wisdom teeth or third molars are not used to chew. Chewing is done by the first and second molars so your ability to chew will not be affected. There will be no harm to the jaw. if only your lower wisdom teeth were removed then you might have to remove the opposing third molars because in the long run they tend to drift downwards because of lack of opposing teeth which in turn can lead to food lodgement and decay.
Next Steps
please visit a dentist to see if you need removal of upper wisdom teeth.
Health Tips
wisdom teeth are vestigeal as our diet has gone towards softer diet we no longer need them infact not everyone gets wisdom teeth and they can chew just fine :)