mouth to continue, as I say, after the device is removed, added, many people have problems with the jaw needs such as ATM and the worst surgery of the jaw?
Is it likely to happen?
After removing it does not hurt to talk too, eating, singing, or playing (clarinet)?
Can you eat food or chew gum after it is removed?
Thank you for your help!