Hello sir,
Hope you are better now. It seems like you have undergone splinting. Those wires will be removed soon after your teeth and jaw are perfectly stabilized.Your mouth requires time to get adapted. You can do some mouth opening exercises if you dont have any pain. It ll loosen up your mouth muscles and please dont strain or dont do the exercises vigorously such that you get pain.
Next Steps
Please do ask the dentist when to start mouth opening exercises
Health Tips
Be safe and careful. There is nothing serious about your issue