scholarly journals Root canal cleaning with different reciprocating and rotary instrumentation systems

2019 ◽  
Vol 9 (1) ◽  
pp. 1-8
Author(s):  
Selen İnce Yusufoğlu ◽  
Hale Arı Aydınbelge
Keyword(s):  
Root Canal ◽  
File Systems ◽  
Smear Layer ◽  
Human Teeth ◽  
Root Canals ◽  
Group 4 ◽  
Native Speakers Of English ◽  
Group 3 ◽  
The Mean ◽  
Group 2

Aim: The purpose of the present study was to compare the cleaning effectiveness of two reciprocating single-file systems with ProTaper Next and ProTaper Universal rotary instruments during the preparation of single-rooted extracted teeth. Methodology: Sixty freshly extracted single-rooted human teeth were randomly divided into 4 groups (n=15). In group 1, root canals were prepared with ProTaper Universal, in group 2, they were prepared with ProTaper Next, in group 3, they were prepared with WaveOne and in group 4, root canals prepared with Reciproc systems. Canals were prepared to the following apical sizes: ProTaper Universal F3, ProTaper Next X3, WaveOne Primary and Reciproc 25. The irrigant in all groups was 2ml 2.5% sodium hypochlorite (NaOCl) solution, the final irrigation after preparation all groups was 2ml NaOCl, 2ml EDTA and 2ml saline solution. The roots were split longitudinally into halves and the canals examined using a scanning electron microscope. The presence of a debris and smear layer was recorded at the coronal, middle and the apical thirds of root canals using a five-step scoring scale. Data were statistically analyzed using Kruskal-Wallis and Mann-Whitney U tests. Results: All groups showed more efficient smear layer and debris removal coronally than in the middle and apical regions, whereas the mean total debris score and the mean smear layer score in all groups were less in the WaveOne and the Reciproc groups. Conclusions: Under the conditions of this study, for root canal cleanliness Reciproc and WaveOne may be preferred rather than ProTaperUniversal and ProTaperNext.   How to cite this article: İnce Yusufoğlu S, Arı Aydınbelge H. Root canal cleaning with different reciprocating and rotary instrumentation systems. Int Dent Res 2019;9(1):1-8.   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Efektivitas Ekstrak Daun Belimbing Wuluh (Averrhoa bilimbi Linn) sebagai Bahan Pembersih Saluran Akar Gigi (The Effectiveness of Wuluh Starfruit (Averrhoa bilimbi Linn) Leaf Extract as Root Canal Cleaner)

2016 ◽  
Vol 6 (2) ◽  
pp. 82
Author(s):  
Amalia Dara N ◽  
Ira Widjiastuti ◽  
Laksmiari Setyowati
Keyword(s):  
Root Canal ◽  
Leaf Extract ◽  
Inorganic Materials ◽  
Filling Material ◽  
Root Canal Filling ◽  
Human Teeth ◽  
Group 4 ◽  
Group 3 ◽  
Group 5 ◽  
Group 2

Background: Preparation is one of the stages in endodontic treatment that always produce debris as a result of intrumentation on root canal walls. Debris consist of organic and inorganic materials. Debris will impede the penetration of disinfection materials and reduce attachment of the root canal filling material, therefore needed root canal irrigant which can remove the debris. Wuluh starfruit leaf extract (Averrhoa bilimbi Linn) contain various active compound, such as saponin. Saponin act as “surfactants” which can remove the debris. Purpose: This study was to determine the cleaning effectiveness concentration of wuluh starfruit leaf extract which can clean the root canal walls from debris. Method: Twenty five first premolar human teeth with straight single roots were randomized into five groups in which each group consist of five teeth. Those teeth instrumented with K-file and irrigated as follows: Group 1 (control) used aquadest as irrigant, group 2 used extract 5%, group 3 used extract 10%, group 4 used extract 15%, and group 5 used extract 20%. Then, those teeth were split horizontally and longitudinally in 1/3 apex. After that, the apical third of root canal walls were observed by using scanning electron microscope (SEM). Result: There were significant differences between each group (p<0,05). Group 4 and 5 had smallest median score that was 1. Saponin in wuluh star fruit leaf extract 15% has been reach critical micelle concentration (CMC). Conclusion: Wuluh starfruit leaf extract 15% effective for cleaning root canal walls from debris.

