Clinical & Radiographic Evaluation of Zinc Oxide-Ozonated Oil as a New Primary Root Canal Filling

Preserving primary teeth is essential for many aspects such as the child's growth and development, esthetic, functional, psychological, and dental arch integrity aspects. a randomized blinded controlled clinical trial aimed to evaluate the clinical and radiographic success of Zinc Oxide-Ozonated Olive Oil as root canal filling materials for primary molars compared to Zinc Oxide-Olive Oil & Zinc Oxide-eugenol. 90 primary molars of 30 children aged between 4-8 years with pulpally involved primary molars, are equally divided into 3 groups which treated with Zinc Oxide-Ozonated Olive Oil , zinc oxide -olive oil and zinc oxide eugenol as obturation materials following pulpectomy procedure. The subjects were followed up clinically and radiographically at 3, 6 and 12 months.

Inclusion Criteria:Healthy & cooperative childhistory of spontaneous painPercussion sensitivitypresence of inter-radicular or periapical radiolucencyNo internal root resorptionExternal root resorption limited to apical third and with at least two-thirds root intact.Exclusion Criteria:Uncooperativeness of child and/or parentsUnrestorable toothPresence of calcific metamorphosis inside root canalsTooth with evidence of extensive internal/external pathological root resorption.