CONSORT Randomized Clinical Trial Effect of Preoperative Acetaminophen/Hydrocodone on the Efficacy of the Inferior Alveolar Nerve Block in Patients with Symptomatic Irreversible Pulpitis: A Prospective, Randomized, Double-blind, Placebo-controlled Study Spencer Fullmer, Melissa Drum, Al Reader, John Nusstein, Mike Beck Review Article Human Cytomegalovirus and Epstein-Barr Virus in Etiopathogenesis of Apical Periodontitis: A Systematic Review Aleksandar Jakovljevic, Miroslav Andric Clinical Research Nonendodontic Lesions Misdiagnosed as Apical Periodontitis Lesions: Series of Case Reports and Review of Literature Flavia Sirotheau Corrêa Pontes, Felipe Paiva Fonseca, Adriana Souza de Jesus, Ana Carolina Garcia Alves, Leila Marques Araújo, Liliane Silva do Nascimento, Hélder Antônio Rebelo Pontes Effect of 1440-Nanometer Neodymium:Yttrium-Aluminum-Garnet Laser Irradiation on Pain and Neuropeptide Reduction: A Randomized Prospective Clinical Trial Yeon-Jee Yoo, Won-Jun Shon, Seung-Ho Baek, Mo K. Kang, Hyeon-Cheol Kim, WooCheol Lee Susceptibility of As-yet-uncultivated and Difficult-to-culture Bacteria to Chemomechanical Procedures Isabela N. Rôças, Mônica A.S. Neves, José C. Provenzano, José F. Siqueira Effect of Working Length Measurement by Electronic Apex Locator or Digital Radiography on Postoperative Pain: A Randomized Clinical Trial Aysun Kara Tuncer, Müzeyyen Gerek Detection of Various Anatomic Patterns of Root Canals in Mandibular Incisors Using Digital Periapical Radiography, 3 Cone-beam Computed Tomographic Scanners, and Micro– Computed Tomographic Imaging Luciana Maria Paes da Silva Ramos Fernandes, Dwight Rice, Ronald Ordinola-Zapata, Ana Lucia Alvares Capelozza, Clovis Monteiro Bramante, David Jaramillo, Heidi Christensen A Standardized Novel Method to Measure Radiographic Root Changes after Endodontic Therapy in Immature Teeth Natasha M. Flake, Jennifer L. Gibbs, Anibal Diogenes, Kenneth M. Hargreaves, Asma A. Khan Basic Research Biology Concentration-dependent Effect of Sodium Hypochlorite on Stem Cells of Apical Papilla Survival and Differentiation David E. Martin, Jose Flavio A. De Almeida, Michael A. Henry, Zin Z. Khaing, Christine E. Schmidt, Fabricio B. Teixeira, Anibal Diogenes Imbalance of Interleukin-17+ T-cell and Foxp3+ Regulatory T-cell Dynamics in Rat Periapical Lesions Shasha Yang, Lingxin Zhu, Lan Xiao, Ya Shen, Li Wang, Bin Peng, Markus Haapasalo Distribution of Mast Cells and Macrophages and Expression of Interleukin-6 in Periapical Cysts Igor Vieira Bracks, Luciana Armada, Lúcio Souza Gonçalves, Fábio Ramôa Pires Lipopolysaccharide Enhances Wnt5a Expression through Toll-like Receptor 4, Myeloid Differentiating Factor 88, Phosphatidylinositol 3-OH Kinase/AKT and Nuclear Factor Kappa B Pathways in Human Dental Pulp Stem Cells Wenxi He, Zhihua Wang, Zeyuan Zhou, Yaqing Zhang, Qinglin Zhu, Kewen Wei, Yuan Lin, Paul R. Cooper, Anthony J. Smith, Qing Yu Role of MiR-424 on Angiogenic Potential in Human Dental Pulp Cells Wei Liu, Qimei Gong, Junqi Ling, Wen Zhang, Zhaohui Liu, Jingjing Quan Ionic Extraction of a Novel Nano-sized Bioactive Glass Enhances Differentiation and Mineralization of Human Dental Pulp Cells Weiyu Gong, Zhiwei Huang, Yanmei Dong, Yehua Gan, Shenglin Li, Xuejun Gao, Xiaofeng Chen Proinflammatory Cytokines Induce Stromelysin-1–mediated Cell Proliferation in Dental Pulp Fibroblast-like Cells Hideyuki Yamaguchi, Nobuaki Ozeki, Rie Kawai, Tsuyoshi Tanaka, Taiki Hiyama, Kazuhiko Nakata, Makio Mogi, Hiroshi Nakamura In Vitro Regulation of CCL3 and CXCL12 by Bacterial By-products Is Dependent on Site of Origin of Human Oral Fibroblasts Carla Renata Sipert, Ana Carolina Morandini, Thiago José Dionísio, Maria Aparecida Andrade Moreira Machado, Sandra Helena Penha Oliveira, Ana Paula Campanelli, Winston Patrick Kuo, Carlos Ferreira Santos The Effect of Octamer-binding Transcription Factor 4B1 on microRNA Signals in Human Dental Pulp Cells with Inflammatory Response Qianyin Kong, Lu Liu, Yijun Huang, Fang Zhang, Xi Wei, Junqi Ling Technology Not All Electronic Foramen Locators Are Accurate in Teeth with Enlarged Apical Foramina: An In Vitro Comparison of 5 Brands Eduardo Akisue, Simone Domingues Gratieri, Fernando Branco Barletta, Celso Luiz Caldeira, Renata Grazziotin-Soares, Giulio Gavini Effects of ProRoot MTA, Bioaggregate, and Micromega MTA on Odontoblastic Differentiation in Human Dental Pulp Cells Seok-Woo Chang, So-Youn Lee, Kee-Yeon Kum, Eun-Cheol Kim Influence of Ferrule, Post System, and Length on Biomechanical Behavior of Endodontically Treated Anterior Teeth Paulo César Freitas Santos-Filho, Crisnicaw Veríssimo, Paulo Vinícius Soares, Rebeca Carniello Saltarelo, Carlos José Soares, Luis Roberto Marcondes Martins Cytotoxicity Evaluation of a New Resin-based Hybrid Root Canal Sealer: An In Vitro Study Elisabetta Cotti, Vittorio Petreucic, Dino Re, Gabriella Simbula Morphology and Microhardness of Dentin at the Furcation Area of Mandibular Molars Antonio M. Cruz-Filho, Luis Eduardo Souza Flamini, Jesus Djalma Pécora Case Report/Clinical Techniques Histologic Study of a Human Immature Permanent Premolar with Chronic Apical Abscess after Revascularization/Revitalization Patricia Becerra, Domenico Ricucci, Simona Loghin, Jennifer L. Gibbs, Louis M. Lin Treatment of a Hypertaurodontic Maxillary Second Molar in a Patient with 10 Taurodonts: A Case Report Amr Radwan, Sahng G. Kim