How much is it to close the gap in your teeth?

get braces.

go to the dentist and see what they can do because you cant do any thing.

yes

Your orthodontist should be able to close all gaps and get your teeth to align perfectly

Could it be a change in diet?. Possibly a nutrient? What changed in your life from then to now? Are you eating better, or more of a particular type of food...a fruit? I feel like my gap has moved...