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Article: The Efficacy of Different Laser Applications on Dentin Sealing in Preventing Discoloration Induced by Mineral Trioxide Aggregate.

Sesen Uslu, Yesim / Arıcan Alpay, Burçin / Sesen, Pinar / Özyürek, Taha

2024 Volume 17, Issue 5

Abstract: The aim of this in vitro study was to evaluate the effect of the pre-application of a dentin-bonding agent and the application of different lasers on the prevention of tooth discoloration caused by mineral trioxide aggregate (MTA) in the presence of ... ...

Abstract	The aim of this in vitro study was to evaluate the effect of the pre-application of a dentin-bonding agent and the application of different lasers on the prevention of tooth discoloration caused by mineral trioxide aggregate (MTA) in the presence of blood. Sixty extracted human anterior teeth were selected, with root lengths standardized to 10 mm and root canals shaped using Gates-Glidden drills #3 to #5. The samples were divided into six groups (
Language	English
Publishing date	2024-02-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma17051015
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Article ; Online: Cyclic Fatigue Resistance of Reciproc, WaveOne, and WaveOne Gold Nickel-Titanium Instruments.

Özyürek, Taha

Journal of endodontics

2016 Volume 42, Issue 10, Page(s) 1536–1539

Abstract: Introduction: The purpose of this study was to compare the cyclic fatigue resistance of Reciproc R25 (VDW, Munich, Germany), WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland), and WaveOne Gold Primary files (Dentsply Maillefer).: Methods: ...

Abstract	Introduction: The purpose of this study was to compare the cyclic fatigue resistance of Reciproc R25 (VDW, Munich, Germany), WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland), and WaveOne Gold Primary files (Dentsply Maillefer). Methods: Twenty Reciproc R25, 20 WaveOne Primary, and 20 WaveOne Gold Primary instruments were included in this study. The cyclic fatigue tests were performed using a cyclic fatigue testing device, which has an artificial stainless steel canal with a 60° angle of curvature and a 5-mm radius of curvature. The files were randomly divided into 3 groups (group 1: Reciproc R25; group 2: WaveOne Primary; and group 3: WaveOne Gold Primary). All the instruments were rotated until fracture occurred, and the time to fracture was recorded in seconds using a digital chronometer. The number of cycles to failure (NCF) was calculated. The data were analyzed statistically (P < .05). Results: There was a significant difference among the groups (P < .05). The WaveOne Gold Primary showed the greatest mean of NCF (1628 ± 107), and the WaveOne Primary showed the lowest mean of NCF (1153 ± 119.2). Conclusions: Within the limitations of this in vitro study, the cyclic fatigue resistance of the WaveOne Gold Primary single-file system was higher than the WaveOne Primary and Reciproc R25 single-file instruments.
MeSH term(s)	Dental Alloys ; Dental Instruments ; Dental Stress Analysis ; Equipment Design ; Equipment Failure ; Gold ; Nickel ; Root Canal Preparation/instrumentation ; Titanium
Chemical Substances	Dental Alloys ; titanium nickelide (12035-60-8) ; Gold (7440-57-5) ; Nickel (7OV03QG267) ; Titanium (D1JT611TNE)
Language	English
Publishing date	2016-10
Publishing country	United States
Document type	Journal Article
ZDB-ID	752412-2
ISSN	1878-3554 ; 0099-2399
ISSN (online)	1878-3554
ISSN	0099-2399
DOI	10.1016/j.joen.2016.06.019
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Article ; Online: Postoperative pain after SWEEPS, PIPS, sonic and ultrasonic-assisted irrigation activation techniques: a randomized clinical trial.

Erkan, Erhan / Gündoğar, Mustafa / Uslu, Gülşah / Özyürek, Taha

Odontology

2022 Volume 110, Issue 4, Page(s) 786–794

Abstract: To investigate the efficacy of a new laser irrigation activation system [shock wave-enhanced emission photo-acoustic streaming (SWEEPS)] in terms of postoperative pain after primary root canal treatment compared with other techniques, namely photon- ... ...

