Comparative Evaluation of Pediatric Rotary Files and Hand Files in Primary Molars

Comparative Evaluation of Two Pediatric Rotary Files and Hand Files In Primary Mandibular Molars With Regard to Obturation Quality and Postoperative Pain

The goal of this clinical trial is to evaluate and compare the efficacy of Kedo-Nano Plus rotary files, Kedo-S Square rotary files, and manual K-files for biomechanical preparation during pulpectomy of primary mandibular molars in children aged 5-8 years.

The main questions it aims to answer are:

• Does the use of Kedo-Nano Plus and Kedo-S Square rotary file systems result in better obturation quality compared with manual K-files during pulpectomy of primary mandibular molars?
• Does the use of Kedo-Nano Plus and Kedo-S Square rotary file systems reduce postoperative pain compared with manual K-files following pulpectomy?

Researchers will compare Kedo-Nano Plus rotary files, Kedo-S Square rotary files, and manual K-files to determine their effect on obturation quality and postoperative pain.

Participants will:

• Undergo clinical and radiographic evaluation of primary mandibular molars requiring pulpectomy.
• Be randomly allocated to one of three instrumentation groups: Kedo-Nano Plus rotary files, Kedo-S Square rotary files, or manual K-files.
• Receive pulpectomy treatment using the assigned instrumentation technique.
• Undergo radiographic assessment of obturation quality following treatment.
• Have postoperative pain assessed using the Wong-Baker Faces Pain Rating Scale at 6, 12, 24, and 48 hours after treatment.

Inclusion Criteria:

• Normal, healthy children between five and eight years of age
• Frankl's behavior rating: positive or definitely positive
• Primary mandibular molars diagnosed with irreversible pulpitis
• Intact crown structure suitable for rubber dam placement
• Intraoral periapical radiograph showing primary molars with at least two-thirds of each root remaining

Exclusion Criteria:

• Children with special healthcare needs or systemic medical conditions
• Frankl's behavior rating: negative or definitely negative
• Primary molars with unrestorable crown structure
• Teeth with severe mobility or pathological root resorption
• Children or parents who refused to participate in the study