Journal articles: 'Reciproc instruments'

1

Uygun, Ahmet Demirhan. "Cyclic fatigue resistance of VDW.ROTATE and Reciproc Blue nickel-titanium files at root canal temperature." Journal of Dental Research, Dental Clinics, Dental Prospects 14, no. 3 (September 21, 2020): 177–80. http://dx.doi.org/10.34172/joddd.2020.032.

Full text

Abstract:

Background. This study aimed to compare the VDW.ROTATE instruments with the Reciproc Blue instruments in different kinematics in terms of the cyclic fatigue resistance. Methods. Sixty instruments, 40 VDW.ROTATE and 20 Reciproc Blue instruments, were divided into three groups (n=20): VDW.ROTATE was used in both continuous rotation and reciprocation, and Reciproc Blue was used in reciprocation only. The cyclic fatigue resistance test was carried out in an artificial canal (60°, r=3 mm) at an intracanal temperature of 35±2°C until fracture, and the time to fracture was recorded in seconds. The data were analyzed statistically using Kruskal–Wallis and Tamhane’s T2 tests (P<0.05). Results. DAll the reciprocating motion groups resulted in a longer mean duration to failure than the continuous rotation motion group (P<0.05). Conclusion. It was observed that the Reciproc Blue instruments had higher cyclic fatigue resistance than VDW.ROTATE instruments (P<0.05). Recent studies have shown that reciprocal movement increases cyclic fatigue resistance compared to rotational movement. The VDW.ROTATE instrument, which has a similar size, design, and alloy as the Reciproc Blue instrument, can also be used by clinicians in reciprocating motion with endo motors capable of reciprocating in different directions. However, even if the cyclic fatigue resistance increases by using VDW.ROTATE instruments in reciprocation, the cyclic fatigue resistance is lower than Reciproc Blue instruments.

APA, Harvard, Vancouver, ISO, and other styles

2

Estrela, Carlos, Felipe C. Sampaio, Ana PP Brito, Heloisa HP Veloso, Ana HG de Alencar, Daniel de A Decurcio, and José AP de Figueiredo. "Flute and Shank Dimensions of Reciprocating Instruments before and after Simulated Root Canal shaping." Journal of Contemporary Dental Practice 18, no. 3 (2017): 198–204. http://dx.doi.org/10.5005/jp-journals-10024-2016.

Full text

Abstract:

ABSTRACT Aim This study analyzed the effect of the dimensions of the flute and shank in the first 4 mm of instrument tips on the deformation and dimensional changes of reciprocating instruments after root canal shaping (RCS). Materials and methods The reciprocating instruments used were Reciproc® R25, R40, and R50; WaveOne® Small, Primary, and Large; and Unicone® #20, #25, and #40. Scanning electron microscopy images of the first 4 mm of the tip were acquired at 30× magnification before and after simulated curved root canals were shaped. Each instrument was used only once. The images were transferred to the AxioVision® software to measure the flute area (µm2, shank area (µm2), flute length (µm), and crosssectional diameter (µm). Student's t test for paired samples was used to compare differences before and after RCS, and analysis of variance followed by the Tukey test, to compare differences between instruments of similar sizes. The instruments were classified according to deformations after RCS. Results Reciproc® instruments had larger flutes and smaller shanks. The Reciproc® R40 had significant differences in crosssectional diameter at 0.5 mm from the tip. Reciproc® had no plastic deformations. Unicone® #20 instruments had significant differences in cross-sectional diameter at 1.5 and 3.0 mm from the tip, and #25 instruments had differences at 1.5 and 3.0 mm and in length of the second and third flutes. One #20 and three #40 instruments had plastic deformations. The differences in length of the first and fourth flutes of WaveOne® Primary and in cross-sectional diameter at 2.0 mm from the tip of WaveOne® Large were significant. Two of three WaveOne® Large instruments had plastic deformations. Conclusion Reciproc® instruments had greater flute areas and lengths and smaller shanks than Unicone® and WaveOne® instruments of similar sizes. Reciproc® instruments had a greater flute-to-shank ratio. WaveOne® instruments had the lowest flute-to-shank ratio. Unicone® instruments had the most plastic deformations. Instruments with larger flutes and smaller shanks had fewer plastic deformations after curved RCS. Clinical significance The knowledge of mechanical behavior before choosing the endodontic instrument may avoid fracture, regardless of the clinical condition, and it is essential to the success of root canal treatment. How to cite this article Sampaio FC, Brito APP, Veloso HHP, Alencar AHG, Decurcio DA, Figueiredo JAP, Estrela C. Flute and Shank Dimensions of Reciprocating Instruments before and after Simulated Root Canal shaping. J Contemp Dent Pract 2017;18(3):198-204.

APA, Harvard, Vancouver, ISO, and other styles

3

Rodrigues, Evaldo, Gustavo De-Deus, Erick Souza, and Emmanuel João Nogueira Leal Silva. "Safe Mechanical Preparation with Reciprocation Movement without Glide Path Creation: Result from a Pool of 673 Root Canals." Brazilian Dental Journal 27, no. 1 (February 2016): 22–27. http://dx.doi.org/10.1590/0103-6440201600334.

Full text

Abstract:

Abstract The aim of the present study was to prospectively assess the frequency of teeth in which the Reciproc instruments were able to reach the full working length (WL). This case series study enrolled 277 consecutive teeth requiring primary endodontic treatment performed with the Reciproc system (VDW) without a previous glide path by 3 experienced endodontists. Instruments R25, R40 or R50 were selected, respectively, for narrow, medium and large canals, according to the preoperative radiographs, as per manufacturer recommendation. Canals were instrumented and classified as reaching the full WL (RFWL) and not reaching the full WL (NRFWL), according to the ability of the Reciproc instrument to reach without a glide path the full electronically determined WL. Finally, canals were filled using a single matched cone technique. Pearson's squared-chi test compared the frequency distributions of canals classified as RFWL and NRFWL. From a total pool of 673 root canals, Reciproc instruments reached the FWL in 96.28% of cases and 3 fractures occurred. For narrow canals the percentage of RFWL was 95.37% with 3 fractures. For medium and large canals, the R40 or R50 instruments reached the FWL in 98.51% and 97.62% of the cases respectively, with no fracture. Enlarging of root canals using the Reciproc instruments up to the FWL without a glide path is successful in a great percentage of cases. This case series suggests the possibility of using a single instrument to enlarge the root canal space of teeth by a simpler approach without an a prioriglide path procedure.

APA, Harvard, Vancouver, ISO, and other styles

4

Zaccaro-Scelza, Miriam Fatima, Renato Lenoir Cardoso Henrique Martinez, Sandro Oliveira Tavares, Fabiano Palmeira Gonçalves, Marcelo Montagnana, Emmanuel João Nogueira Leal da Silva, and Pantaleo Scelza. "Noncontact 3D evaluation of surface topography of reciprocating instruments after retreatment procedures." Brazilian Dental Journal 33, no. 3 (September 2022): 38–46. http://dx.doi.org/10.1590/0103-6440202204876.

Full text

Abstract:

Abstract This study evaluated the Reciproc R25 and Pro-R 25 instruments in unused condition, after one and a second use in endodontic retreatment employing a noncontact 3D light interferometer profiler, scanning electron microscopy (SEM) and cyclic fatigue tests. Twenty single-root teeth were instrumented with Reciproc R25 and filled with gutta-percha and sealer. A 3D profiler with a 20x objective using the Mx™ software was used to evaluate the cutting blade surfaces of Reciproc R25 and Pro-R 25 (n=5 per group) in unused condition, after the first and second uses in retreatment procedures. After retreatment, SEM was used to evaluate the topographic features of the used instruments. Cyclic fatigue tests were performed to compare new to used instruments. One-way ANOVA followed by Tukey test was used to compare the tested instruments before and after the first and second uses. Student t-test was used to compare the different instruments and for cyclic fatigue evaluation. No significant differences were observed in the cutting blade surfaces of Reciproc and Pro-R before and after one and two uses (p>0.05). Reciproc without use showed higher Sa and Sq when compared to Pro-R without use (p<0.05). No differences were observed between Reciproc and Pro-R after one and two uses (p>0.05). New and unused Reciproc showed longer time to fracture than Pro-R instruments (p<0.05), and only Pro-R showed differences between new and used instruments (p<0.05). Retreatment procedures with Reciproc and Pro-R did not change the surface topography of instruments. Reciproc had greater resistance to cyclic fatigue compared with Pro-R.