scholarly journals Effect of spreader size on microleakage of roots filled with cold lateral compaction technique

2015 ◽  
Vol 09 (03) ◽  
pp. 378-381
Author(s):  
Tugba Turk ◽  
Beyser Piskin ◽  
Hasan Orucoglu ◽  
Berdan Aydin
Keyword(s):  
Maxillary Incisor ◽  
Human Teeth ◽  
Fluid Filtration ◽  
Root Canals ◽  
Group 4 ◽  
Group 3 ◽  
Group 5 ◽  
Group 2 ◽  
Apical Leakage ◽  
Group 1

ABSTRACT Objectives: To evaluate the effect of spreader size on apical leakage of maxillary incisor teeth. Materials and Methods: A total of 75 permanent human teeth with no carious and no fracture or crack were used for this study. After removing the crown from the cementoenamel junction and the standardization of the root lengths, the specimens were randomly divided into five groups: Group 1 - Roots were not instrumented. Group 2 - Root canals were enlarged using the step-back technique to a #40 file and filled using cold lateral compaction (CLC) of gutta-percha (GP). Group 3 - During the filling procedure, the first spreader used was size 40. Group 4 - The first spreader used was size 35. Group 5 - The initial spreader used was size 25. The amount of leakage through the filled root canals was evaluated by computerized fluid filtration model. Statistical analyzes were done using Kruskal–Wallis test and Mann–Whitney test (P < 0.05). Results: There were statistically significant differences among the groups (P < 0.05). While the uninstrumented group (Group 1) had no leakage, instrumented but not filled roots (Group 2) demonstrated the highest leakage values. There were no differences between Group 3 and 4. Group 5 showed significantly less leakage than Group 3 and 4. Conclusion: Spreader size used during CLC of GP appeared to be a significant factor on apical leakage of roots. Using smaller size spreader during CLC may provide relatively less leakage.

scholarly journals Apical extrusion of debris by manual and mechanical instrumentation

2007 ◽  
Vol 18 (1) ◽  
pp. 16-19 ◽  
Author(s):  
Lilia E. Leonardi ◽  
Diana M. Atlas ◽  
Guillermo Raiden
Keyword(s):  
Root Canal ◽  
Significance Level ◽  
Root Canals ◽  
Group 4 ◽  
Apical Extrusion ◽  
Working Length ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

The aim of the present study was to assess the presence of apically extruded debris and evaluate the influence of canal curvature on the amount of debris produced by manual and mechanical techniques. Forty single-rooted mature teeth with 15 to 30 degree of root canal curvature were selected. The presence of only one foramen was confirmed using a magnifying lens. A size 15 K-file was placed up to the apical foramen to determine the patency. Working length was determined with the same instrument, 1 mm short of the foramen. According to the employed technique, the groups were labeled as follows: Group 1 - Manual instrumentation with Mor-flex files; Group 2 - Mechanical instrumentation with Cursor and Mor-flex files; Group 3 - Manual instrumentation with Flexi-cut files; Group 4 - Mechanical instrumentation with Cursor and Flexi-cut files. During instrumentation, the root canals were irrigated with 20 mL. Debris extruded through the apical foramen was collected using the Myers and Montgomery technique. The values (in mg) were: Group 1: 0.422 ± 0.683; Group 2: 0.688 ± 0.795; Group 3: 0.409 ± 0.323; Group 4: 0.810 ± 0.708. Data were analyzed statistically by ANOVA at 5% significance level. There was no statistically significant difference among the groups (p<0.05). No statistically significant differences were found between slight and moderate curvatures in terms of the amount of extruded debris (p>0.05).

Efficacy of Different Irrigating Systems on Debris and Smear Layer Removal: A Scanning Electron Microscopic Study

2021 ◽  
Vol 13 (4) ◽  
pp. 246-252
Author(s):  
Manjunath P ◽  
Sujatha I ◽  
Jayalakshmi KB ◽  
Prasannalatha Nadig ◽  
Shibani Shetty ◽  
...  
Keyword(s):  
Smear Layer ◽  
Sodium Hypochlorite Solution ◽  
Electron Microscopic ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Group 4 ◽  
Ultrasonic Irrigation ◽  
Group 3 ◽  
Group 2 ◽  
Scanning Electron

