Hello i have a quick question.... i get my braces done in a week but i have 3 cavities they are not bad at all but my dentist want to do them before t?

Cavities first: It is unethical as well as counterproductive to begin Orthodontic treatment in the presence of infections. Cavities are infections. See your General Dentist to assure that your teeth and supporting tissues (gums/bone) are perfectly healthy before braces are placed. For highest quality, least expensive, most efficient Orthodontic Care, see a fully qualified Orthodontic Specialist.