APA, Harvard, Vancouver, ISO, and other styles

5

Jusku, Alexandr, Jan Tomáštík, Lukáš Václavek, Petr Jirásek, Ľuboš Harvan, Pavel Holík, and Radim Čtvrtlík. "Physical Properties of Modern Reciprocal Endodontic Systems and Fatigue Failure Testing in Simulated Clinical Conditions." Applied Sciences 11, no. 23 (November 24, 2021): 11160. http://dx.doi.org/10.3390/app112311160.

Full text

Abstract:

Instrument fracture ranks among the most crucial complications during the endodontic treatment of a tooth. In order to better understand the practical limits of the instrument, the relation between the cyclic fatigue resistance and physical properties such as hardness, modulus of elasticity, creep and surface roughness were explored. Cyclic fatigue testing in an artificial root canal at intracanal temperature, nanoindentation and 3D microscopy were used for evaluation of four commonly used thermomechanically treated NiTi endodontic instruments (Unicone Plus 6/025, Unicone 6/025, Reciproc Blue R25 and WaveOne Gold Primary). Cyclic fatigue results were analyzed using the Kruskal–Wallis, Mann–Whitney and Bonferroni corrections. The wear resistance of Unicone 6/025 instruments was significantly lower compared to all other instruments (p < 0.05). WaveOne Gold Primary was significantly less resistant than Unicone Plus 6/025 and Reciproc Blue R25, while the difference between Reciproc Blue R25 and Unicone Plus 6/025 was insignificant (p > 0.05). These results are in correlation with measurements of local mechanical properties (hardness, elastic modulus and their ratios H/E and H3/E2). Even though surface roughness, area of cross-section and shape of instruments are important factors affecting instruments behavior, thermal processing appears to be the most important.

APA, Harvard, Vancouver, ISO, and other styles

6

Keskin, Neslihan Büşra, and Gürkan Güneç. "Comparison of Cyclic Fatigue Resistance of Heat-Treated Nickel-Titanium Reciprocating Instruments at the Intracanal Temperature." Balkan Journal of Dental Medicine 25, no. 2 (July 1, 2021): 87–91. http://dx.doi.org/10.2478/bjdm-2021-0014.

Full text

Abstract:

Summary Background/Aim: The aim of the present study was to compare the cyclic fatigue resistance of NiTi files running with reciprocal motion and having different characteristics (RPC Blue, WOG, EndoArt Wise Reciproc Gold, EndoArt Wise Reciproc Blue) at the intracanal temperature (35°C) by using NaOCl irrigation solution. Material and Methods: Totally 60 WaveOne GOLD (Dentsply-Sirona, Ballaigues, Switzerland), Reciproc Blue (VDW, Munich, Germany), EndoArt Wise Reciproc Gold, and EndoArt Wise Blue (Inci Dental Productions Co, Istanbul, Turkey) (n= 15) files were used. Each of the rotary files were tested at the intracanal temperature (35°C) using a dynamic model in a stainless-steel artificial canal with an inner diameter of 1.5 mm, 60° angle of curvature, and 2mm radius of curvature until fracture occurred. The device automatically stopped at the moment of fracture and the number of cycles to the fracture was calculated as per second. The lengths of fractured parts were measured using a digital microcaliper. The One-Way Analysis of Variance (ANOVA) and Tukey’s post-hoc tests were used for intergroup comparisons. Results: In 2 mm Radius of curvature, the EndoArt Wise Reciproc Blue group had a significantly higher time to fracture followed by the EndoArt Wise Reciproc Gold, Resiproc Blue, WaveOne Gold. No significant difference was found between EndoArt Wise Reciproc Gold and Resiproc Blue groups (P>0.05). Among the groups, there was no statistically significant difference in the lengths of fractured parts of the instruments (P> 0.05). Conclusions: EndoArt Wise Reciproc Blue files exhibited significantly higher cyclic fatigue resistance compared with other files tested in a 2-mm radius of curvature and a 60° angle in an artificial canal at the intracanal temperature.

APA, Harvard, Vancouver, ISO, and other styles

7

Boscornea-Pușcu, Andreea-Simona, Laura Orel, Oana-Alexandra Velea-Barta, Razvan Mihai Horhat, Meda-Lavinia Negruțiu, Luminița Maria Nica, Virgil-Florin Duma, Dan Ioan Stoia, Carmen Opriș, and Cosmin Sinescu. "Experimental Study of the Effects of Torsional Loading on Three Types of Nickel-Titanium Endodontic Instruments." Applied Sciences 11, no. 16 (August 5, 2021): 7224. http://dx.doi.org/10.3390/app11167224.

Full text

Abstract:

In modern endodontics, nickel-titanium (NiTi) rotary instruments are used on a large scale for root canal shaping. Nevertheless, the separation of an instrument is a serious concern during shaping. The aim of this study is to determine and compare the torsional fracture characteristics of three types of NiTi endodontic instruments, each with different cross-section designs and movements performed during root canal shaping: Endostar E3 (Endostar, Poldent Co. Ltd., Warsaw, Poland); Reciproc R25 (VDW, Munich, Germany); and Protaper Next X2 (Dentsply Maillefer, Ballaigues, Switzerland). Fifteen instruments are used in this study, divided in three groups (n = 5): Group Endostar, Group Reciproc and Group Protaper. For testing, each instrument is used to shape five simulated root canals, following which its torsional stress to failure is measured. The fracture lengths of all three groups are roughly between 2 and 3 mm from the tip. Higher values of the moment of torsion in fracture, and smaller values of the maximum twisting angle are observed for Group Endostar, as well as closer to circular cross-sections. However, the values of the shear tension are similar for all three groups, because the disadvantage given by the fracture section shape for Groups Reciproc and Protaper is compensated either by size or by intrinsic properties of the instrument material. For the shear tension the Endostar values are insignificantly increased (Kruskal–Wallis test, p = 0.207), and in the case of the maximum twist angle the Protaper values are insignificantly increased (Kruskal–Wallis test, p = 0.287). Because of the instruments shape and conicity, the analysis had to be carried out separately with regard to the length of the fractured tip. Rules-of-thumb are extracted from the study for current practice: if a blockage of the first 2 to 3 mm part of the tip can be anticipated (by the excessive curving of the instrument), the handpiece must be adjusted to torque values that do not exceed 1.5 to 2.5 N · cm for Endostar and 1 to 2 N · cm for Reciproc and Protaper instruments.

APA, Harvard, Vancouver, ISO, and other styles

8

Keskin, Cangül, Uğur Inan, Murat Demiral, and Ali Keleş. "Cyclic Fatigue Resistance of Reciproc Blue, Reciproc, and WaveOne Gold Reciprocating Instruments." Journal of Endodontics 43, no. 8 (August 2017): 1360–63. http://dx.doi.org/10.1016/j.joen.2017.03.036.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Çelik, Gül, Murat Maden, Ahmet Savgat, and Hikmet Orhan. "Shaping ability of the profile 25/0.06 and protaper F2 in rotary motion, and reciproc in simulated canals." PeerJ 6 (December 14, 2018): e6109. http://dx.doi.org/10.7717/peerj.6109.

Full text

Abstract:

Background Since the introduction of nickel–titanium (Ni–Ti) instruments to dentistry, a wide variety of Ni–Ti instruments have become commercially available. These Ni–Ti instruments are expensive, which limits their usage in developing countries and forces practitioners to use instruments repeatedly. Another problem is the possible prion cross-contamination associated with the multiple usage of endodontic instruments. In addition, the use of these instruments requires new skills and experience. In this article, the shaping capacities of two conventional rotary file systems, ProFile 25/0.06 and ProTaper F2, were reviewed and compared with the Reciproc single-file system. Methods A total of 45 simulated canals with 40° curvature, in clear resin blocks, were prepared using conventional rotary systems consisting of ProFile orifice shaping (OS) #3 and final flaring #25/.06, Reciproc R25, and ProTaper shaping file SX and finishing file F2. Pre-and post-instrumentation images were analyzed at ten different levels, using AutoCAD 2007 software. The measurement positions were defined in 1-mm intervals: positions 0–3 established the apical part, positions 4–6 constituted the middle part, and positions 7–10 established the coronal part of the canal. The amount of removed resin, the transportation, instrumentation time, change in working length (WL), instrumentation fractures, and the presence of ledge were evaluated. Data were analyzed using ANOVA, Kruskal–Wallis and independent t-test (p < 0.001). Results ProFile removed the least resin (p < 0.001) and caused less transportation than Reciproc and ProTaper, in total (p < 0.001). ProTaper caused more transportation ProFile and Reciproc in the apical part (p < 0.000). Reciproc caused more transportation than ProTaper and ProFile (p < 0.001), and the transportation tendency toward the inner aspect of the curvature in the middle part. Reciproc caused the less transportation than ProFile and ProTaper in the coronal part. The transportations tended to occur toward the outside of the curvature, except the middle part with Reciproc and at points 5 and 6 with ProTaper. There were no significant differences among the groups in terms of maintaining the original WL. Reciproc was significantly faster than the others group (p < 0.001). Only one instrument fracture (25/0.06 ProFile) was noted. All groups showed one ledge each. Discussion The results of the present study showed that both ProFile 25/06 and ProTaper F2, combined with a file used for coronal enlargement (OS3 and SX), have the potential to create satisfactory canal shape in the curved root canals. Further studies using real human teeth are needed to confirm our results.

