European Endodontic Journal

This study aims to help clinicians select the most suitable NiTi rotary system for treating S-shaped root canals in their specific context and setting.• Using Procodile/Hyflex CM as a hybrid system showed a clear advantage over other rotary systems and could improve the quality of mechanical preparation and avoid aberrations in S-shaped root canals.• Clinicians can still use a single file system (Hyflex CM or TruNatomy) since it shows satisfactory results in all parameters compared to a hybrid system.• No iatrogenic errors (ledge, apical zip, elbow, or broken instrument) were observed during root canal preparation in all rotary systems used in this study. HIGHLIGHTSObjective: This study aimed to examine the shaping ability of six rotary and reciprocating file systems, as well as hybrid techniques in simulated S-shaped root canals. Methods:A hundred and twenty S-shaped radiopaque thermosetting epoxy resin blocks were grouped according to the system used for biomechanical preparation.Six groups of 15 canals each were prepared using TruNatomy, Procodile, VDW Rotate, Hyflex CM, OneCurve, and WaveOne Gold, respectively.Two additional hybrid (Procodile/Hyflex CM and Procodile/TruNatomy) groups (n=15 each) were added after evaluating the results of individual systems.All canals were enlarged to 0.25 mm apically.Canal transportation, centering ability, diameter increase, and iatrogenic errors were assessed by superimposed pre-operative and post-operative images.AutoCAD was used for data analysis.All groups were statistically compared with analysis of variance and Tukey honest significant difference test (p<0.05).Results: Hyflex CM resulted in the most conservative diameter increase in all thirds (coronal, middle, and apical; p<0.001).Procodile showed the best (p<0.001)centering ability in the coronal and middle thirds, while TruNatomy resulted in the least canal transportation and most centering preparation in the apical third (p<0.001).Hybridisation of Procodile and Hyflex CM produced the least canal transportation and best centering ability in the middle third (p<0.001).No instrument breakage occurred, and no ledge, elbow, or apical zip formation was observed during canal preparation. Conclusion:Hybridisation of Procodile and Hyflex CM showed remarkable results in preserving the canal diameter in all thirds and resulted in the least canal transportation and best centering ability in the middle third of the canal.However, when treatment cost and duration limit the clinical applicability of the hybrid technique, clinicians can use a single file system (Hyflex CM or TruNatomy) since it shows satisfactory results in all parameters when compared with a hybrid system.

Okba Mahmoud

Sara Alhimairi

Diana Sultan

Ayah Ali

Shaping Ability of Different Rotary and Reciprocating File Systems in Simulated S-Shaped Root Canals

不同旋转和往复运动锉系统在模拟S形根管中的成形能力

Endoplasmic reticulum (ER) stress plays important roles not only in stress avoidance, but also in cell differentiation and maturation, cell proliferation, and promotion of bone formation. This study aimed to investigate the involvement of ER stress in the onset of pulpitis.

Tomoya Naruse

Katsuhiro Takeda

Kazuma Yoshida

Shinya Sasaki

Tomoki Kumagai

Yohei Takahashi

Reina Kawai

Jun Nakanishi

Hideki Shiba

Possible Involvement of X-Box Binding Protein-1 in the Onset of Pulpitis

X-盒结合蛋白-1可能参与牙髓炎的发生

To evaluate the effect of a newly developed MTA-based material and two antibacterial-enhanced MTAs as pulp capping materials in immature permanent dental elements underwent full pulpotomy.

Harsh Baldawa

Vignesh Ravindran

Ganesh Jeevanandan

Abirami Arthanari

Kavalipurapu Venkata Teja

Gianrico Spagnuolo

Carlo Rengo

Flavia Iaculli

Mariangela Cernera

Histopathological Assessment of Tricalcium Aluminate-free Mineral Trioxide Aggregate and Two Antibacterial Enhanced Mineral Trioxide Aggregates As Pulpotomy Agents in Rat Model

无铝酸三钙矿物三氧化物凝聚体及两种抗菌增强型矿物三氧化物凝聚体作为大鼠模型牙髓切断术材料的组织病理学评估

To evaluate the outcome of teeth filled with a single cone technique and a premixed bioceramic sealer at 3 years of follow-up.

