Invisalign is a great option for orthodontic patients who have minor misalignment issues. Invisalign is capable of treating crooked teeth, gaps between the teeth, overbites, underbites, crossbites, open bites, and crowded teeth. Many orthodontic patients love Invisalign because they're relatively invisible on the teeth. This makes this orthodontic treatment especially popular among adults looking to improve their smile and their oral health.