APA, Harvard, Vancouver, ISO, and other styles

10

Mahdi, Dr Jamal A., and Dr Rafal M. Maruish. "Centering ability and canal transportation of : ProTper,Mtwo,WaveOne,Reciproc in simulated curved canals (A comparative study)." Mustansiria Dental Journal 10, no. 2 (February 25, 2018): 147–55. http://dx.doi.org/10.32828/mdj.v10i2.205.

Full text

Abstract:

Background: this study was conducted to compare the centering ability and canaltransportation of: Protaper, Mtwo, WaveOne, Reciproc in simulated curvedcanals.Materials and methods: Eighty simulated curved canals of 40° curvature weredivided into four groups and prepared to an apical size 25 using a crown-downtechnique for ProTaper instruments and single length technique for Mtwoinstruments and single file technique for WaveOne and Reciproc instruments. Thefollowing parameters were evaluated: outer and inner canal transportation andthe centering ability. The measurements were carried out at five different levels.Pre-and postoperative images of the canals were taken at 40X magnification byaid of stereomicroscope. An assessment of the canals shape was determined usingPhotoshop CS2 and AutoCAD software. The data were analyzed statistically usingANOVA and LSD test.Results: Considering canal transportation, the direction of transportation of rotaryNiTi instruments was usually toward the inner aspect at middle parts of the canaland toward the outer aspect of the curve at the apex of curve and the end ofpreparation. Waveone and Reciproc files were showed a better maintaining itsoriginal curvature with less straightening and transportation especially at the endof preparation of simulated canals. WaveOne and Reciproc instruments obtainedbetter centering ability at all levels especially at the end point of preparationcomparing with Protaper and Mtwo instruments.Conclusions: WaveOne and Reciproc instruments maintained the original curvaturesignificantly better than ProTaper and Mtwo.

APA, Harvard, Vancouver, ISO, and other styles

11

Bartols, Andreas, Bernt-Peter Robra, and Winfried Walther. "The ability of Reciproc instruments to reach full working length without glide path preparation: a clinical retrospective study." PeerJ 5 (July 19, 2017): e3583. http://dx.doi.org/10.7717/peerj.3583.

Full text

Abstract:

Background Reciproc instruments are the only contemporary root canal instruments where glide path preparation is no longer strictly demanded by the manufacturer. As the complete preparation of root canals is associated with success in endodontic treatment we wanted to assess the ability and find predictors for Reciproc instruments to reach full working length (RFWL) in root canals of maxillary molars in primary root canal treatment (1°RCTx) and retreatment (2°RCTx) cases. Methods This retrospective study evaluated 255 endodontic treatment cases of maxillary molars. 180 were 1°RCTx and 75 2°RCTx. All root canals were prepared with Reciproc instruments. The groups were compared and in a binary logistic regression model predictors for RFWL were evaluated. Results A total of 926 root canals were treated with Reciproc without glide path preparation. This was possible in 885 canals (95.6%). In 1°RCTx cases 625 of 649 (96.3%) canals were RFWL and in 2°RCTx cases 260 of 277 (93.9%). In second and third mesiobuccal canals (MB2/3) 90 out of 101 (89.1%) were RFWL with Reciproc in 1°RCTx and in the 2°RCTx treatment group 49 out of 51 cases (96.1%). In mesio-buccal (MB1) canals “2°RCTx” was identified as negative predictor for RFWL (OR 0.24 (CI [0.08–0.77])). In MB2/3 canals full working length was reached less often (OR 0.04 (CI [0.01–0.31])) if the tooth was constricted and more often if MB2/3 and MB1 canals were convergent (OR 4.60 (CI [1.07–19.61])). Discussion Using Reciproc instruments, the vast majority of root canals in primary treatment and retreatment cases can be prepared without glide path preparation.

APA, Harvard, Vancouver, ISO, and other styles

12

Scărlătescu, Sinziana Adina, Paula Perlea, Irina Maria Gheorghiu, and Cătălin Nicolae Rolea. "Comparative evaluation of root canal preparation using Wave One and Reciproc Systems." Romanian Journal of Stomatology 63, no. 4 (December 31, 2017): 174–79. http://dx.doi.org/10.37897/rjs.2017.4.5.

Full text

Abstract:

Aim. The aim of this study was to assess the preparation of root canals using single-file instruments Wave One (Densplay-Sirona) and Reciproc (VDW Gmbh). Materials and methods. Forty lower mesial and distal root canals were divided into 4 groups (n=10) according to shaping technique; mesial roots were prepared using Reciproc 25 and WaveOne Primay and distal root using Reciproc 40 and Wave One Large respectively. Pre- and post-instrumented radiographs were taken to examine and compare the cross-sectional shape of the canals at 3, 6 and 9 mm. Results. Wave One led to bigger diameters especially at 9 mm, the difference being of 0,22 mm versus Reciproc 25 and 0,14 mm versus Reciproc 40. Conclusions. The Wave One system produced a bigger tapered root canal preparation versus the Reciproc system.

APA, Harvard, Vancouver, ISO, and other styles

13

Fontana, Carlos Eduardo, Anna Luise Silva Oliveira, Rina Andréa Pelegrine, Daniel Kherlakian, Ana Cristina Padilha Janini, Daniel Guimarães Pedro Rocha, Alexandre Sigrist De Martin, Sérgio Luiz Pinheiro, and Carlos Eduardo da Silveira Bueno. "Fracture incidence of waveone gold and reciproc blue files when used in up to three clinical cases: a prospective study." Revista Odontológica do Brasil Central 31, no. 90 (February 9, 2023): 274–88. http://dx.doi.org/10.36065/robrac.v31i90.1622.

Full text

Abstract:

Objective: Reuse of endodontic files remains an open issue in clinical practice. This study was designed to evaluate the fracture strength of WaveOne Gold (Dentsply Maillefer, Ballaigues, Switzerland) and Reciproc Blue (VDW, Munich, Germany) files with successive reuse for root canal shaping in up to three molars. Material and Methods: Prospective clinical study carried out by five calibrated endodontists who treated 384 molars (1291 canals) with a curvature <45° over a 12-month period. A total of 128 instruments were used (64 Reciproc Blue and 64 WaveOne Gold). Each instrument was used to treat three posterior teeth. After each use, the instruments were observed under an operating microscope at 8× magnification. Data were tabulated and a chi-square test was applied. Significance was accepted at the 5% level. Results: Two instruments (one from each group) separated, both on the third use and during instrumentation of a mandibular first molar. In other words, instrument separation occurred in 0.52% of teeth and 0.16% of treated root canals. Conclusions: There was a low incidence of instrument fracture when reciprocating files were used for up to three endodontic treatments in molars.

APA, Harvard, Vancouver, ISO, and other styles

14

Almeida, G. C., L. C. Guimarães, P. D. Resende, V. T. L. Buono, I. F. C. Peixoto, and A. C. D. Viana. "Torsional behaviour of Reciproc and Reciproc blue instruments associated with their martensitic transformation temperatures." International Endodontic Journal 52, no. 12 (August 5, 2019): 1768–72. http://dx.doi.org/10.1111/iej.13185.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Plotino, G., N. M. Grande, L. Testarelli, and G. Gambarini. "Cyclic fatigue of Reciproc and WaveOne reciprocating instruments." International Endodontic Journal 45, no. 7 (January 23, 2012): 614–18. http://dx.doi.org/10.1111/j.1365-2591.2012.02015.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Plotino, Gianluca, Alessio Giansiracusa Rubini, Nicola M. Grande, Luca Testarelli, and Gianluca Gambarini. "Cutting Efficiency of Reciproc and WaveOne Reciprocating Instruments." Journal of Endodontics 40, no. 8 (August 2014): 1228–30. http://dx.doi.org/10.1016/j.joen.2014.01.041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Rajda, Marko, Ivana Miletić, Gorana Baršić, Silvana Jukić Krmek, Damir Šnjarić, and Anja Baraba. "Efficacy of Reciprocating Instruments in the Removal of Bioceramic and Epoxy Resin-Based Sealers: Micro-CT Analysis." Materials 14, no. 21 (November 5, 2021): 6670. http://dx.doi.org/10.3390/ma14216670.