Abstract	To investigate the efficacy of a new laser irrigation activation system [shock wave-enhanced emission photo-acoustic streaming (SWEEPS)] in terms of postoperative pain after primary root canal treatment compared with other techniques, namely photon-induced photo-acoustic streaming (PIPS), sonic system with EDDY, passive ultrasonic system (PUI), and manual dynamic activation (MDA). Two hundred patients with symptomatic irreversible pulpitis in mandibular premolar teeth were enrolled and randomly allocated to five different irrigation activation groups (n = 40) after chemo-mechanical root canal preparation. For irrigation activation, the SWEEPS and PIPS tips were attached to the Er-YAG laser system in the respective groups, while the Irrisafe tip was used in the PUI group and the EDDY tip in the sonic group. In the MDA group, irrigation was agitated with the master gutta-percha cone. At postoperative hours 8, 24, and 48 and on day 7, pain intensity was evaluated using the 10-mm Visual Analog Scale (VAS) and analgesic intake was recorded. The Kruskal-Wallis test was used to analyze the VAS scores, and pain prevalence and analgesic intake were examined with the Pearson's chi-square test at the 5% significance level. The PIPS and SWEEPS groups had the lowest level and prevalence of pain when compared to the remaining groups (P < 0.001). The PUI, sonic and MDA groups did not differ in terms of pain scores at hours 8 and 48 (P > 0.05). On day 7, the highest score and pain prevalence were recorded in the MDA group (P < 0.001). There was no difference between the groups in terms of analgesic intake (P > 0.05). Laser-activated irrigation systems provided lower postoperative pain scores and levels compared to the other activation systems. The MDA group had the highest pain scores and incidence at the end of the seventh day.
MeSH term(s)	Dental Pulp Cavity ; Humans ; Pain, Postoperative/prevention & control ; Root Canal Irrigants/pharmacology ; Root Canal Irrigants/therapeutic use ; Root Canal Preparation/methods ; Therapeutic Irrigation/methods ; Ultrasonics
Chemical Substances	Root Canal Irrigants
Language	English
Publishing date	2022-03-10
Publishing country	Japan
Document type	Journal Article ; Randomized Controlled Trial
ZDB-ID	2092085-4
ISSN	1618-1255 ; 1618-1247
ISSN (online)	1618-1255
ISSN	1618-1247
DOI	10.1007/s10266-022-00700-0
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Article: Mechanical Properties of the New Generation RACE EVO and R-Motion Nickel-Titanium Instruments.

Basturk, Fatima Betul / Özyürek, Taha / Uslu, Gülşah / Gündoğar, Mustafa

Materials (Basel, Switzerland)

2022 Volume 15, Issue 9

Abstract: This study aimed to evaluate and compare the dynamic cyclic fatigue, torsional and bending resistance of two novel RACE EVO (FKG Dentaire SA, La Chaux de Fonds, Switzerland) and R-Motion (FKG) nickel−titanium instruments with traditional RaCe (FKG) ... ...

Abstract	This study aimed to evaluate and compare the dynamic cyclic fatigue, torsional and bending resistance of two novel RACE EVO (FKG Dentaire SA, La Chaux de Fonds, Switzerland) and R-Motion (FKG) nickel−titanium instruments with traditional RaCe (FKG) instruments. RACE EVO, R-Motion and RaCe instruments with a size of 25 and taper of 0.06 were used. A dynamic cyclic fatigue test was used to assess the time to fracture. The fractured surfaces were further analyzed using scanning electron microscopy at ×350 and ×3000 magnifications. A torsional resistance test was performed to measure the maximum torsional strength and angle of rotation. Phase transformations with temperature were evaluated using differential scanning calorimetry. The results were statistically analyzed with a Kruskal−Wallis test at a 5% significance level. R-Motion had the highest time to fracture and the lowest torsional and bending resistance, whereas RaCe had the lowest time to fracture and the highest torsional and bending resistance (p < 0.05). In relation to the angle of rotation, RACE EVO instruments had the highest deformation capacity followed by R-Motion and RaCe instruments (p < 0.05). The greater cyclic fatigue resistance and lower torsional and bending resistance results indicate that the novel R-Motion and RACE EVO instruments are less rigid and more flexible than RaCe instruments.
Language	English
Publishing date	2022-05-06
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma15093330
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Article ; Online: Investigation of the effectiveness of sonic, ultrasonic and new laser-assisted irrigation activation methods on smear removal and tubular penetration.

