chicken, wheat bread? I hope the soreness goes away soon.
those foods are not forbidden by any orthodontist I've ever dealt with, and our family's teeth alone probably account for a year's worth of ski condo payments for our DDS. Give it some time: once the teeth reposition themselves and settle in, you should be back to normal except for the usual forbidden list. My kids would live on mashed potatoes for a few days after getting them tightened, then they'd be ok until the next visit.

~I.