Thanks for asking the query,
If your tongue touches in between the gaps in the teeth you need to close the gap.
This gaps can be treated by orthodontic corrections, composite restorations or by using porcelain,ceramic veneers and laminates.
I would suggest you to get a thorough clinical evaluation done by the Dentist
, take an x-ray, look for any abnormal labial frenum attachment and decide the treatment plan.
Once your gap is filled the tongue will stay in its normal position.
Hope this helps out.