Uslu, Gülşah / Gündoğar, Mustafa / Üngör, Mete / Özyürek, Taha / Erkan, Erhan / Keskin, Neslihan Büşra

Lasers in medical science

2023 Volume 38, Issue 1, Page(s) 30

Abstract: The aim of this study was to examine the effectiveness of different irrigation activation methods on smear layer removal and tubular penetration. One hundred-five distal roots of mandibular molar teeth in total; 50 for smear removal efficiency (n = 10) ... ...

Abstract	The aim of this study was to examine the effectiveness of different irrigation activation methods on smear layer removal and tubular penetration. One hundred-five distal roots of mandibular molar teeth in total; 50 for smear removal efficiency (n = 10) analysis using scanning electron microscopy (SEM), and 55 roots were used to examine tubular penetration using confocal laser scanning microscope (CLSM). Five different irrigation activation methods were used in this study; conventional needle irrigation (CNI), sonic irrigation device of EDDY, passive ultrasonic irrigation (PUI), PIPS and SWEEPS techniques, which are two different laser irrigation activation methods. The obtained data were statistically analyzed and the significance level was determined as p < 0.05. At the apical level, the cleanest canal walls were observed when laser methods PIPS and SWEEPS were used, while in the middle third, there was no difference in smear removal efficiencies between all groups except for the CNI (p > 0.05). Penetration depths and percentages increased from apically to coronally in all groups. The PUI and EDDY generally showed similar penetration depths and percentages to the CNI, except at the coronal root level (p > 0.05). In all groups, when PIPS was used, it showed greater penetration depth and percentage (p < 0.05). PIPS and SWEEPS techniques showed lowest and similar smear scores compared to PUI and EDDY in the apical area where access and effectiveness of the irrigation solution are difficult.
MeSH term(s)	Humans ; Root Canal Preparation/methods ; Ultrasonics ; Root Canal Irrigants ; Therapeutic Irrigation/methods ; Smear Layer ; Lasers ; Dental Pulp Cavity
Chemical Substances	Root Canal Irrigants
Language	English
Publishing date	2023-01-03
Publishing country	England
Document type	Journal Article
ZDB-ID	632808-8
ISSN	1435-604X ; 0268-8921
ISSN (online)	1435-604X
ISSN	0268-8921
DOI	10.1007/s10103-022-03697-8
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Article ; Online: Surface deformation of several nickel-titanium rotary instruments after removal of the root canal filling materials: a scanning electron microscope evaluation.

Özyürek, Taha / Demiryürek, Ebru Özsezer

Odontology

2019 Volume 108, Issue 2, Page(s) 213–221

Abstract: The aim of the present study was to investigate and compare the surface deformations of different NiTi rotary files after retreatment under scanning electron microscope (SEM). A total of 240 upper central incisor teeth were obturated with vertical ... ...

