European Journal of Molecular & Clinical Medicine

Abstract

Orthodontic treatment plan is incomplete without planning the retention.Usually
post treatment, the teeth tend to move to their earlier position. To prevent the relapse, use of
retainers after orthodontic treatment becomes mandatory. Removable retentive devices facilitate
ease in maintaining good oral hygiene during the treatment1.The most commonly used
removable retainers are theHawleys and Essix retainers. The retainers permit reorganization of
the underlying supportive structures after completion of orthodontic treatment2. They are mostly
made up of either thermoplastic polymer or polymethylmethacrylate acrylic base.3.The selection
of retainers from wide range of retainers available, depends on choice of aesthetic of the patient
and other parameters. Presentlyvacuum formed retainers (VFR) are more commonly used.
Removable orthodontic devices provide a favourable environment for accumulation of microorganisms
and may result in caries, Periodontal diseases and other illnesses.4-7 Most common
bacteria of oral cavity are Streptococcus mutans and Lactobacillus. Many studies have shown
high level of bacterial accumulation on removable orthodontic appliance