my first concern is about my diastema (3mm) & i want it closed. i would choose the regular braces however if i want to correct my crossbite maybe i'll use an expander first? then after use braces. but if the treatment time & cost would be lesser (if), then maybe lingual braces could be better? (if an ortho would recommend) i mean it's not about the time of treatment if it would take shorter but if i would like to correct both my diastema & crossbite, can lingual brace treat it all in one? advice