Full text

Abstract:

The objective of this study was to evaluate the efficacy of reciprocating instruments in the removal of bioceramic and epoxy resin-based sealers using micro-CT analysis. Root canals of 40 extracted human teeth were instrumented with a size R25 Reciproc instrument. Specimens were randomly divided into two groups (n = 20) according to the root canal filling material. In the first group, root canals were obturated with AH Plus sealer and Reciproc R25 gutta-percha. In the second group, a combination of bioceramic gutta-percha (TotalFill BC) and bioceramic sealer (TotalFill BC) was used. After one week, the retreatment of all specimens was performed using Reciproc instruments. To analyze the differences in the filling remnants, specimens were scanned in a micro-CT device after obturation and after the retreatment procedure. Statistical analysis was performed using the Mann–Whitney U test (p < 0.05). A combination of bioceramic sealer and bioceramic gutta-percha was more effectively removed from canals using a reciprocating instrument, with a filling remnants volume of 4.01 ± 3.13 mm3, in comparison to the combination of epoxy resin-based sealer and gutta-percha (6.96 ± 2.70 mm3) (p < 0.05). A reciprocating instrument was more effective in removing bioceramic sealers than epoxy resin-based sealers, although none of the root canal filling materials were completely removed from the root canals.

APA, Harvard, Vancouver, ISO, and other styles

18

Gergi, Richard M., Nada E. Osta, and Alfred S. Naaman. "Dentinal crack formation during root canal preparations by the twisted file adaptive, Reciproc and WaveOne instruments." European Journal of Dentistry 09, no. 04 (October 2015): 508–12. http://dx.doi.org/10.4103/1305-7456.172634.

Full text

Abstract:

ABSTRACT Objective: This study aimed to compare the frequency of dentinal microcracks after root canal shaping with 2 reciprocating (Reciproc and WaveOne) and 1 combined continuous reciprocating motion twisted files adaptive (TFA) rotary system. Materials and Methods: Ninety molars were chosen and divided into three groups of 30 each. Root canal preparation was achieved by using Reciproc R25, Primary WaveOne and TFA systems. All the roots were horizontally sectioned at 15, 9, and 3 mm from the apex. The slices were then viewed each under a microscope at × 25 magnification to determine the presence of cracks. The absence/presence of cracks was recorded, and the data were analyzed with a Chi-square test. The significance level was set at P < 0.05. Results: Instrumentation with Reciproc produced significantly more complete cracks than WaveOne and TFA (P = 0.032). The TFA system produced significantly less cracks then the Reciproc and WaveOne systems apically (P = 0.004). Conclusions: Within the limits of this study, the TFA system caused less cracks then the full reciprocating system (Reciproc and WaveOne). Single-file reciprocating files produced significantly more incomplete dentinal cracks than full-sequence adaptive rotary motion.

APA, Harvard, Vancouver, ISO, and other styles

19

Silva, Emmanuel João Nogueira Leal, João M. Teixeira, Nancy Kudsi, Luciana M. Sassone, Renato L. Krebs, and Tauby S. Coutinho-Filho. "Influence of Apical Preparation Size and Working Length on Debris Extrusion." Brazilian Dental Journal 27, no. 1 (February 2016): 28–31. http://dx.doi.org/10.1590/0103-6440201600337.

Full text

Abstract:

Abstract The aim of this study was to quantitatively evaluate the amount of apically extruded debris by single-file reciprocating instruments with different working lengths and apical preparation sizes. Eighty human single-rooted mandibular incisors were used and conventional access cavities were prepared. Then, the specimens were divided into four groups (n=20), according to root canal instrumentation: Reciproc size 25, .08 taper and Reciproc size 40, .06 taper instruments were used at the foramen; Reciproc size 25, .08 taper and Reciproc size 40, .06 taper instruments were used 1 mm short of the foramen. Distilled water was used as an irrigant and the apically extruded debris were collected in pre-weighted glass vials and dried afterwards. The mean weight of debris was weighed with a microbalance and statistically analyzed using one-way analysis of variance and the post hoc Tukey multiple comparison test (p<0.05). The results showed that all experimental groups were associated with debris extrusion. No significant difference was found in the amount of apically extruded debris among all experimental groups (p>0.05). The present study demonstrated that the working length and the apical preparation size did not have a significant effect on debris extrusion when performing single-file reciprocating instrumentation.

APA, Harvard, Vancouver, ISO, and other styles

20

Chandra, Padma, Rajesh Prasad, Surendra Kumar Mishra, and Jagdish Chandra. "The Evaluation of apically extruded debris during root canal preparation using Pro-Taper Universal, ProTaper Gold and Reciproc Blue system: An in-vitro comparative Study." UNIVERSITY JOURNAL OF DENTAL SCIENCES 6, no. 2 (August 25, 2020): 11–15. http://dx.doi.org/10.21276/ujds.2020.6.2.6.

Full text

Abstract:

ABSTRACT Aims & Objectives: The purpose of this study was to compare the amount of apically extruded debris with four nickel-titanium instruments i.e ProTaper Universal, ProTaper Gold, and Reciproc Blue system, Hand K file System. Methods: Eighty extracted single-rooted mandibular premolar human teeth were randomly assigned to 4 groups (n = 20). The canals were instrumented using 1 of the following instruments: ProTaper Universal, ProTaper Gold, and Reciproc Blue system, Hand K file System. Apically extruded debris during instrumentation was collected into preweighed Eppendorf tubes. The weight of the extruded debris was calculated by subtracting the weight of the empty tubes from that of the tubes containing the debris. The data were analyzed statistically using the analysis of variance (ANOVA) and Post-hoc bonferroni test at a significance level of P < .05. Results: All the instrumentation systems resulted in production of extruded debris. The amount of extruded debris was significantly more in Hand K file than PTU, PTG and Reciproc Blue (P<0.05). The PTU system was associated with significantly more extruded debris than the PTG(P=0.041), Reciproc Blue systems (P=`0.011), whereas no significant difference was found in the amount of the debris extruded between PTG and Reciproc Blue (P=0.271). The amount of extruded debris was least in Reciproc Blue in comparison to all used system. Conclusions: Within the limitations of this in vitro study, the amount of apically extruded debris registered for the different files tested was highest for hand file, Protaper Universal, followed by the ProTaper Gold and least in Reciproc Blue.

APA, Harvard, Vancouver, ISO, and other styles

21

Dagna, Alberto, Riccardo Beltrami, Marco Colombo, Marco Chiesa, Stefano Bianchi, and Claudio Poggio. "Cyclic Fatigue Resistance of Three Single-use NiTi Instruments after Immersion in Sodium Hypochlorite." International Journal of Experimental Dental Science 3, no. 2 (2014): 67–72. http://dx.doi.org/10.5005/jp-journals-10029-1074.

Full text

Abstract:

ABSTRACT The aim of this in vitro study was to compare the cyclic fatigue resistance of three single-use nickel-titanium (NiTi) instruments (One Shape, Reciproc and Wave One) after immersion in sodium hypochlorite (NaOCl) solution over several time periods. A total of 135 One Shape, Reciproc R25 and Wave One Primary were tested. The 45 files of the same brand were randomly assigned to three groups (n = 15) and submitted to the following immersion protocol: 1 minute in 5% NaOCl at 37°C, 5 minutes in 5% NaOCl at 37°C, no immersion (as control). Cyclic fatigue test was performed rotating/reciprocating all instruments in a stainless steel curved artificial canal (60° angle of curvature and 5 mm radius). The number of cycles to fracture (NCF) was determined by measuring the time to fracture. The data were compared for differences by using 2-way analysis of variance (p < 0.05). In general, resistance to cyclic fatigue was not significantly affected by immersion in NaOCl. Reciproc R2 showed the highest cyclic fatigue resistance in all groups compared to One Shape and Wave One. Immersion in NaOCl for 1 or 5 minutes did not reduce the cyclic fatigue resistance of NiTi single-use instruments significantly. Reciproc were more resistant, but the new rotary single-use One Shape instruments showed mechanical resistance similar to NiTi files developed for reciprocating motion. How to cite this article Dagna A, Beltrami R, Colombo M, Chiesa M, Bianchi S, Poggio C. Cyclic Fatigue Resistance of Three Single-use NiTi Instruments after Immersion in Sodium Hypochlorite. Int J Experiment Dent Sci 2014;3(2):67-72.

