Cleaning capacity of hybrid instrumentation technique using reamer with alternating cutting edges system files: Histological analysis

Júnior, Emílio Carlos Sponchiado; Fonseca, Tiago Silva da; Frota, Matheus Franco da; Carvalho, Fredson Márcio Acris de; Marques, André Augusto Franco; Garcia, Lucas da Fonseca Roberti

doi:10.4103/0976-237x.132330

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…[ 11 ] as well as Júnior et al . [ 12 ] showed lower residual remains scores at the apical 3 rd of radicular canals. The likely justification for this might be the oval form of the canal at the coronal, middle 3 rd while attaining a round contour as it advances toward the apex.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Cleaning Efficacy of Different Rotary Files in Primary Teeth—An In vitro Study

Alqarni

2023

Journal of Pharmacy and Bioallied Sciences

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Aim: The aim of the present study was to comparatively assess the cleansing efficiency of dissimilar rotary files in deciduous teeth. Materials and Methods: Forty-five deciduous anterior teeth that had been subjected to extraction were chosen for this research. The teeth were included if they had a minimum of 2/3rd undamaged root portions. Coronal entrée was completed using round diamond burs. All 45 samples were allocated at random to one of the following three groups: Group I: Control group in which the radicular canal was not subjected to any form of instrumentation, Group II: The radicular canal was subjected to instrumentation employing rotary ProTaper files, Group III: The radicular canal was subjected to instrumentation with rotary MTwo files. The samples were subjected to immersion in a succession of diluted ethyl alcohols to permit dehydration: With a change of solution every eight hours, the first 16 hours were spent in 70% alcohol, followed by eight hours in 80% alcohol, eight hours in 95% alcohol, and eight hours in 100% alcohol. The samples thus subjected to dehydration were cleared by immersion in methyl salicylate for six hours. Under a stereomicroscope with a 10x magnification, the root canals were examined by a person who was blinded to the groups in order to look for any traces of ink in the coronal, middle, and apical third of the canals. Results: In the control group, greater residual remains were present in the apical 3rd at 2.16 ± 0.08 followed by the coronal 3rd at 2.02 ± 0.14, and then in the middle 3rd at 1.88 ± 0.10. While using the ProTaper files, greater residual remains were present in the middle portion at 1.68 ± 0.16, followed by the coronal third at 0.94 ± 0.09, then the apical third at 0.98 ± 0.22. Greater residual remains were again noted with the MTwo files in the mid-portion at 1.44 ± 0.18, followed by the coronal part at 0.86 ± 0.10 and then the apical part at 0.82 ± 0.04. Differences among these groups were statistically significant with a P value < 0.001. Conclusion: The present study concluded that either of the file types used exhibited reasonably lower remnant score values in the apical third versus the middle/coronal thirds. Nonetheless, MTwo type files delineated superior capacity at removing debris versus the ProTaper file types at the apical level.

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Section: Discussionmentioning

confidence: 99%

Comparison of Cleaning Efficacy of Different Rotary Files in Primary Teeth—An In vitro Study

Alqarni

2023

Journal of Pharmacy and Bioallied Sciences

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“…[ 1 ] In addition to the anatomy of curved root canals, their preparation is limited as it is difficult to control the instrument inside the endodontic space. [ 2 ] Due to their curvature, force components tend to displace the instrument in the opposite direction, which may cause apical transportation, as well as root perforations. [ 2 3 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 2 ] Due to their curvature, force components tend to displace the instrument in the opposite direction, which may cause apical transportation, as well as root perforations. [ 2 3 ]…”

Section: Introductionmentioning

confidence: 99%

Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals

et al. 2015

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Aim:To evaluate the apical transportation induced by two instrumentation techniques in severely curved simulated canals.Materials and Methods:Forty simulated canals were divided into two groups (n = 20), according to the following instrumentation techniques: ProTaper Universal Manual System and a hybrid technique. The simulated canals in the ProTaper group were prepared following the technique recommended by the manufacturer: SX files in the cervical third of the root canal and S1, S2, and F1 files up to the working length. In the hybrid group, preparation was performed with K-files sizes 15, 20, and 25 to the working length, followed by cervical preparation with Gates Glidden burs 1, 2, and 3. Apical finishing was performed with the ProTaper manual files S2 and F1. To analyze apical transportation, the simulated canals were photographed before and after preparation at ×8. The images of the root canals pre- and post-instrumentation were superimposed to measure the distance between the inner and outer walls along the first 3 mm of the apical third.Results:The hybrid group presented the highest apical transportation values; however, with no statistically significant difference in comparison with the ProTaper group (P > 0.05).Conclusions:Both techniques induced similar apical transportation in the original path of the simulated root canals.

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Accumulated Hard Tissue Debris Produced during Reciprocating and Rotary Nickel-Titanium Canal Preparation

De‐Deus¹,

Marins²,

Silva³

et al. 2015

Journal of Endodontics

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Cleaning capacity of hybrid instrumentation technique using reamer with alternating cutting edges system files: Histological analysis

Cited by 4 publications

References 29 publications

Comparison of Cleaning Efficacy of Different Rotary Files in Primary Teeth—An In vitro Study

Comparison of Cleaning Efficacy of Different Rotary Files in Primary Teeth—An In vitro Study

Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals

Accumulated Hard Tissue Debris Produced during Reciprocating and Rotary Nickel-Titanium Canal Preparation

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