Abstract	The aim of the present study was to investigate and compare the surface deformations of different NiTi rotary files after retreatment under scanning electron microscope (SEM). A total of 240 upper central incisor teeth were obturated with vertical compaction technique and divided into 6 groups. Root canals were retreated by ProTaper Next (PTN), Twisted File Adaptive (TFA), Reciproc (RPC), ProTaper Universal Retreatment (PTR), R-Endo and Mtwo-R NiTi rotary systems. The files investigated under SEM at different magnifications and photomicrographs were captured. The photomicrographs were classified and scored. Kruskal-Wallis and Dunn tests were performed for statistical analyze at 5% significance level. PTR and RPC groups were free of defects like file separation, curving and unwinding but PTN and TFA groups showed 50% file separation. According to the photomicrographs that were captured at high magnification; there were no statistically difference between groups at the coronal thirds of the files (P > 0.05), at the middle third PTN and TFA groups showed statistically more deformation than the other groups (P < 0.05). At the apical third Reciproc was statistically showed less deformation than the other all groups (P < 0.05). Within the limitation of this in vitro study, all NiTi files showed surface deformation in SEM observation after retreatment procedures. There was less deformation in PTR and RPC groups according to other.
MeSH term(s)	Dental Pulp Cavity ; Equipment Design ; Gutta-Percha ; Microscopy, Electron, Scanning ; Nickel ; Root Canal Filling Materials ; Root Canal Preparation ; Titanium
Chemical Substances	Root Canal Filling Materials ; Nickel (7OV03QG267) ; Gutta-Percha (9000-32-2) ; Titanium (D1JT611TNE)
Language	English
Publishing date	2019-09-17
Publishing country	Japan
Document type	Journal Article
ZDB-ID	2092085-4
ISSN	1618-1255 ; 1618-1247
ISSN (online)	1618-1255
ISSN	1618-1247
DOI	10.1007/s10266-019-00454-2
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Article ; Online: Efficacy of different irrigant activation devices in removing dentin debris from an artificial isthmus connecting curved canals.

Plotino, Gianluca / Özyürek, Taha / Gündoğar, Mustafa / Uslu, Gülşah / Pedullà, Eugenio / Careddu, Roberto / Franco, Vittorio

Australian endodontic journal : the journal of the Australian Society of Endodontology Inc

2023 Volume 49 Suppl 1, Page(s) 353–358

Abstract: The aim of this study was to evaluate the debridement efficacy of sonic irrigation (EDDY; VDW, Munich, Germany and EndoActivator; Dentsply-Sirona, Ballaigues, Switzerland) and ultrasonically activated irrigation (Irrısafe; Satelec Acteon, Merignac, ... ...

Abstract	The aim of this study was to evaluate the debridement efficacy of sonic irrigation (EDDY; VDW, Munich, Germany and EndoActivator; Dentsply-Sirona, Ballaigues, Switzerland) and ultrasonically activated irrigation (Irrısafe; Satelec Acteon, Merignac, France) in a simulated canal isthmus connecting curved canals. Transparent resin blocks were produced containing two curved canals connected with an isthmus. The isthmus was then filled with dentin debris. Three irrigant activation cycles were performed and the amount of remaining debris was compared analysing pictures taken after each activation cycle. Data were statistically analysed using one-way ANOVA and post hoc Tukey tests at a significance level of p < 0.05. EDDY showed greater efficiency in removing dentin debris from the simulated isthmus than the other techniques tested. An increase in the activation time enhanced the efficiency of both EDDY and ultrasonically activated irrigation in debris removal.
MeSH term(s)	Dental Pulp Cavity ; Root Canal Preparation/methods ; Root Canal Irrigants/therapeutic use ; Molar ; Therapeutic Irrigation/methods ; Dentin
Chemical Substances	Root Canal Irrigants
Language	English
Publishing date	2023-03-24
Publishing country	Australia
Document type	Journal Article
ZDB-ID	2146484-4
ISSN	1747-4477 ; 1329-1947
ISSN (online)	1747-4477
ISSN	1329-1947
DOI	10.1111/aej.12748
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Article ; Online: Effects of etidronate, NaOCl, EDTA irrigation solutions and their combinations on cyclic fatigue resistance of nickel-titanium single-file rotary and reciprocating instruments at body temperature.

Erik, Cevat Emre / Özyürek, Taha

Odontology

2018 Volume 107, Issue 2, Page(s) 190–195

Abstract: The aim of the present study was to compare the effect of etidronic acid (HEBP), NaOCl, and EDTA solutions and their combinations on cyclic fatigue resistance of NiTi RPC Blue (RPC Blue), HyFlex EDM (HEDM), and WaveOne Gold (WOG) instruments having ... ...