APA, Harvard, Vancouver, ISO, and other styles

22

Angerame, Daniele, Marco Serafin, MatteoDe Biasi, Vittorio Franco, and Luigi Generali. "Influence of different motions on the cyclic fatigue resistance of Reciproc and Reciproc Blue endodontic instruments." Journal of Conservative Dentistry 22, no. 5 (2019): 449. http://dx.doi.org/10.4103/jcd.jcd_430_19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Mamede-Neto, Iussif, Álvaro Henrique Borges, Ana Helena Gonçalves Alencar, Marco Antonio Hungaro Duarte, Manoel Damião Sousa Neto, and Carlos Estrela. "Multidimensional Analysis of Curved Root Canal Preparation Using Continuous or Reciprocating Nickel-titanium Instruments." Open Dentistry Journal 12, no. 1 (January 29, 2018): 32–45. http://dx.doi.org/10.2174/1874210601812010032.

Full text

Abstract:

Objective: To evaluate transportation (T) and centering ability (CA) of root canal preparations using continuous or reciprocating nickel-titanium endodontic files. Materials and Methods: Ninety-six mesiobuccal root canals of mandibular first and second molars were randomly divided into 6 groups (n=16) according to the rotary file used: 1. ProTaper Next; 2. ProTaper Gold; 3. Mtwo; 4. BioRaCe; 5. WaveOne Gold; 6. Reciproc. Root canals were prepared according to manufacturer’s instructions. Cone beam computed tomography scans were obtained before and after root canal preparation. Measurements were made at six different reference points: 2, 3 and 4 mm from the apex and 2, 3 and 4 mm below furcation in different directions. Results: The greatest Mesiodistal (MD) Transportation (T) was found for Reciproc files (p<0.05), and the greatest buccolingual (BL) T, for Reciproc, ProTaper Gold and ProTaper Next files (p<0.05). The greatest Mesiodistal (MD) Centering Ability (CA) was found for BioRaCe files (p<0.05), and the greatest Buccolingual (BL) CA, for BioRaCe and Mtwo files (p<0.05). Conclusion: All systems produced root canal transportation. No file system achieved perfect CA of root preparation. Reciproc files had the greatest MD T and BL T. BioRaCe files had the greatest MD CA, whereas BL CA was similar for BioRaCe and Mtwo files.

APA, Harvard, Vancouver, ISO, and other styles

24

Pedullà, Eugenio, Giusy Rita Maria La Rosa, Simona Boninelli, Oriana Gaetana Rinaldi, Ernestro Rapisarda, and Hyeon-Cheol Kim. "Influence of Different Angles of File Access on Cyclic Fatigue Resistance of Reciproc and Reciproc Blue Instruments." Journal of Endodontics 44, no. 12 (December 2018): 1849–55. http://dx.doi.org/10.1016/j.joen.2018.08.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Inan, Uğur, Cangül Keskin, Özlem Sivas Yilmaz, and Gözde Baş. "Cyclic fatigue of Reciproc Blue and Reciproc instruments exposed to intracanal temperature in simulated severe apical curvature." Clinical Oral Investigations 23, no. 5 (September 22, 2018): 2077–82. http://dx.doi.org/10.1007/s00784-018-2631-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Plotino, G., N. M. Grande, and P. F. Porciani. "Deformation and fracture incidence of Reciproc instruments: a clinical evaluation." International Endodontic Journal 48, no. 2 (June 28, 2014): 199–205. http://dx.doi.org/10.1111/iej.12302.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Rodrigues, C. S., V. T. L. Vieira, H. S. Antunes, G. De-Deus, C. N. Elias, E. J. L. Moreira, and E. J. N. L. Silva. "Mechanical characteristics of counterfeit Reciproc instruments: a call for attention." International Endodontic Journal 51, no. 5 (May 29, 2017): 556–63. http://dx.doi.org/10.1111/iej.12792.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Hanan, Aida Rene Assayag, Daniely Amorin de Meireles, Emílio Carlos Sponchiado Júnior, Simone Hanan, Milton Carlos Kuga, and Idomeo Bonetti Filho. "Surface Characteristics of Reciprocating Instruments Before and After Use - A SEM Analysis." Brazilian Dental Journal 26, no. 2 (April 2015): 121–27. http://dx.doi.org/10.1590/0103-6440201300208.

Full text

Abstract:

The presence of debris, defects and deformations of endodontic reciprocating instruments before and after chemical-mechanical preparation (MCP) was analyzed using scanning electron microscopy (SEM). The following 26 instruments were divided into 2 groups: Waveone (n=13) and Reciproc (n=13) and examined by SEM (150 x magnification) prior to canal preparation at 2 and 4 mm from the tip. The instruments were used in the preparation of mesial root canals of 26 extracted human permanent mandibular molars. The instruments were then washed in ultrasonic bath and subjected to new microscopic analysis of debris and deformation by a score that used the presence or absence of irregular edges, grooves, microcavities and burrs as criteria. After the SEM analysis and with the scores of the examiners, the collected data were subjected to descriptive statistical analysis using the Kruskall-Walis and Mann Whitney test at a 5% significance level. All instruments examined presented debris before and after use. A statistically significant difference was found for defects and deformation between the groups (p<0.05). The presence of defects and deformities was higher in the WaveOne instruments, and Reciproc instruments presented a lower rate.

APA, Harvard, Vancouver, ISO, and other styles

29

Sen, Ozgur Genc, Burcu Bilgin, Sibel Koçak, Baran Can Sağlam, and Mustafa Murat Koçak. "Evaluation of Apically Extruded Debris Using Continuous Rotation, Reciprocation, or Adaptive Motion." Brazilian Dental Journal 29, no. 3 (May 2018): 245–48. http://dx.doi.org/10.1590/0103-6440201801967.

Full text

Abstract:

Abstract The aim of this study was to compare the amount of apically extruded debris during root canal instrumentation using ProTaper Next (PTN), Twisted File (TF) Adaptive, and Reciproc instruments. Forty-five extracted human maxillary canines were selected and randomly assigned into 3 groups. The root canals were prepared using PTN instruments with continuous rotation (n=15), TF Adaptive instruments with adaptive motion (n=15), Reciproc instruments with reciprocating motion (n=15). During the preparations, canals were irrigated using distilled water and material extruded apically was collected in pre-weighed Eppendorf tubes. After a 5-day drying period in an incubator, the tubes were weighed and the dry weight of the extruded debris was calculated. Data distributions were assessed via the Shapiro-Wilk test, and groups were compared via the Kruskal-Wallis test. The greatest amount of debris extruded by TF Adaptive and the least by PTN, but the difference was insignificant between groups (p=0.259). All instrumentation systems were associated with debris extrusion.

APA, Harvard, Vancouver, ISO, and other styles

30

Vieira, Thalita Miranda, Ryhan Menezes Cardoso, Nayane Chagas Carvalho Alves, Silvio Emanuel Acioly Conrado de Menezes, Shirley Machado Batista, Silmara de Andrade Silva, Christianne Velozo, Diana Santana de Albuquerque, and Gabriela Queiroz de Melo Monteiro. "Cyclic Fatigue Resistance of Blue Heat-Treated Instruments at Different Temperatures." International Journal of Biomaterials 2021 (July 30, 2021): 1–5. http://dx.doi.org/10.1155/2021/5584766.

Full text

Abstract:

The main aim is to evaluate the cyclic fatigue resistance of blue heat-treated instruments with different kinematics. Twenty-four endodontic instruments of the same brand were used for each of three experimental groups: VB (Vortex Blue 40/0.04), RB (RECIPROC Blue 40/0.06), and XB (X1 Blue 40/0.06). The instruments were randomly distributed and subjected to temperatures of 20°C and 37°C. The fatigue test was performed using a stainless steel device. Data were analysed using the Shapiro–Wilk test, Student’s t-test, the F test, and Tukey’s and Tamhane tests at significance level P = 0.05 . The instruments’ cyclic fatigue resistance at both temperatures differed significantly for each instrument type ( P < 0.001 ). The RB instruments displayed greater cyclic fatigue resistance at the tested temperatures compared with the VB and XB instruments ( P < 0.001 ). Reciprocating kinematics positively influenced cyclic fatigue resistance. Blue heat-treated instruments showed decreased cyclic fatigue resistance as the temperature increased ( P < 0.001 ).

