Ceramic or tooth colored braces ( mostly placed on upper teeth )
Lingual/Invisible braces ( placed on palatal and lingual surfaces )
Clear path aligners ( without braces with the help of transparent trays teeth correction is done which are designed according to jaw size ) It is a very comfortable way of correcting malaligned teeth but comparatively more expensive too.
Advantage of aligners is that they meet out the aesthetic needs of the patients hence very useful for adult patients.
Why require Orthodontic treatment:
Irregularly placed teeth create bad breath ( smell ) due to improper cleaning, mobility of teeth due to gum problems and most importantly Aesthetic problems.