Abstract	The aim of the present study was to compare the effect of etidronic acid (HEBP), NaOCl, and EDTA solutions and their combinations on cyclic fatigue resistance of NiTi RPC Blue (RPC Blue), HyFlex EDM (HEDM), and WaveOne Gold (WOG) instruments having different metallurgic characteristics at the body temperature (37 °C). 100 WOG, 100 RPC Blue, and 100 HEDM NiTi files were randomly divided into 5 groups and immersed in the following solutions: group 1, distilled water; group 2, 6% NaOCl; group 3, 17% EDTA; group 4, 18% HEBP; group 5, 6% NaOCl and 18% HEBP. Then the instruments were rotated in an artificial canal until fracture occurred and the number of cycles to fracture was calculated. A univariate analysis of variance and post hoc Tukey tests were then performed for comparisons using SPSS 21.0 software with the significance level set at P < .05. In all the conditions, there was no difference between the cyclic fatigue resistance of WOG and RPC Blue files (P > .05). In the intragroup comparison, WOG, RPC Blue, and HEDM files showed significantly low cyclic fatigue resistance in group 5 compared to other groups (P < .05). Among the groups, there was no statistically significant difference in the fracture lengths (P > .05). EDTA, NaOCl and HEBP solutions did not affect the cyclic fatigue resistance of the tested files when used without combination. However, the combination of NaOCl and HEBP solutions significantly reduced the cyclic fatigue resistance of the tested files.
MeSH term(s)	Body Temperature ; Dental Instruments ; Edetic Acid ; Equipment Failure ; Etidronic Acid ; Nickel ; Root Canal Preparation ; Titanium
Chemical Substances	Nickel (7OV03QG267) ; Edetic Acid (9G34HU7RV0) ; Titanium (D1JT611TNE) ; Etidronic Acid (M2F465ROXU)
Language	English
Publishing date	2018-09-12
Publishing country	Japan
Document type	Journal Article
ZDB-ID	2092085-4
ISSN	1618-1255 ; 1618-1247
ISSN (online)	1618-1255
ISSN	1618-1247
DOI	10.1007/s10266-018-0388-8
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Article: Comparison of the cyclic fatigue resistance of VDW.ROTATE, TruNatomy, 2Shape, and HyFlex CM nickel-titanium rotary files at body temperature.

Gündoğar, Mustafa / Uslu, Gülşah / Özyürek, Taha / Plotino, Gianluca

Restorative dentistry & endodontics

2020 Volume 45, Issue 3, Page(s) e37

Abstract: Objectives: This study aims to compare the cyclic fatigue resistance of VDW.ROTATE, TruNatomy, 2Shape, and HyFlex CM nickel-titanium (NiTi) rotary files at body temperature.: Materials and methods: In total, 80 VDW.ROTATE (25/0.04), TruNatomy (26/0 ... ...

Abstract	Objectives: This study aims to compare the cyclic fatigue resistance of VDW.ROTATE, TruNatomy, 2Shape, and HyFlex CM nickel-titanium (NiTi) rotary files at body temperature. Materials and methods: In total, 80 VDW.ROTATE (25/0.04), TruNatomy (26/0.04), 2Shape (25/0.04), and HyFlex CM (25/0.04) NiTi rotary files ( Results: There were significant differences in the cyclic fatigue resistance among the groups ( Conclusions: The VDW.ROTATE files had the highest cyclic fatigue resistance, and the TruNatomy and 2Shape files had the lowest cyclic fatigue resistance in artificial canals at body temperature.
Language	English
Publishing date	2020-06-22
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2715357-5
ISSN	2234-7666 ; 2234-7658
ISSN (online)	2234-7666
ISSN	2234-7658
DOI	10.5395/rde.2020.45.e37
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Article: Cyclic fatigue resistance of reduced-taper nickel-titanium (NiTi) instruments in doubled-curved (S-shaped) canals at body temperature.

Uslu, Gülşah / Gundogar, Mustafa / Özyurek, Taha / Plotino, Gianluca

Journal of dental research, dental clinics, dental prospects

2020 Volume 14, Issue 2, Page(s) 111–115

Abstract: Background. ...

Abstract	Background.
Language	English
Publishing date	2020-06-17
Publishing country	Iran
Document type	Journal Article
ZDB-ID	2514725-0
ISSN	2008-2118 ; 2008-210X
ISSN (online)	2008-2118
ISSN	2008-210X
DOI	10.34172/joddd.2020.024
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