Gold retainers vs. steel: which keeps your smile straighter?

This study tests whether a gold-plated retainer works better than a standard stainless steel one for keeping lower front teeth straight after braces. About 40 people aged 15-30 who just finished orthodontic treatment will get one of the two retainers and be checked for 6 months. The goal is to see which retainer causes less shifting and fewer problems like breakage, while also checking plaque buildup.