Andrea Spinelli

Fausto Zamparini

Jacopo Lenzi

Maria Giovanna Gandolfi

Carlo Prati

Three-year Clinical Outcome of Root Canal Treatment Using a Single-cone Technique and Ceraseal Premixed Bioceramic Sealer: A Prospective Cohort Study

使用单锥技术和Ceraseal预混合生物陶瓷封闭剂进行根管治疗的三年临床结果：一项前瞻性队列研究

This study aimed to evaluate pulp regeneration by comparing the application of native chitosan-based scaffolds with enzymatically modified chitosan-based scaffolds in mature teeth with apical lesions, using clinical and radiographic assessments.

Aliaa Alshahhoud

Mohamad Salem Rekab

Nizar Issa

Ahmad Manadili

Yasser Alsayed Tolibah

Application of Three Types of Scaffolds in Pulp Regeneration for Permanent Mature Teeth with Periapical Lesions: A Randomized Controlled Trial

三种支架材料在伴有根尖周病变的恒磨牙牙髓再生中的应用：一项随机对照试验

The present study aimed to evaluate the effect of heat-treated nickel titanium (NiTi) files TruNatomy and XP- Endo Shaper on the major apical foramen deformation and enlargement in curved root canals using area, circularity, and Feret's diameter ratio.

Tahira Hamid

Azhar Malik

Ajay Kumar

Saima Hamid

Shamim Anjum

Morphological Changes of the Apical Foramen in Curved Root Canals After Use of Different Heat Treated NiTi Rotary Files: A Scanning Electron Microscopy Study

不同热处理镍钛旋转锉使用后弯曲根管根尖孔形态变化的扫描电镜研究

Abbreviation	Eur. Endod. J.
Journal Impact	1.68
Quartiles(Global)	DENTISTRY, ORAL SURGERY & MEDICINE(Q3)

ISSN	2548-0839
h-index	12

Publication Information	Publisher: Kare Publishing，Publishing cycle: ，Journal Type: journal，Open Access Journals: Yes
Basic data	Year of publication: 2016，Proportion of original research papers: 84.38%，Self Citation Rate:6.20%， Gold OA Rate: 81.58%
Journal Fees	$Details
Average review cycle	16 weeks

European Endodontic Journal

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Shaping Ability of Different Rotary and Reciprocating File Systems in Simulated S-Shaped Root Canals

Possible Involvement of X-Box Binding Protein-1 in the Onset of Pulpitis

Histopathological Assessment of Tricalcium Aluminate-free Mineral Trioxide Aggregate and Two Antibacterial Enhanced Mineral Trioxide Aggregates As Pulpotomy Agents in Rat Model

Three-year Clinical Outcome of Root Canal Treatment Using a Single-cone Technique and Ceraseal Premixed Bioceramic Sealer: A Prospective Cohort Study

Application of Three Types of Scaffolds in Pulp Regeneration for Permanent Mature Teeth with Periapical Lesions: A Randomized Controlled Trial

Possible Involvement of X-Box Binding Protein-1 in the Onset of Pulpitis

Histopathological Assessment of Tricalcium Aluminate-free Mineral Trioxide Aggregate and Two Antibacterial Enhanced Mineral Trioxide Aggregates As Pulpotomy Agents in Rat Model

Three-year Clinical Outcome of Root Canal Treatment Using a Single-cone Technique and Ceraseal Premixed Bioceramic Sealer: A Prospective Cohort Study

Application of Three Types of Scaffolds in Pulp Regeneration for Permanent Mature Teeth with Periapical Lesions: A Randomized Controlled Trial

Morphological Changes of the Apical Foramen in Curved Root Canals After Use of Different Heat Treated NiTi Rotary Files: A Scanning Electron Microscopy Study