They are seperators placed so that some spacing is created between molars. To put the band. The dentist
might have tried placing the band. But since the contact point was too tight .so dentist could not place those elastics. Never mind. But next visit
please make sure all the work is intact. Before leaving dental clinic
. Whereever you are getting it done .please visit your dentist again. Other wise. The space will not be created and band on molars will not be placed.in next visit .this is how you will delay your visit. And time lapse for treatment will be more.