dental advice on braces

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1. i have 1 teeth extracted on upper left back.
2. i have 1 teeth extracted on upper right back.
3. i have 1 root canal on upper left back.
4. i have 1 root canal on upper right back.
5. both upper extractions are not filled.
6. i was suggested a bridge on both upper side.
7. now i want to have braces for upper and lower side.
8. what should i do now? what are all the treatments i need to complete.
9. please advise. thanks.