APA, Harvard, Vancouver, ISO, and other styles

31

Kucukyilmaz, Ebru, Selcuk Savas, Gokhan Saygili, and Banu Uysal. "Evaluation of Apically Extruded Debris and Irrigant Produced by Different Nickel-Titanium Instrument Systems in Primary Teeth." Journal of Contemporary Dental Practice 16, no. 11 (2015): 864–68. http://dx.doi.org/10.5005/jp-journals-10024-1772.

Full text

Abstract:

ABSTRACT Aim The purpose of this study was to determine the amount of extruded debris and irrigant associated with different single-file systems and one multiple-file system. Materials and methods Forty-five newly extracted single rooted primary canine teeth were used in this study. The root canals were instrumented using the reciprocating single-file system, the single-file rotary system and the multiple-file rotary system. A 10–6 precision micro-balance was used to calculate the amount of extruded debris and irrigant. The incubation period was set as 15 days at 37°C to obtain dry debris. The preparation time for instrumentation was also recorded. The data were statistically analyzed by Manova and Bonferroni adjustment. Results Considering the apically extruded debris, while there was statistically significant difference between Reciproc and OneShape groups (p < 0.05), no statistically significant difference was found among the other groups (p > 0.05). In terms of irrigation solution, although significant difference was obtained between the Reciproc and other two groups (p < 0.05), no statistically significant difference was obtained between the two rotary instruments (p > 0.05). Instrumentation was significantly faster using Reciproc than with all other instrument (p < 0.05). Conclusion All systems caused apical debris and irrigant extrusion. Full-sequences rotary instrumentation systems may be preferable for preparation primary teeth. Clinical significance This is the first study carrying out to compare both apical debris and irrigation solution extrusion with reciprocal and rotary single-file systems with other preparation systems in primary teeth. How to cite this article Kucukyilmaz E, Savas S, Saygili G, Uysal B. Evaluation of Apically Extruded Debris and Irrigant Produced by Different Nickel-Titanium Instrument Systems in Primary Teeth. J Contemp Dent Pract 2015;16(11):864-868.

APA, Harvard, Vancouver, ISO, and other styles

32

Shim, Kyu-Sang, Soram Oh, KeeYeon Kum, Yu-Chan Kim, Kwang-Koo Jee, and Seok Woo Chang. "Mechanical and Metallurgical Properties of Various Nickel-Titanium Rotary Instruments." BioMed Research International 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/4528601.

Full text

Abstract:

The aim of this study was to investigate the effect of thermomechanical treatment on mechanical and metallurgical properties of nickel-titanium (NiTi) rotary instruments. Eight kinds of NiTi rotary instruments with sizes of ISO #25 were selected: ProFile, K3, and One Shape for the conventional alloy; ProTaper NEXT, Reciproc, and WaveOne for the M-wire alloy; HyFlex CM for the controlled memory- (CM-) wire; and TF for the R-phase alloy. Torsional fracture and cyclic fatigue fracture tests were performed. Products underwent a differential scanning calorimetry (DSC) analysis. The CM-wire and R-phase groups had the lowest elastic modulus, followed by the M-wire group. The maximum torque of the M-wire instrument was comparable to that of a conventional instrument, while those of the CM-wire and R-phase instruments were lower. The angular displacement at failure (ADF) for the CM-wire and R-phase instruments was higher than that of conventional instruments, and ADF of the M-wire instruments was lower. The cyclic fatigue resistance of the thermomechanically treated NiTi instruments was higher. DSC plots revealed that NiTi instruments made with the conventional alloy were primarily composed of austenite at room temperature; stable martensite and R-phase were found in thermomechanically treated instruments.

APA, Harvard, Vancouver, ISO, and other styles

33

de Souza, Patricia Fonseca, Leonardo Cantanhede Oliveira Goncalves, Andre Augusto Franco Marques, Emilio Carlos Sponchiado Junior, Lucas da Fonseca Roberti Garcia, and Fredson Marcio Acris de Carvalho. "Root canal retreatment using reciprocating and continuous rotary nickel-titanium instruments." European Journal of Dentistry 09, no. 02 (April 2015): 234–39. http://dx.doi.org/10.4103/1305-7456.156834.

Full text

Abstract:

ABSTRACT Objective: The complete filling material removal during endodontic retreatment is a clinical procedure difficult to achieve. The aim of this study was to evaluate the efficacy of reciprocating and continuous rotary nickel-titanium instruments used in root canal retreatment. Materials and Methods: Forty freshly extracted human premolars were cleaned and shaped by the crown-down technique, followed by filling by the lateral compaction technique. The teeth were randomly separated into two groups (n = 20), according to the system used for filling material removal: G1 - Reciproc and G2 - ProTaper Universal Retreatment System. The teeth were photographed under operating microscope at ×8 magnification; and the total area of the root canal and remaining filling material were quantified. Results: No statistically significant difference (P > 0.05) in residual filling material was observed between groups; however, the time required for filling removal was significantly shorter for Reciproc system (P < 0.05). Conclusions: It was observed remaining filling material in all teeth, irrespective of the system used; however, root canal retreatment was faster when reciprocating motion was used.

APA, Harvard, Vancouver, ISO, and other styles

34

Tonetto, Mateus R., EM Maia Filho, RM dos Reis Santos, Darlon M. Lima, SM da Silva Pereira, Janir A. Soares, RR de Jesus Tavarez, Meire C. Ferreira, Ceci N. Carvalho, and C. de Castro Rizzi. "Shaping Ability of ProTaper Next, WaveOne, and Reciproc in Simulated Root Canals." Journal of Contemporary Dental Practice 17, no. 11 (2016): 902–6. http://dx.doi.org/10.5005/jp-journals-10024-1951.

Full text

Abstract:

ABSTRACT Introduction The study aimed to compare the shaping and preservation of the original curvature of simulated curved root canals using the following instruments: Reciproc (Rcp), WaveOne (Wo), and the ProTaper Next system (Ptn). Materials and methods A total of 45 resin blocks with simulated curved root canals were divided into three groups (n = 15), prepared using the Rcp (R25), Wo (25/0.8), and Ptn (X2) instruments. Standardized photographs were taken before and after canal instrumentation. After the superimposition of the images, the amount of resin removed from the curvature's inner and outer walls was measured at six apical levels, at intervals of 1 mm. The canals’ angles of curvature before and after instrumentation were subtracted. Results There were no significant differences between the instruments in terms of the total amount of resin removed of the inner or outer walls of the apical curvature (p > 0.05). The Rcp instruments provided the best resin removed ratios between the walls. The means of the change in angle were as follows: Wo = 2.15°, Ptn = 0.92°, and Rcp = 0.21°. WaveOne caused significantly higher deviations than Rcp. Conclusion All of the instruments demonstrated a tendency to straighten the simulated root canal. Instruments that use rotary movement achieved an effect similar to that of the reciprocating instruments in relation to change in angle. Clinical significance Deviations from the original shape of the root canal could have a negative impact on the quality of a filling and consequently on the success of the endodontic treatment. How to cite this article Maia Filho EM, dos Reis Santos RM, Lima DM, da Silva Pereira SM, Soares JA, de Jesus Tavarez RR, Ferreira MC, Carvalho CN, Bandeca MC, Tonetto MR, Borges AH, de Castro Rizzi C. Shaping Ability of ProTaper Next, WaveOne, and Reciproc in Simulated Root Canals. J Contemp Dent Pract 2016;17(11):902-906.

