LESION STERILIZATION AND TISSUE REPAIR (LSTR) IN PRIMARY MOLARS

LSTR is an endodontic treatment approach that involves non-instrumentation or minimum instrumentation followed by the administration of an antibiotic mixture in a vehicle to disinfect root canal systems and peri-apical lesions. LSTR is based on the notion of repair by the host's natural defence mechanisms. Sterilising the canals and pulp chamber using medicaments helps lessen the bacterial burden. This technique is less invasive, less time consuming, and come with primary aim of elimination of all the microorganism i.e, sterilization of root canal spaces which results in good healing. If the procedure is successful tissue repair can be expected. It needs the application of a different antibiotic combinations known as "Triple Antibiotic Paste" (TAP). LSTR therapy could be a viable treatment modality for infected/nonvital primary molars with poor prognosis, in cases of internal and external resorption and intended to be maintained for shorter duration in the oral cavity as natural space maintainers.