1) The effectiveness of vacuum formed retainers was more as compared to conventional Hawley's retainer.2) In terms of speech articulation, appearance and comfort, vacuum formed retainers proved to be more respectable than the conventional retainers and more effective clinically. The patient seemed to be more satisfied while wearing the vacuum formed retainers.3) As far as durability and survival of the retainer is concerned, fewer breakages were reported in Hawley's retainers than the vacuum formed retainers.4) When comparing the oral hygiene maintenance of the two, Hawley's retainers proved...