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In Vitro Comparison of Apical Debris Extrusion during Root Canal Preparation in Primary Molars Using Two Rotary Systems
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N Entezari Moghaddam    , F Heidari , M Aghaali , SM Sadeghi , E Vakili , A Saleh , A Mehdipour * |
| 2.Cellular and Molecular Research Center, Qom University of Medical sciences, Qom, I.R.Iran. , mehdipoor_aida@yahoo.com |
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Abstract: (404 Views) |
Background and Objective: Extrusion of debris from the apex of the tooth is considered as the first cause of pain after root canal treatment, and the amount of extruded debris is related to the technique and degree of canal cleaning and shaping. The aim of the present study was to compare apical debris extrusion during root canal preparation in primary molars using conventional and reciprocal rotary systems.
Methods: This in vitro study was conducted on 32 deciduous mandibular second molars (16 in the conventional rotary file group and 16 in the reciprocal file group). The distal roots of the teeth in two groups were prepared to the working length. The extruded debris was collected in 15 ml Falcon tubes. Then, due to the presence of irrigating solution extruded from the apex, the tubes were placed in an incubator for 5 days. Then, the tubes were placed on a scale with an accuracy of 0.0001 g and the weight of the tubes was measured again. The amount of extruded debris for each tube was obtained based on the difference between the two numbers obtained from the weighing. Finally, the data were analyzed.
Findings: The mean weight of debris in the conventional and reciprocal groups was 0.0115±0.0201 g and 0.0122±0.0051 g, respectively. The mean rank of the conventional and reciprocal groups was 11.69 and 21.31, respectively. The rate of apical debris extrusion was significantly higher in the reciprocal group (p=0.003).
Conclusion: According to the results of the present study, the engine-driven reciprocal cleaning system extrudes more apical debris compared to the conventional cleaning system. |
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| Keywords: Pediatric Dentistry, Endodontics, Root Canal Treatment, Primary Teeth. |
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Full-Text [PDF 326 kb]
(43 Downloads)
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Type of Study: Interventional |
Subject:
Dentistry (Endo)
Received: 2024/06/27 | Accepted: 2024/11/30 | Published: 2025/10/5
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