Comparison of Retention Characteristics of Clear bow Hawley & #8217;s and Vacuum Formed Retainers & #8212;A Randomized Controlled Trial

Conclusion: Both the CBRs and VFRs are equally effective in retaining the corrected malocclusion, CBRs can be considered as a very good alternative to VFRs.
Source: Journal of Orofacial Sciences - Category: Dentistry Authors: Source Type: research