Pulp Therapy
Case Report of LSTR and Dentigerous Cyst Formation
Annie Tsuchiyama, DDS
Pediatric Dental Resident
USC
USC
Irvine, California, United States
Jesslyn White, DDS
Herman Ostrow School of Dentistry of USC, Los Angeles, CA
Philip L. Yoong, DDS
Pediatric Dental Resident
USC
Herman Ostrow School of Dentistry at USC
Los Angeles, California, United States
Philip L. Yoong, DDS
Pediatric Dental Resident
USC
Herman Ostrow School of Dentistry at USC
Los Angeles, California, United States
Alexander Alcaraz, DMD
Program Director
Herman Ostrow School of Dentistry of USC, Los Angeles, CA
Los Angeles, California, United States
Tsuchiyama, A.,White, J., Yoong, P</span> Herman Ostrow School of Dentistry of USC, Los Angeles, CA Abstract: Case Report of LSTR and Dentigerous Cyst Formation Lesion sterilization and tissue repair (LSTR) is a non-vital pulp therapy technique involving an antibiotic paste without mechanical instrumentation. This case report discusses a 5-year-10-month-old female patient who was referred to the USC Pediatric Dental Clinic for comprehensive dental treatment. Several caries were present (notably with an abscess on #T), with subsequent LSTR treatment of #S and #T utilizing a triple antibiotic paste of metronidazole, ciprofloxacin and minocycline. Three years following LSTR treatment a asymptomatic unilocular, well-defined radiolucent lesion was identified between the root of #29 and #30. An oral surgery excisional biopsy was performed, in which the lesion was removed and histologically identified as a dentigerous cyst. This report discusses the potential adverse outcome of a dentigerous cyst developing post-LSTR treatment.