1, that depends on your age, dentition, etc. If the dentition is irregular, it is best to use orthodontic treatment, that is, correction. If the dentition is simple and the molar relationship is normal, the orthodontic effect should be good (but tooth extraction may be needed)!

2. If you make porcelain teeth, in order to get the gap between porcelain crowns, you must grind the normal crowns smaller! If the teeth are normal, it is completely unnecessary! If it is a base metal porcelain crown, the gums will turn black after wearing it for a few years, which will affect the appearance; If you don't do it well, you will have pulp problems, which is very troublesome! If you do precious metal porcelain testing, the cost is not cheaper than correction! !

3. Orthodontic treatment takes a long time, but the effect is better. Teeth are still your normal teeth. As for the problem of wearing appliances, you can choose porcelain brackets (braces), which are the same color as teeth! Discuss with your attending doctor specifically!