Six month back my mother had rct treatmnt on uper left 2nd premolar 1 nd 2 molar.....nd make a bridge 6 unit...canine nd first premolar was missing taking suport from lateral incisor ...nd 2nd premolar 1st nd 2nd molar 6 unit bridge cemented...but with in few month my mother has facial swollen nd gum swoolen along pain ..she took antibiotic ...nd condition subside but aftr some time it will happen agaim n again ultimatly our dentist removed bridge nd do rct in uper left lateral incisor.
But on the last visit of rct completed gum margin of lateral incisor swoolen as 2nd premolar nd molars.. .on xray perapical radiolucency present on premolar nd molar.
What is the causes nd treatment optionss?.