Comparison of Efficiency of Bonded retainers and Vacuum formed retainers- A Randomized Clinical trial

Background: Major goal of orthodontic treatment is long term stability the corrected teeth after treatment. After there always chance relapse. To prevent relapse several appliances are available as a retention device such bonded fixed retainers, vacuum formed removable Hawley retainer, Begg’s retainer. Now days retainer has become more acceptable due to low cost, esthetic and easy fabrication. Objective: The purpose this study was analyze clinical success retainers with vacuumformed far keeping up consequences in lower arch year debond. Methods: This randomized trial (RCT) carried out at department Orthodontics, Bangabandhu Sheikh Mujib Medical University, Dhaka. In total 40 subjects who had fulfilled selection criteria were randomly allocated one two groups, receiving either vacuum-formed or for mandibular arch. Qualification patients approaching debond preadjusted edgewise appliance whose pretreatment records models accessible confirm labial segment crowding spacing clinically alignment principle research adequacy 2 kinds regarding changes incisor irregularity preservation outcome. following measurements documented each time point (6 12 months) digital caliper: Little’s index, intercanine width, intermolar length, extraction space opening. Result: groups very much coordinated age, sex, qualities, plans. Four did not attend follow period finished 36 patients. There statistically significant difference between index length. Vacuum-formed group showed greater than (P value 0.035 0.022). also no any width width. Conclusion: Some likely regardless choice, negligible many Bonded have superior capacity hold arrangement retainers. Trial registration: done. Bangladesh Res Counc Bull 2022; 48: 105-111