APA, Harvard, Vancouver, ISO, and other styles

35

Serefoglu, Burcu, Seniha Miçooğulları Kurt, Mehmet Emin Kaval, Pelin Güneri, Gözde Kandemir Demirci, and Mehmet Kemal Çalışkan. "Cyclic Fatigue Resistance of Multiused Reciproc Blue Instruments during Retreatment Procedure." Journal of Endodontics 46, no. 2 (February 2020): 277–82. http://dx.doi.org/10.1016/j.joen.2019.10.024.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Arslan, Hakan, Meltem Alsancak, Ezgi Doğanay, Ertuğrul Karataş, İsmail Davut Çapar, and Huseyin Ertas. "Cyclic fatigue analysis of Reciproc R25® instruments with different kinematics." Australian Endodontic Journal 42, no. 1 (July 7, 2015): 22–24. http://dx.doi.org/10.1111/aej.12115.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Hussien, Salsabeil W., and Hikmet A. Al-Gharrawi,. "Incidence of Dentinal Root Defects Caused by RECIPROC Blue, ProTaper Gold, ProTaper NEXT and RECIPROC Nickel Titanium Rotary Instruments." Journal of Contemporary Dental Practice 20, no. 3 (2019): 291–97. http://dx.doi.org/10.5005/jp-journals-10024-2512.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Pham, Khoa Van. "Cyclic fatigue resistance of four different nickel-titanium instruments in an artificial canal." F1000Research 10 (August 13, 2021): 800. http://dx.doi.org/10.12688/f1000research.55549.1.

Full text

Abstract:

Introduction: The objective of this study was to measure the number of cycles to fracture of four continuous or reciprocating rotary nickel-titanium instruments in different materials. Methods: A total of 40 nickel-titanium instruments were used for the present study. Instruments were divided into four groups (n=10): group 1, Revo-S SU; group 2, ProTaper Next X2; group 3, Reciproc R25; group 4, WaveOne Gold Primary. An artificial stainless-steel was used to test the cyclic fatigue of the instruments. The instruments were introduced into the stainless-steel canal, one at a time, until they reached the other end, then they were rotated inside the canal without in-out motion. The time from the beginning of instrument rotation until the occurrence of breakage was recorded. The number of rotated cycles to fracture of the instrument were calculated based on the revolutions per minute (rpm) of each instrument and the recorded rotated time. The mean number of cycles to fracture and standard deviations were calculated and statistically analysed. Results: The number of cycles to fracture of the Revo-S SU was the lowest, and that of the WaveOne Gold Primary was highest. Scanning electronic microscope images of fracture surfaces revealed the characteristics of fatigue. Conclusions: The number of cycles to fracture of the reciprocating WaveOne Gold Primary system was the highest amongst the tested instruments.

APA, Harvard, Vancouver, ISO, and other styles

39

keskin, cangul, and Evren Sarıyılmaz. "Apically extruded debris and irrigants during root canal filling material removal using Reciproc Blue, WaveOne Gold, R-Endo and ProTaper Next systems." Journal of Dental Research, Dental Clinics, Dental Prospects 12, no. 4 (December 19, 2018): 272–76. http://dx.doi.org/10.15171/joddd.2018.042.

Full text

Abstract:

Background. The present study aimed to compare the amount of apically extruded debris and irrigants produced by various nickel-titanium instruments. Methods. A total of 100 single-rooted mandibular premolar teeth were root canal treated and prepared for agar gel model. The root canal fillings were removed using Reciproc Blue, ProTaper Next, R-Endo, WaveOne Gold systems or hand instrumentation. The mean weights of apically extruded materials were calculated. Data were statistically analyzed using one-way ANOVA and post hoc Bonferroni tests. Results. Hand instrumentation resulted in significantly more debris and irrigants than other systems (P<0.05). The mean amount of apically extruded debris and irrigants produced by Reciproc Blue system was significantly greater than motordriven instruments (P<0.05). No significant difference was detected between ProTaper Next and WaveOne Gold systems (P>0.05), while they both produced significantly less apically extruded material than R-Endo system (P<0.05). Conclusion. All the instruments caused apical extrusion. ProTaper Next and WaveOne Gold systems were associated with significantly less apical extrusion.

APA, Harvard, Vancouver, ISO, and other styles

40

Carvalho, Nancy Kudsi, Gustavo Ribeiro Alvares, Luciana Moura Sassone, Renato Liess Krebs, Tauby Souza Coutinho-Filho, and Emmanuel João Nogueira Leal da Silva. "A comparative evaluation of efficacy of a reciprocating system for gutta-percha removal with or without a solvent." Revistas 74, no. 3 (September 25, 2017): 210. http://dx.doi.org/10.18363/rbo.v74n3.p.210.

Full text

Abstract:

Objective: to evaluate the efficacy of Reciproc System, with or without solvent for endodontic filling removal from oval shaped root canals. The time required for gutta-percha removal and the instrument fracture were also evaluated. Material and Methods: forty straight single-rooted premolars were prepared up to a size 30 and filled with gutta-percha and sealer, then randomly assigned to two retreatment groups (n = 20), treated with Reciproc System with or without chloroform (RS+C and RS). For all roots, procedural errors, time of retreatment and apically extruded material were recorded. After retreatment, roots were split longitudinally and then photographed. All images were evaluated with Image Tool software to calculate the percentage of residual material. Kolmogorov Smirnov and t tests were used to determine significant differences at P < .05. Results: no treatment completely removed the root filling material from the root canals. Analysis of the total area did not reveal statistical differences between the two groups (P>.05). Both groups also showed similar results in all tested thirds, with no statistical differences (P>.05). RS without solvent was faster in filling material removal than RS+C (P<.05). For both groups, none of the instruments showed intracanal fracture or visible signs of plastic deformation. Conclusion: taken together, our results demonstrated that Reciproc System used without solvent required less time to remove the same amount of root filling material than Reciproc System with solvent. However, regardless of solvent use, the same cleaning quality was obtained.

APA, Harvard, Vancouver, ISO, and other styles

41

Altunbas, Demet, Betul Kutuk, and Alper Kustarci. "Shaping ability of reciprocating single-file and full-sequence rotary instrumentation systems in simulated curved canals." European Journal of Dentistry 09, no. 03 (July 2015): 346–51. http://dx.doi.org/10.4103/1305-7456.163221.

Full text

Abstract:

ABSTRACT Objective: The purpose of this study was to evaluate the shaping ability of three nickel-titanium systems in simulated curved canals. Materials and Methods: Sixty simulated canals were prepared to apical size 25 with Reciproc, S5, and twisted file (TF) instruments. Standardized pre and postoperative images were taken using a digital camera, were superimposed and aberrations were recorded. Material removal was measured at five points: The canal orifice, halfway to the orifice, beginning of the curve, the apex of the curve, and end-point. The data were analyzed using Kolmogorov–Smirnov, analysis of variance, and Tukey tests. Results: The mean total width of the prepared canals in the Reciproc group was greater than the TF and S5 groups at halfway to the orifice, the beginning of the curve, the apex of the curve, and the end-point (P < 0.05). Mean absolute transportation was always <0.16 mm; however, significant differences occurred between the three systems at the orifice, halfway to the orifice, and the beginning of the curve (P < 0.05). TF created minimal absolute transportation at halfway to the orifice and the beginning of the curve, and greater absolute transportation at the orifice compared with the Reciproc and S5 instruments. However, the difference between the S5 and TF groups was not statistically significant at halfway to the orifice (P > 0.05). Conclusions: Under the conditions of the study, Reciproc produced widest canal shapes. TF provided more centered apical preparation and maintained the original canal shape well.

APA, Harvard, Vancouver, ISO, and other styles

42

Campos, Ana Elisa Aguiar, Adriana de Jesus Soares, Ana Grasiela da Silva Limoeiro, Fernanda Tessaro Cintra, Marcos Frozoni, and Gabriel Rocha Campos. "Cutting efficiency of ProDesign R, Reciproc Blue and WaveOne Gold reciprocating instruments." Research, Society and Development 10, no. 3 (March 3, 2021): e1710313028. http://dx.doi.org/10.33448/rsd-v10i3.13028.

Full text

Abstract:

This study aimed to evaluate, in vitro, the cutting efficiency and time spent for instrumentation of three different heat-treated reciprocating systems in simulated straight canals. Forty-five acrylic blocks with a straight simulated root canal with 21 millimeters in length were initially weighed (P1). After weighing the blocks were divided into three groups (n = 15) and each group prepared with the following systems: ProDesign R 25.06 (Bassi/Easy, Belo Horizonte, Brazil), Reciproc Blue25.08 (VDW, Munich, Germany) and Wave one Gold (Dentsply Sirona, Ballaigues, Switzerland). The time spent for the total preparation of each block was recorded. After instrumentation, they were subjected to final weighing (P2). The difference between P1 and P2 determined the amount of material removed (cutting efficiency) by each mechanized system. The statistical analysis was performed by the ANOVA test of each of the variables, for multiple comparisons of means the turkey test was used. As for preparation time, it can be seen that ProDesign R showed a longer preparation time (P <0.5) compared to Reciproc Blue and Wave one Gold. Regarding cutting efficiency, there was no statistical difference between the groups (P> 0.5). In straight simulated canals, the type of reciprocating instrument influences the time for instrumentation; however, it shows similar cutting efficiency.