Background: The goal of this research was to see how effective various irrigation methods were at eliminating smear layer and debris. Study design: Sixty extracted single rooted human mandibular premolar teeth were used in this study. The root canals were shaped with a WaveOne large (040.08) rotary file after decoronating all the teeth to a uniform 16 mm root length. Root canals were rinsed with 6 ml of 2.5 percent sodium hypochlorite solution during instrumentation. After instrumentation, teeth were arbitrarily classified into four categories, each containing 15 specimens according to the technique of activation of final irrigant. Smear Clear solution (6 ml) was employed in all the categories as irrigating solution. In Group1- Rotary canal brush, Group 2 – EndoActivator, Group 3 – Passive ultrasonic irrigation (PUI), Group 4 – Continuous ultrasonic irrigation was employed. After sectioning the roots longitudinally, the apical, middle and coronal thirds of the canals were inspected with the help of scanning electron microscopy. Results: Group 4 was most effective in eliminating debris and smear layer at the coronal, middle, and apical thirds. But Group 4 was not significantly different to Group 3 at the middle third in eliminating debris and at middle third and apical third in elimination of smear layer. Conclusion: Continuous ultrasonic irrigation eliminated debris and smear layer most effectively, followed by PUI, EndoActivator, and Rotary canal brush. Keywords: Smear layer, Passive Ultrasonic Irrigation, Continuous ultrasonic irrigation, EndoActivator, Rotary canal brush

scholarly journals Evaluation of Smear Layer Removal by Activation Ethylene Diamine Tetra Acetic Acid 17% with Erbium Chromium: Yttrium Scandium Gallium Garnet and Diode Laser: Scanning Electron Microscopy

2020 ◽  
Vol 10 (1) ◽  
pp. 103-109
Author(s):  
Chener S. Jameel ◽  
Nawfal A. Zakaria
Keyword(s):  
Acetic Acid ◽  
Diode Laser ◽  
Laser Scanning ◽  
Smear Layer ◽  
Ethylene Diamine ◽  
Human Teeth ◽  
Root Canals ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Background and Objectives: Activation of ethylene diamine tetra acetic acid (EDTA) with diode laser and Erbium Chromium: Yttrium Scandium Gallium Garnet (Er, Cr: YSGG) proposed as a promising adjuvant to conventional protocols but, its effectiveness has been seldom addressed. The purpose of this study was to evaluate the effect of laser-activated irrigations using the diode laser and the Er, Cr: YSGG laser on removing smear layer (SL) from the root canal wall. Materials and Methods: SL was generated by preparing the root canals of extracted human teeth to a #35/0.05 two shape instrument. The SL then received treatments of one of the following: Group 1, 5 ml, 5.25% NaOCl + 5 ml, 17% EDTA Each for 60 s, Group 2 5 ml, Group 2, 5.25% NaOCl 60 s + 5 ml, 17% EDTA 40 s + Diode laser 980 nm 20 s 5 ml, and Group 3, 5.25% NaOCl 60 s + 17% EDTA 35 s + Er, Cr: YSGG with RFT-2 tip for five cycles of 5 s. Results: The activation of EDTA with diode laser 980 nm shows to be most effective in the SL in the apical and coronal third could be very useful adjutant in endodontic treatment due to its compactness.

Evaluation of the Efficacy of EASYDO ACTIVATOR Irrigation Technique in Intracanal Smear Layer and Debris Removal from Mature Permanent Teeth

2021 ◽  
Author(s):  
Shao-Hui Zhang ◽  
Zheng-Rong Gao ◽  
Dusenge Marie Aimee ◽  
Yao Feng ◽  
Jing Hu ◽  
...  
Keyword(s):  
Smear Layer ◽  
Permanent Teeth ◽  
Passive Ultrasonic Irrigation ◽  
Root Canals ◽  
Effective Removal ◽  
Apical Direction ◽  
Debris Removal ◽  
Ultrasonic Irrigation ◽  
Group 3 ◽  
Group 2

