Comparative evaluation of post treatment stability during orthodontic retention using lingual bonded retainers versus lingual bonded retainers coupled with thermoformed retainers – A randomized controlled trial

In this Randomised parallel study, patients recruited depending on the inclusion and exclusion criteria are assigned under two groups, Group-A patients with lingual bondd retainers only; Group-B patients with lingual bonded retainer in combination with thermoformed retainers. Study models and intraoral photographs and scans are to be obtained at the day of retainer insertion(T0) and after 6 months(T1). And the intraoral scans obtained at T0 and T1 are superimposed to look into unwanted tooth movements.