is there any way i can close the gap in my teeth without braces?

i have a gap in my front two teeth that is not that big or anything but it is still kind of bothering. i want braces and i have dental insurance but i dont want to waste money on braces if there is a way to close the gap without them.
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those night time mouth peices, i know someone who has one but it will take alot longer than braces will. braces arnt so bad after the first week or 2
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