@JoannaD What Dawn has said is very true. If the comb in the frame is repairable the bees will do it but not use the cells along a fracture for brood but will use the rest of the frame. Using rubber bands to hold everything together till the bees can repair it more permanently is a good move.
As with a lot of bee keeping there is more than one way to get to the same end result, When I am making up a new hive I wire my frames and fit bees wax foundation and it works well for me. with two possible issues, don’t buy foundation that might be of Chinese origin as they are buggers for blending bees wax with paraffin wax for more profit as paraffin is much cheaper. The other issue is that even locally produced foundation may contain some toxins, and there is no way to know if it is present. Over here I only buy from the one producer of foundation who is in a big-way and so far his wax is good.
Cheers