It depends on what your using to close the gap. I would recomend for you to use teeth effect bands. It might take a few weeks for your gap to close, but the results are amazing. Teethgap.com < go to this website to order them and find out more.
i had two 2mm gaps and they took 1 1/2 years to close along with the realinment of my other teeth too!
14
3mm = 0.12inch.
3mm = 0.3 cm
need to know 3mm into inches
Could take a few weeks. i say 3 weeks to a month.
0.3cm
Toenails grow around 3mm per month and they require 12 to 18 months to completely regrow.
3mm.
about 3mm
3 mm = 0.118 inches or real close to 1/8"Direct Conversion Formula3mm*1 in25.4 mm=0.1181102362in
3mm