Evaluation of Bacterial Reduction After Pulpectomy in Primary Molars

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age4-6
SponsorCairo University

About this trial

The primary aim of the study is to compare the bacterial reduction in pulpectomy of primary molars using a single rotary file system versus conventional manual instrumentation.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Children age 4 to 6 years

Medically free children

Cooperative children

Restorable mandibular second primary molars with signs or symptoms of irreversible pulpitis

Disqualifiers

Uncooperative children

Children with systemic disease

Children with physical disability

Children with mental disability

Trial design

Design model

Parallel

Treatments tested in this trial

  • Rotary Instrumentation

    Procedure/Surgery

    After opening the access cavity, the root canal patency will be checked for all the canals located using a size #15 (0.02%) K file, then a single rotary file (AF F One, FANTA, China) (20 taper 4) will be adjusted to the desirable working length depending on an electronic apex locator (1 mm shorter than the apex). This file will be used in the pulpectomy procedure using a brushing motion and will be irrigated with saline.

  • Manual Instrumentation

    Procedure/Surgery

    After opening the access cavity, manual files (K files, Mani, Inc., Japan) of sizes 15, 20, 25, and 30 will be adjusted to the desirable working length depending on an electronic apex locator (1 mm shorter than the apex). These files will be used in the pulpectomy procedure using a brushing motion and will be irrigated with saline.

Treatment groups

34 Participants
are divided into 2 treatment groups
Group A: Rotary Instrumentation GroupExperimental treatment 1 intervention
Group B: Manual Instrumentation GroupExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Intracanal Bacterial Load Reduction

Reduction in intracanal bacterial count after chemo-mechanical preparation during pulpectomy of primary molars. Microbiological samples will be collected from the root canals before instrumentation (S1) and after completion of instrumentation (S2) using sterile paper points. Samples will be cultured on brain heart infusion agar plates, and bacterial growth will be quantified by counting colony-forming units (CFU). The difference in CFU between S1 and S2 will be used to determine the level of bacterial reduction achieved by rotary instrumentation compared with manual instrumentation.

Time frame
Immediately before instrumentation and immediately after completion of chemo-mechanical preparation during the same treatment visit.

Secondary outcomes

1

Postoperative 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.

Time frame
at 6, 12, 24, 48, and 72 hours and 1 week after treatment.
2

child's behavior level.

will be recorded by using the FRANKEL 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."

Time frame
Immediately after treatment.
3

Instrumentation time

stopwatch

Time frame
during the procedure, starting from anesthesia till end of procedure
4

Clinical success

1. absence of swelling will be recorded by visual examination 2. absence of sinus or fistula will be recorded by visual examination 3. pathologic mobility will be recorded by mobility test (pressure using the end of two dental mirrors)

Time frame
At 3, 6, and 12 months

Other outcomes

Sponsors and contacts

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