The aim of this study is to compare the effects of digital intraosseous anesthesia and manual intraligamentary anesthesia techniques on pain scores during the restorative treatment of permanent mandibular molars in pediatric patients. In addition, the techniques will be compared in terms of injection pain, anesthetic success, postoperative complications, and patient preferences. This randomized, controlled, crossover, single-blind, split-mouth study will be conducted on 78 children aged 6-12 years. Participants with bilateral permanent mandibular molars presenting enamel-dentin carious lesions will be included in the study.