Abstract EASYDO ACTIVATOR (EA) is a continuously vibrational device for root canals irrigation, but its cleaning effectiveness has not been evaluated by any published reports. We were aiming to evaluate whether EA results in a greater intracanal smear layer and debris removal than conventional needle irrigation (NI) and passive ultrasonic irrigation (PUI). Twenty-seven single-rooted teeth were used. Canals were sized to R30 and irrigated with 3% sodium hypochlorite. Species were divided into three groups: Group 1: NI; Group 2: PUI; Group 3: EA. Canal walls were subjected to scanning electron microscopy. NI- and PUI-group canal cleanliness decreased from the coronal to apical direction (P < 0.05), except for EA group in the apical third. PUI removed more smear layer from the coronal and middle thirds than EA and NI (P < 0.05). PUI and EA were superior to NI regarding debris removal (P < 0.05). The smear layer and debris from the coronal and middle thirds were effectively removed with EA and PUI. More effective removal occurred from the apical third for EA compared with PUI (P < 0.05). Both methods removed smear layer and debris better than NI, providing a theoretical basis for the clinical application of EA.

scholarly journals Effectiveness of a silicon-based root canal sealer for filling of simulated lateral canals

2007 ◽  
Vol 18 (1) ◽  
pp. 20-23 ◽  
Author(s):  
João Vicente Baroni Barbizam ◽  
Matheus Souza ◽  
Doglas Cecchin ◽  
Jakob Dabbel
Keyword(s):  
Root Canal ◽  
In Vitro Study ◽  
Root Canal Sealer ◽  
Human Teeth ◽  
Significance Level ◽  
Working Length ◽  
Group 3 ◽  
Group 2 ◽  
Silicon Based

The purpose of this in vitro study was to evaluate the ability of a silicon-based root canal sealer, compared to zinc oxide and eugenol and an epoxy resin-based sealers, for filling of simulated lateral canals. Thirty extracted single-rooted human teeth were selected, conventional access was made and the working length was established 1 mm from the apical foramen. Three simulated lateral canals, one in each root third (coronal, middle and apical) were prepared in both the mesial and distal surfaces of each tooth using a size 15 reamer adapted to a low-speed handpiece. Each root canal was instrumented using ProTaper rotary files up to file F3 at the working length, and then irrigated with 2.5% NaOCl followed by EDTA. The teeth were assigned to 3 groups (n=10), according to the root canal sealer: Roeko Seal (Group 1), Sealer 26 (group 2) and Grossman's sealer (Group 3). Gutta-percha cold lateral condensation technique was performed in all groups. Postoperative radiographs were taken and the images were projected for evaluation of the quality of lateral canal filling. Data were submitted to statistical analysis by Kruskal Wallis test at 5% significance level. The results showed that Grossman's sealer filled a larger number of lateral canals than Roeko Seal (p<0.05) and Sealer 26 (p<0.01). It may be concluded that Roeko Seal silicone-based root canal sealer was not as effective as the Grossman's sealer for filling of simulated lateral canals. The lateral canals localized in the apical third of the root were more difficult to be filled.

scholarly journals The effect of different irrigation techniques on the quality of cleaning of root canal walls

2008 ◽  
Vol 55 (4) ◽  
pp. 221-228
Author(s):  
Violeta Pavlovic ◽  
Slavoljub Zivkovic
Keyword(s):  
Root Canal ◽  
Smear Layer ◽  
Sodium Hypochlorite Solution ◽  
Efficient Removal ◽  
Human Teeth ◽  
Root Canals ◽  
Group I ◽  
Different Types ◽  
The Difference

Aim: To evaluate the effect of irrigation techniques, i.e. different types of irrigation needles, on the quality of cleaning of root canal walls using scanning electron microscopy (SEM). Material and Method: The study was conducted on 16 extracted, single-rooted, human teeth. The samples were allocated to two experimental groups depending on the type of the irrigation needle. Conventional needles were used for the irrigation of Group I and laterally perforated ones for Group II. All root canals were instrumented using K files and the Step-back technique. During instrumentation, all samples were irrigated with 2.5 % sodium hypochlorite solution followed by final irrigation with 17 % EDTA for 1 min. After that, all samples were irrigated with 10 ml of distilled water. The roots were, then, sectioned longitudinally and middle one third of each root canal was analyzed using SEM. Quantitative analysis was based on criteria by H?lsmann et al. Results: The obtained results showed that the more efficient removal of debris and the smear layer was accomplished in the group of samples irrigated using laterally perforated needles than conventional needles. The difference between the investigated irrigation techniques were statistically significant (p<0.01). Conclusion: The use of laterally perforated needles for irrigation allows more efficient cleaning of root canal walls, i.e. the removal of debris and the smear layer.

scholarly journals Comparative evaluation of shaping ability of trunatomy and protaper gold files in curved canals using cone?beam computed tomography: An invitro study

