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Erschienen in:
17.03.2020 | Original Scientific Article
Clinical evaluation of instrumentation time and quality of obturation using paediatric hand and rotary file systems with conventional hand K-files for pulpectomy in primary mandibular molars: a double-blinded randomized controlled trial
Erschienen in: European Archives of Paediatric Dentistry | Ausgabe 6/2020
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Aim
The present study aims to comparatively evaluate the instrumentation time and obturation quality using paediatric manual (Kedo-SH) and rotary (Kedo-S and Kedo-SG Blue) with conventional manual (Hand K-files) instrumentation technique for pulpectomy in primary mandibular molars.
Materials and methods
A double-blinded randomized controlled trial was designed, recruiting participants with pulpally involved primary mandibular molars requiring pulpectomy in the age group of 6–9 years old. Sixty primary mandibular molars were randomly allocated to either of the four intervention groups: Group I: 15 teeth were instrumented using hand K-files (control group); Group II: 15 teeth were instrumented with paediatric rotary files (Kedo-S); Group III: 15 teeth were instrumented with paediatric hand files Kedo-SH (experimental group) and Group IV: 15 teeth were instrumented with paediatric rotary file system Kedo-SG Blue. Instrumentation time was recorded during root canal preparation and post-operative quality of obturation in each group was also assessed. Extracted data was subjected to statistical analysis using Chi-square, One-way ANOVA and post hoc Tukey test.
Results
Mean instrumentation time was significantly reduced for Kedo-SG Blue (2.7840 ± 0.34217) min-s followed by Kedo-S (3.4827 ± 0.48657), Kedo-SH (5.8800 ± 0.48345) min-s and hand K-files (6.2167 ± 0.30978) min-s (p = 0.0005). A statistically significant difference was found in the obturation quality (p = 0.001) between the four groups with higher percentage of optimal fillings observed with rotary Kedo-SG Blue (80%) followed by Kedo-SH (46.7%); Kedo-S (40.0%) and hand K-files (20%).
Conclusions
On comparative evaluation, a marked reduction in instrumentation time and superior quality of obturation was found with rotary Kedo-SG Blue file system followed by Kedo-SH, Kedo-S and hand K-files.