I want to discuss the alignment cost, as i have already been seen 3 orthodontist so far, and i want to go with clear aligners, what i got from them is that its extraction case( 4 tooth to be removed). I don't want to use braces from outside. Lingual and clear aligner are the options which cost me (Lingual : 1L and above 2L , clear aligners 1.5L and more than 2.5L(invisalign)). Are these costs standard or it can be optimized like instead of invisalign, clear path etc can be option.