2021 ◽  
Vol 6 (2) ◽  
pp. 101-105
Author(s):  
Kadam Krutika Kiran ◽  
Vagarali Hemant ◽  
Pujar Madhu A ◽  
Tamase Aishwarya S ◽  
Sahana Umesh
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Cone Beam ◽  
Human Teeth ◽  
Root Canals ◽  
Before And After ◽  
Canal Transportation ◽  
Group 2 ◽  
Shaping Ability

This study aimed to compare the canal transportation and canal centering ability in the preparation of curved root canals after instrumentation with TruNatomy (TN) (TN; Dentsply Sirona, Maillefer, Ballaigues, Switzerland) and ProTaper Gold (PG) (PG; Dentsply, Tulsa Dental Specialties, Tulsa, OK, USA) files using cone‑beam computed tomography (CBCT). 30 Single rooted extracted human teeth with root curvature ranging from 20-30° according to Schneider’s method were selected. Teeth with any visible cracks or fractures, calcifications, previous root canal treatments were excluded. The teeth were randomly assigned into two groups i.e. Group 1-TN and Group 2-PG (n = 15 each). The teeth were instrumented according to manufacturer’s guidelines for both the groups. Canals were scanned using a CBCT scanner before and after preparation to evaluate the transportation and centering ratio at 3 mm, 5 mm, and 7 mm from the apex. The data analysis was done using SPSS software and the test used was independent sample t test for comparison between the 2 groups.Data obtained suggested that TN group presented lesser canal transportation at the middle third of the root. The PG group showed better centering abitily at apical third of the root canal when both the groups were compared. TN resulted in less transportation than PG at the middle third, and PG showed better centering ability at the apical third. Overall, both systems safely prepared root canals, causing minimal errors.

scholarly journals Acute Phase Effect of Memantine Hydrochloride in Experimental Peripheral Nerve Injury

2019 ◽  
Vol 08 (02) ◽  
pp. 113-118
Author(s):  
Hakan AK ◽  
Iskender Samet Daltaban ◽  
Sevilay Vural
Keyword(s):  
Peripheral Nerve ◽  
Nerve Injury ◽  
Peripheral Nerve Injury ◽  
Group 4 ◽  
Tnf Α ◽  
Group 3 ◽  
The Mean ◽  
Cox 2 ◽  
Group 2 ◽  
Group 1

Abstract Aim In this experimental study, we aimed to investigate possible healing effects of memantine hydrochloride, an N-methyl-d-aspartate (NMDA) antagonist, with clinical, biochemical, and histopathologic methods on acute peripheral nerve injury (PNI). Material and Method Forty-eight adult Wistar albino rats were divided into four groups (n = 12). The groups were arranged as sham-operated group (group 1), acute compression model group (group 2), trauma + low-dose memantine group (group 3), and trauma + high-dose memantine group (group 4). Memantine was administered intraperitoneally for 7 days. Subjects were sacrificed after the measurement of the sciatic nerve function index (SNFI) on the eighth day. Cyclooxygenase 2 (COX-2) and tumor necrosis factor-α (TNF-α) levels were measured in nerve tissues. Histopathologic evaluation was performed by electron microscopy. Results The mean sciatic function index (SFI) scores of groups 1 to 4 were +3.27 (standard deviation [SD] ±4.66),–18.2 (SD = ±11.7),–8.5 (SD = ±7.5), and–2.5 (SD = ±9), respectively. The mean COX-2 values were 0.98 ng/mL (SD = ±0.51), 1.89 ng/mL (SD = ±0.22), 1.39 ng/mL (SD = ±0.36), and 1.35 ng/mL (SD = ±0.59), respectively. TNF-α values were 0.09 pg/mL (SD = ±0.23), 1 pg/mL (SD = ±0.96), 0.46 pg/mL (SD = ±0.55), and 0.48 pg/mL (SD = ±0.78), respectively. Group 1 showed normal histologic findings. Group 2 showed marked edema particularly in large-diameter myelins. Myelin configurations were detected in large myelinated axons in group 3. The number of mast cells in endoneurium was high in group 4. Conclusion The efficacy of memantine in the acute phase of PNI appears to be significant according to the SNFI and biochemical tests. However, histologic findings suggest that high doses of memantine have a negative effect on PNI.

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