Menouf City

The trial investigates the clinical and radiographic effects of zinc oxide-ozonated olive oil compared with Modified Triple Antibiotic Paste MTAP as a Lesion Sterilization and Tissue Repair LSTR technique in primary molars. This study focuses on children aged 4 to 7 years with primary molars affected by pulp necrosis or chronic pulp infection. The aim is to find a simpler and faster alternative to traditional pulpectomy treatments while preserving primary teeth essential for proper dental development. Participants will receive either zinc oxide-ozonated olive oil or Modified Triple Antibiotic Paste applied using the LSTR technique to disinfect and repair non-vital primary molars. The study uses a randomized design with single masking and includes two experimental arms comparing these treatments. Both treatments aim to sterilize the infected root canal system and support tissue repair without extensive instrumentation. During the study, participants will be monitored at 3, 6, 9, and 12 months for clinical and radiographic outcomes. Researchers will assess pain, infection signs, tooth mobility, and radiographic features such as periodontal ligament space widening and root involvement. The follow-up will help evaluate the success of treatments in preserving the teeth and preventing complications. Total participation duration extends through the 12-month follow-up period.