Invisalign became available to the public in the late 1990s, and it transformed the field of orthodontics forever. Today, it has helped over 8 million patients achieve the straight, healthy smile they’ve always wanted – in a fraction of the time too! While this teeth-straightening solution is unique in many ways, it is similar to traditional metal braces since you must wear a retainer to preserve your hard-earned results. But for how long? Read on for the answer!
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