The primary aim is to compare the behavior of the children during using conventional manual instrumentation versus rotary instrumentation by single rotary system for pulpectomy in primary molars through a Randomized Clinical Trial.
The main question it aims to answer is:
Is there a difference in the behavior of the children when using single rotary file system versus manual instrumentation in pulpectomy in primary molars?
Restorable mandibular second primary molars with clinical signs or symptoms of irreversible pulpitis.
Absence of internal or external root resorption.
Absence of periapical or inter-radicular radiolucencies.
Uncooperative children.
Children with systemic disease.
Physical or mental disabilities.
Refusal of participation.
Parallel
Fanta AF F one rotary files 20 taper 4
Devicesingle rotary file system Fanta AF F one rotary files 20 taper 4
Manual files (k files ,Mani, Inc., Japan).
Devicemanual files (k files, Mani, Inc., Japan) size 15,20,25,30
• child's behavior level
child's behavior level using Frankl's behavior rating scale * rate 1 means definitely negative "refusal of treatment , fearfulness" * rate 2 means negative "reluctance to accept treatment , uncooperative" * rate 3 means positive "acceptance of treatment , patient follows the dentist's directions" * rate 4 means definitely positive " good rapport with the dentist , laughter and enjoyment"
Post-operative pain
Asking the patient and/or Guardian using a 4-point pain scale, the parent of each participant will receive 6 flashcards that include four faces and a word describing each face. 0 - None: No pain present. 1. \- Mild: Pain is present but not distracting; easily ignored. 2. \- Moderate: Pain is distracting; manageable but limits activities. 3. \- Severe: Intense pain; unable to concentrate, requires immediate action or medication.
Obturation quality
Periapical radiograph (Using Coll and Sadrian criteria)
Instrumentation time
using stopwatch
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