Comparison of influence of different manufacturing methods on the cleaning efficiency of rotary nickel–titanium files

Çelik, Davut; Taşdemir, Tamer; Er, Kürşat

doi:10.1002/jemt.22157

Cited by 4 publications

(2 citation statements)

References 35 publications

(43 reference statements)

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“…Previous studies have reported that large taper instruments have a better debridement effect on the coronal and middle regions of root canals [ 29 , 30 ]. In this study, when the root canal width was #25, there were no significant differences between the root canals with a taper of 0.02 and those with a taper of 0.06 in the coronal and middle regions when PIPS was used.…”

Section: Discussionmentioning

confidence: 99%

The antibacterial efficacy of photon-initiated photoacoustic streaming in root canals with different diameters or tapers

et al. 2021

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Background In recent years, the concept of minimally invasive endodontics has been proposed, which could be described as preventing or treating diseases by preserving more dental tissue and creating minimal damage. In the process of root canal preparation, it was recommended to use instruments with a smaller taper to preserve more tooth tissue and improve the preservation rate of the affected teeth. Photon-induced photoacoustic streaming (PIPS) was a new type of laser-activated irrigation technology, which was now widely used in endodontic treatment. The purpose of this article was to evaluate the bactericidal effect of PIPS with NaOCl in root canals with different widths or tapers. Methods Twenty-three maxillary first molars with three independent root canals were included in this study. The mesiobuccal (MB), distobuccal (DB), and palatal (P) root canals were prepared at sizes of #10/.02, #25/.02, and #25/.06, respectively. After being incubated with a bacterial suspension for 4 weeks, the specimen were irrigated with 2% NaOCl activated by conventional needle irrigation (CNI) (n = 10) or PIPS (n = 10). Three specimen were not treated (control group). Before and after irrigation, the presence of bacteria was assessed with an adenosine 5'-triphosphate (ATP) assay kit and biofilms were assessed using confocal laser scanning microscopy and scanning electron microscopy. Results In specimen prepared using PIPS irrigation, the ATP was reduced by more than 98%. When the root canal taper was 0.02, the size #25 root canals had a higher percentage of dead bacteria than the size #10 root canals in all regions (P < 0.05) in the PIPS group. When the root canal width was #25, the 0.02 taper group had a higher percentage of dead bacteria than the 0.06 taper group in the apical region (P < 0.05), except coronal and middle regions (P > 0.05). PIPS irrigation results in a greater percentage of dead bacteria and reduction of ATP in size #10/.02 root canals than CNI in size #25/.06 root canals in three regions (P < 0.05). Conclusion Increasing the width from #10 to #25 improves the bactericidal effect of PIPS in the root canal. Increasing the taper of the root canal from 0.02 to 0.06 at size #25 did not affect the bactericidal effects of PIPS. PIPS resulted in more dead bacteria in specimen with smaller tapers and root canal widths than CNI. PIPS can be used to clean the smear layer in the coronal region and open the dentin tubules. Clinical significance: Activation of irrigants with PIPS brought about significant bacterial reduction smaller tapers and width root canals compared to CNI, which was beneficial to prevent excessive loss of tooth tissue and conserve the structural integrity of teeth.

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Section: Discussionmentioning

confidence: 99%

The antibacterial efficacy of photon-initiated photoacoustic streaming in root canals with different diameters or tapers

et al. 2021

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“…This finding is consistent with the previous studies. 37,38 Celik et al 37 compared the cleaning effectiveness of Twisted File, GT series X, Revo-S, RaCe, Mtwo, and ProTaper Universal rotary files in curved canals. No statistically significant differences were found between the groups in terms of debris scores and smear layer scores, in agreement with the present study.…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Manual, Rotary and Reciprocal Systems on Primary Teeth Root Canals: An In Vitro Scanning Electron Microscopy Study

Arslan

Aydınoğlu

Baygın³

et al. 2019

Cumhuriyet Dental Journal

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Objective: To evaluate the residual debris and smear layer formation, and also preparation time of one or multifile manual, rotary, and reciprocal systems on primary teeth. Materials and methods:A total of 75 primary mandibular molar teeth were randomly divided to five groups (n=15). The distal canals of teeth were shaped with each of the K file, Protaper, Twisted File, OneShape, and Reciproc systems. Preparation time was also recorded. Longitudinal sections groups were prepared and processed for observation under scanning electron microscopy (SEM) at a standard magnification of X1000 for smear layer and X200 for residual debris. The presence of smear layer and residual debris was evaluated by two trained operators. The data of preparation time and also debris and smear scores were analyzed using ANOVA and the Kruskal-Wallis test, respectively.Results: Reciproc and OneShape systems had significantly less instrumentation time than all other groups (p<0.001). The results of statistical analyses were the same for the residual debris and smear layer scores. In the coronal thirds of the canals, the canal preparation with the Protaper system resulted in significantly less debris and smear layer compared with the OneShape system (p=0.015). In the middle thirds of the canals, OneShape and Reciproc systems had more residual debris and smear layer than the Protaper system (p<0.05). In the apical thirds of the canals, the use of the Protaper instruments resulted in less debris and smear layer than the Reciproc system (p=0.034). Conclusions:Within the limits of this study, the Protaper system, which showed better cleaning efficacy and was also faster than the manual system, can be an effective alternative to other systems in the root canal treatment of primary molars. More in vitro and clinical investigations are needed on root canal treatment of primary teeth.

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Effect of Separated Files on Biomechanics of Premolars: von Mises Stress Analysis via a FEM Study

Ahadov

Bellí

2023

Strength Mater

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Comparison of influence of different manufacturing methods on the cleaning efficiency of rotary nickel–titanium files

Cited by 4 publications

References 35 publications

The antibacterial efficacy of photon-initiated photoacoustic streaming in root canals with different diameters or tapers

The antibacterial efficacy of photon-initiated photoacoustic streaming in root canals with different diameters or tapers

Comparative Analysis of Manual, Rotary and Reciprocal Systems on Primary Teeth Root Canals: An In Vitro Scanning Electron Microscopy Study

Effect of Separated Files on Biomechanics of Premolars: von Mises Stress Analysis via a FEM Study

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