Giving head with braces can be a challenge. To offset this challenge have your orthodontist cut your wires short in back, both top and bottom, that way there are no points sticking out. Take your tongue along your molars to where the braces end. There should be four places where the wires attach. If you happen to feel the wire sticking out of any of those four ends (if you have both upper and lower braces) or two ends (if you have only upper or only lower) complain to your orthodontist that they are "sticking" you in the gums. He or she should understand and adjust them accordingly.
The next thing that you will want to do is get some of the orthodontic wax. It may not taste wonderful but apply it to the sharper edges of the brackets along your frontal teeth, namely the incisors. Also if given the option the next time you are in, even though it may hurt like crazy, opt for the full chains versus individual retainer bands as these will further eliminate any sharp corners. Lastly if you are fortunate enough to have elastics going parallel to you braces, wear them.
And as always, since you have braces, observe the tongue technique. Pay special attention to the head, as well as the frenulum, or the small patch of skin below the head. Avoid licking as if it were an ice cream cone, as there are better ways of doing it. Do some research and you will go far.
Think long and hard (no pun intended) where the braces are on your teeth, and how you use your mouth. Are the front of your teeth ever rubbing on the penis? I'm pretty much positive they won't be. Braces are on the front not the bottom of the teeth and really don't touch the penis at all. My girlfriend has them and there is absolutely no contact between metal and dick. If you don't want to because you have them, then I can't hop in your head and fix that, you will have to overcome it on your own, I'm simply saying they don't make a difference in feeling on the guys end.
I wore braces when I gave my first head. It's not as hard as it may seem. Just start out slow on the head and with each time you give head continue taking down more. He'll find it just as exciting and so will you. There's no reason you can't make him come just as good as if you wore no braces. To start, make sure to use your tongue and hand more
Like the other girl, my first time was with braces as well. It is understandable if you don't want to give head due to braces, but not because you think you will decapitate his member. It would be understandable if you didn't want to because your braces may irritate your lips as they may rub against the braces when you cover your teeth. Either way it is possible to give good head with braces.