Both retainers are effective. They each have their pros and cons. I do have prefer the clear retainers for many of my patients, but the wire retainers have their purpose as well. Clear retainers don’t last as long as metal retainers. For example, a patient who grinds their teeth at night may wear through them. Most patients are more likely to wear the clear retainers more than the wire retainers, because they are more esthetic. I do have patients that prefer the wire ones, because the orthodontist can tighten and modify the wire retainers. Also, the wire retainers help your back teeth “settle” better at the end of treatment. In summary, clear retainers are the more aesthetic option and a great option if you don’t grind your teeth.