APA, Harvard, Vancouver, ISO, and other styles

43

Maniglia-Ferreira, Claudio, Fabio de Almeida Gomes, Tatyana Ximenes, Murilo Alves Teixeira Neto, Thiane Elys Arruda, Giovani Gonçalves Ribamar, and Luis Flávio Gaspar Herculano. "Influence of reuse and cervical preflaring on the fracture strength of reciprocating instruments." European Journal of Dentistry 11, no. 01 (January 2017): 041–47. http://dx.doi.org/10.4103/ejd.ejd_272_16.

Full text

Abstract:

ABSTRACT Objective: This study sought to assess the influence of cervical preflaring and reuse after resterilization, on fracture strength and plastic deformation and/or surface cracking in reciprocating nickel–titanium [NiTi] endodontic instruments after root canal instrumentation of extracted human teeth. Materials and Methods: Forty engine-driven reciprocating NiTi instruments (20 Reciproc® [RC], VDW; 20 WaveOne® [WO], Dentsply) were used in root canal instrumentation of extracted human molars. A total of 485 human upper molars with similar anatomical features were selected and randomly distributed across four groups according to the instrumentation procedures performed (G1 and G3: RC; G2 and G4: WO). Reciprocating instruments were used as per manufacturer instructions. In groups G3 and G4, cervical preflaring was performed prior to instrumentation. After each use of each instrument, sterilization was repeated and scanning electron microscope (SEM) images were obtained to check for plastic deformations and/or cracks on instrument surfaces. Each instrument was used repeatedly until fracture occurred. Results: Regardless of flaring, RC files exhibited greater fracture strength than WO instruments (P<0.01) with and without preflaring. Cervical preflaring significantly reduced the risk of instrument fracture (P<0.01). No plastic deformations were observed before fracturing. However, cracks were found on WO instruments shortly after their first use. RC and WO instruments resisted fracturing after autoclave sterilization. Conclusions: Cervical preflaring allowed a significant increase in the number of times RC and WO files could be reused safely.

APA, Harvard, Vancouver, ISO, and other styles

44

Boetto, Ana, Georgette Arce-Brisson, Osvaldo Zmener, Cornelis Pameijer, Roberto Della-Porta, and Mariana Picca. "Ability of two reciprocating Nickel-Titanium instruments for gutta- percha/sealer removal in simulated curved root canals." Acta Odontológica Latinoamericana 35, no. 1 (April 29, 2022): 39–44. http://dx.doi.org/10.54589/aol.35/1/39.

Full text

Abstract:

The aim of this study was to compare the capacity of two reciprocating NiTi instruments in removing gutta-percha/sealer material from simulated curved root canals (SCRC). The time required for filling material removal was also recorded. Twenty SCRCs were divided into two groups of 10 (n=10) samples each. In Group 1, the SCRC were prepared to a R25 Reciproc Blue instrument (RCPB; VDW, Munich, Germany). In Group 2 the SCRC were prepared to a Primary WaveOne Gold instrument (PWOG; Dentsply, Ballaigues, Switzerland). In both groups, the canals were filled with matched-taper single gutta-percha cones and AH Plus sealer. Filling materials were removed with R25 RCPB (Group 1) and PWOG (Group 2). The amount of remaining gutta-percha/sealer was calculated at three predetermined levels of evaluation located at 2, 6 and 10 mm from the WL and expressed in percentages. Canals re-treated with RCPB contained significantly less remaining gutta-percha/sealer compared to canals prepared with PWOG (P=0.02). The RCPB instruments required significantly less time to complete the retreatment procedures (P<0.01). No unwinding or instrument separation was noted. RCPB instruments removed significantly more gutta-percha/sealer from simulated curved root canals than PWOG. However, neither of the tested instruments completely removed all filling materials.

APA, Harvard, Vancouver, ISO, and other styles

45

Vieira, Thalita M., Nayane CC Alves, Andressa C. de Almeida, Christianne TV Telles, Diana S. Albuquerque, and Silmara de Andrade Silva. "Influence of Temperature on the Cyclic Fatigue Resistance of Reciproc Blue Instruments." Journal of Contemporary Dental Practice 21, no. 3 (2020): 277–79. http://dx.doi.org/10.5005/jp-journals-10024-2781.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Yılmaz, Koray, and Taha Özyürek. "Cyclic fatigue life of Tango-Endo, WaveOne GOLD, and Reciproc NiTi instruments." Restorative Dentistry & Endodontics 42, no. 2 (2017): 134. http://dx.doi.org/10.5395/rde.2017.42.2.134.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Özyürek, Taha. "Cyclic Fatigue Resistance of Reciproc, WaveOne, and WaveOne Gold Nickel-Titanium Instruments." Journal of Endodontics 42, no. 10 (October 2016): 1536–39. http://dx.doi.org/10.1016/j.joen.2016.06.019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

SEZGİN, Güzide Pelin, and Mustafa GÜNDOĞAR. "Comparison of Torsional Resistance of Reciproc®, WaveOne™ and One Shape® Nickel-Titanium Instruments." Turkiye Klinikleri Journal of Dental Sciences 26, no. 1 (2020): 26–30. http://dx.doi.org/10.5336/dentalsci.2019-66077.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Ustun, Yakup, Tugrul Aslan, Burak Sagsen, and Bertan Kesim. "The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation." European Journal of Dentistry 09, no. 01 (January 2015): 041–46. http://dx.doi.org/10.4103/1305-7456.149638.

Full text

Abstract:

ABSTRACT Objective: The aim of the present study was to investigate the incidence of dentinal microcracks caused by different preparation techniques. Materials and Methods: 120 extracted human mandibular incisor teeth were divided into five experimental groups and one control group (n = 20): Group 1: Hand preparation with balanced force technique up to #25 K-file. Group 2: Preparation with only ProTaper F2 instrument in a reciprocating movement. Group 3: Preparation with Reciproc R25 instrument in a reciprocating movement. Group 4: Preparation with ProTaper instruments up to F2 instrument. Group 5: Preparation with ProTaper Next instruments up to X2 instrument. No procedure was applied to control group. The roots were sectioned horizontally at 3, 6 and 9 mm from the apex and examined. Absence or presence of dentinal microcracks was noted. Results: The Chi-square test was performed to compare the appearance of cracked roots between all groups. There were no significant differences among the groups (P > 0.05). Conclusions: In conclusion, except the hand file and control group, all experimental groups showed microcrack formations.

APA, Harvard, Vancouver, ISO, and other styles

50

Zivkovic, Slavoljub, Jelena Neskovic, Marijana Popovic-Bajic, and Milica Medojevic-Jovanovic. "The efficiency of canal cleaning with reciprocating movements instruments - SEM study." Srpski arhiv za celokupno lekarstvo 148, no. 3-4 (2020): 148–52. http://dx.doi.org/10.2298/sarh190412002z.

Full text

Abstract:

Introduction/Objective. The application of nickel?titanium (NiTi) instruments in cleaning and shaping of the root canal system is a standard and a precondition for the success of endodontic treatment. The objective of this study was to use scanning electron microscopy (SEM) analysis in order to examine the efficiency of cleaning the apical third of the root canal system using two different NiTi systems with reciprocating movements. Methods. The study included 20 single-rooted teeth (premolars) divided into two groups. In group 1, the canal preparation was realized with a single file UNICONE with reciprocating movements (MEDIN, Inc., Nove M?sto na Morav?, Czech Republic), and in group 2, with ? RECIPROC BLUE instrument with reciprocating movements (VDW GmbH, Munich, Germany). The same quantities of 2% NaOCl solution and 17% EDTA solution were used as irrigation solutions. The samples prepared for SEM analysis of the smear layer in the apical third were evaluated on a scale of 1?5 and at a magnification of 1,000?. Results. SEM analysis pointed to mostly clean canal walls in the apical segment in both tested groups. Slightly cleaner walls were observed after the application of the UNICONE file (78%) compared to the samples of the second group, where the instrumentation was realized by the RECIPROC BLUE file (76%), but without statistically significant differences. Conclusion. Single-file reciprocating systems do not remove the smear layer completely, but provide efficient cleaning of the apical region of the canal.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Reciproc instruments'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles