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Journal of Endodontics

Thomas Giraud, Charlotte Jeanneau, Madison Bergmann, Patrick Laurent, Imad About
INTRODUCTION: On stimulation by lipoteichoic acid or by a physical injury, fibroblasts have been shown to play a major role in the initiation of the pulp inflammatory reaction and healing through secretion of complement proteins and growth factors. The application of direct pulp-capping materials on these cells may interfere with the inflammatory and the healing processes within the pulp's inextensible environment. This work was designed to study in vitro the effects of silicate-based materials on pulp fibroblast modulation of the initial steps of pulp inflammation and healing...
September 11, 2018: Journal of Endodontics
Peter Z Tawil, Elisa K Arnarsdottir, Ceib Phillips, Sigurdur R Saemundsson
INTRODUCTION: This microsurgical clinical study evaluated if teeth that have undergone endodontic retreatment are associated with more dentinal defects than primary root canal-treated teeth. METHODS: One hundred fifty-five patients who underwent periapical microsurgery treatment in a private practice setting were evaluated. The root ends were resected, and the roots were inspected for the presence of dentinal defects through the surgical operating microscope with the help of a 0...
August 31, 2018: Journal of Endodontics
Domenico Ricucci, José F Siqueira, Simona Loghin, Antonio Grosso, Erica M Valois, Alex S M Leal
This article describes 2 unusual cases of mucosal fenestration associated with necrotic infected teeth, resulting in exposure of the root apex to the oral cavity. Both cases consisted of maxillary incisors with pulp necrosis and radiographic/tomographic evidence of apical periodontitis. Clinically, the root apex was exposed to the oral cavity through a fenestration in both bone and mucosa and covered with bacterial plaque and calculus. These teeth were treated by a combination of nonsurgical and surgical endodontic treatment...
August 31, 2018: Journal of Endodontics
Do-Hee Kim, Ji-Hyun Jang, Bin-Na Lee, Hoon-Sang Chang, In-Nam Hwang, Won-Mann Oh, Sun-Hun Kim, Kyung-San Min, Jeong-Tae Koh, Yun-Chan Hwang
INTRODUCTION: Few studies have reported direct pulp capping in inflamed pulp conditions. The purpose of this study was to investigate the in vitro and in vivo responses of dental pulp during direct pulp capping using various pulp capping materials in inflamed conditions. METHODS: Human dental pulp cells were treated with lipopolysaccharide (LPS) and cultured with Dycal (Dentsply Caulk, Milford, DE), ProRoot MTA (Dentsply Maillefer, Ballaigues, Switzerland), and Endocem MTA (Maruchi, Wonju, South Korea)...
August 30, 2018: Journal of Endodontics
Mohamed Nageh, Geraldine M Ahmed, Alaa A El-Baz
INTRODUCTION: The aim of the present study was to evaluate the possibility of regaining pulp sensibility in mature necrotic teeth using modified regenerative endodontic procedures by inducing bleeding in root canals and using platelet-rich fibrin (PRF). METHODS: Fifteen patients with necrotic pulp with symptomatic or asymptomatic apical periodontitis were included. At the first visit, the tooth was anesthetized, and an access cavity was performed. Mechanical preparation of root canals was performed using the standardized technique reaching apical canal preparation to K-file size #60-80...
August 30, 2018: Journal of Endodontics
Juheon Seung, Michael D Weir, Mary Anne S Melo, Elaine Romberg, Ali Nosrat, Hockin H K Xu, Patricia A Tordik
INTRODUCTION: The purpose of this study was to investigate the physical and antibacterial properties of a resin sealer mixed with a quaternary ammonium compound, dimethylaminododecyl methacrylate (DMAHDM) and nanosilver (NAg). METHODS: A pilot study was completed to determine the highest concentrations of DMAHDM and NAg that did not significantly alter the physical properties (setting time, flow, solubility, and dimensional change) of AH Plus (Dentsply Sirona, York, PA) when added to the sealer...
August 30, 2018: Journal of Endodontics
Shahriar Shahi, Saeed Rahimi, Hamid Reza Yavari, Negin Ghasemi, Fereshte Ahmadi
INTRODUCTION: Previous studies have reported that it is difficult to obtain proper anesthesia in mandibular molars with symptomatic irreversible pulpitis, and supplemental injections are usually unavoidable. The aim of the present study was to determine the anesthetic efficacy of articaine in mandibular first molars with symptomatic irreversible pulpitis with 3 injection methods: an inferior alveolar nerve block (IANB), an IANB with an intraligamentary injection, and an IANB with buccal infiltration before initiating the endodontic treatment...
August 30, 2018: Journal of Endodontics
Gaya C S Vieira, Henrique S Antunes, Alejandro R Pérez, Lucio S Gonçalves, Fernanda E Antunes, José F Siqueira, Isabela N Rôças
In this case series, bacterial reduction promoted by antimicrobial photodynamic therapy (PDT) used during endodontic surgery was evaluated. Cases were also followed up, and the surgical outcome was reported. The study consisted of 19 teeth with posttreatment apical periodontitis that were consecutively treated by endodontic surgery. After apicoectomy, the root end was treated with PDT using methylene blue as the photosensitizer. Bacteriologic samples were taken from both the cut root surface and the root-end cavity before and after PDT...
August 28, 2018: Journal of Endodontics
Saleem Abdulrab, Jean C Rodrigues, Sadiq Ali Al-Maweri, Esam Halboub, Ahmed Yaseen Alqutaibi, Hatem Alhadainy
INTRODUCTION: This systematic review and meta-analysis assessed the available evidence regarding the effect of apical patency versus nonpatency on postendodontic pain in adult patients. METHODS: The study adhered strictly to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. PubMed, Scopus, MEDLINE via Ovid, Google Scholar, and the Web of Science databases were searched up to April 2018 to retrieve the most relevant studies. Two authors evaluated the studies for eligibility criteria and assessed the risk of bias using the Cochrane tool...
August 28, 2018: Journal of Endodontics
Hsiao-Wen Yeh, Chi-Fu Chiang, Pei-Hsuan Chen, Chi-Chun Su, Yu-Chiao Wu, Lu Chou, Ren-Yeong Huang, Shyun-Yeu Liu, Yi-Shing Shieh
INTRODUCTION: In this study, we examined the effect of mineral trioxide aggregate (MTA) on macrophage polarization and the potential involvement of Axl/nuclear factor kappa B (NF-κB) signaling in mediating the effect of MTA. METHODS: The human monocyte cell line THP-1 was cultured with MTA solution for 1, 2, or 3 days, and the population change of M2 macrophages was analyzed by flow cytometry. Expression of M2 cytokines was examined by enzyme-linked immunosorbent assay...
August 28, 2018: Journal of Endodontics
Hassan M Yehia, Neville J McDonald, Sharon Aronovich, Richard Gardner, Marita R Inglehart
INTRODUCTION: Research shows that a high percentage of endodontic patients are interested in receiving intravenous (IV) sedation. The objectives of this study were to assess endodontists' IV sedation-related education, attitudes, and professional behavior and to explore whether providing versus not offering IV sedation procedures was associated with IV-related education and attitudes and whether background characteristics and education were related with IV sedation attitudes and behavior...
August 28, 2018: Journal of Endodontics
Hussam Alfawaz, Abdullah Alqedairi, Hala Alsharekh, Eman Almuzaini, Shahd Alzahrani, Ahmed Jamleh
INTRODUCTION: We tested the cyclic fatigue resistance of heat-treated instruments immersed in sodium hypochlorite solution under different concentrations and temperature conditions. METHODS: Based on the irrigating solution's concentration and temperature, 135 ProTaper Gold (PTG; Dentsply Sirona, York, PA) F2 instruments were divided equally into 9 groups of 15. Cyclic fatigue testing was performed by using a block with artificial canals with a curvature angle of 60°, a curvature radius of 5 mm, and a curvature center 5 mm from the instrument tip...
August 25, 2018: Journal of Endodontics
Cosimo Nardi, Linda Calistri, Giulia Grazzini, Isacco Desideri, Chiara Lorini, Mariaelena Occhipinti, Francesco Mungai, Stefano Colagrande
INTRODUCTION: This study aimed to evaluate the diagnostic accuracy of panoramic radiography (PAN) for the detection of clinically/surgically confirmed apical periodontitis (AP) in root canal-treated teeth using cone-beam computed tomographic (CBCT) imaging as the reference standard. METHODS: Two hundred forty patients with endodontically treated AP (diseased group) were detected via CBCT imaging using the periapical index system. They were divided into groups of 20 each according to lesion size (2-4...
August 25, 2018: Journal of Endodontics
Sônia T O Lara-Mendes, Camila de Freitas M Barbosa, Vinícius C Machado, Caroline C Santa-Rosa
This article describes an endodontic treatment technique performed through a new minimally invasive approach that leads to no tooth damage at the incisal edge and uses cone-beam computed tomographic (CBCT) imaging and 3-dimensional guides. A 26-year-old patient presented with pain in the anterior region of the maxilla and reported having suffered dental trauma 13 years prior. Radiographic examination exhibited no visible root canal on tooth # 9 with a slight thickening in the apical periodontal ligament space...
August 25, 2018: Journal of Endodontics
Melissa A Marchesan, Adam Lloyd, David J Clement, Joseph D McFarland, Shimon Friedman
INTRODUCTION: The purpose of this study was to provide information regarding the debate on contracted endodontic cavities (CECs); their impacts on angle, location, and radius of the primary canal curvature (PCC) were assessed in type IV mesial root canals of mandibular molars at different stages of instrumentation. Impacts on treatment time were also assessed. METHODS: Twenty-four teeth were matched by radiographic and micro-computed tomographic criteria and accessed via CECs (CEC, n = 12) or nonextended traditional endodontic cavities (TECs, n = 12)...
August 25, 2018: Journal of Endodontics
Andreas Riis, Silvio Taschieri, Massimo Del Fabbro, Thomas Kvist
INTRODUCTION: The aim of the study was to determine long-term tooth survival after endodontic retreatment and whether the presence of intraradicular posts influences the outcome. METHODS: Ninety-five teeth were randomly assigned to surgical or nonsurgical endodontic retreatment. Forty-seven teeth in 45 patients were treated by conventional endodontic surgery and 48 teeth (47 patients) by nonsurgical retreatment, including the removal of intraradicular posts in 37 (77%)...
August 25, 2018: Journal of Endodontics
Francesc Abella, Ferran Ribas, Miguel Roig, Jose Antonio González Sánchez, Fernando Durán-Sindreu
Autotransplantation exhibits a number of advantages compared with other treatment options (ie, dental implants or fixed partial prostheses), such as greater resistance to occlusal loading, maintenance of the periodontal ligament and surrounding bone, and the potential for better esthetics. The aim of this study was to determine clinical outcomes for autotransplanted teeth with complete root formation using 3-dimensional-printed guiding templates and tooth replicas. Twenty-seven third molars with completely formed roots were autotransplanted...
August 25, 2018: Journal of Endodontics
Gianluca Plotino, Nicola M Grande, Luca Testarelli, Gianluca Gambarini, Raffaella Castagnola, Andrea Rossetti, Taha Özyürek, Massimo Cordaro, Leonzio Fortunato
INTRODUCTION: The aim of the present study was to investigate the impact of ambient temperature on the life span of nickel-titanium (NiTi) files. METHODS: Cyclic fatigue testing of NiTi instruments was performed in a stainless steel artificial canal. During the experiment, 4 different temperatures (0°C, 20°C, 35°C, and 39°C) were used in a thermostatic bath controlled using electronic and infrared controls. Eighty R25 Reciproc Blue (VDW, Munich, Germany) and 80 R25 Reciproc (VDW) instruments were reciprocated in the artificial canal until fracture occurred, and the time to fracture and the length of the fractured fragment were recorded...
August 22, 2018: Journal of Endodontics
Hüseyin Sinan Topçuoğlu, Gamze Topçuoğlu, Hakan Arslan
INTRODUCTION: This study compared the effect of several final irrigation agitation techniques (sonic agitation, passive ultrasonic irrigation, and manual dynamic agitation [MDA]) in comparison with needle irrigation on postoperative pain in mandibular molar teeth with symptomatic irreversible pulpitis. METHODS: One hundred sixty-eight patients with a single tooth diagnosed as symptomatic irreversible pulpitis were selected. Teeth were randomly assigned to 4 groups based on the final irrigation methods...
August 22, 2018: Journal of Endodontics
Nastaran Meschi, Mostafa EzEldeen, Andres Eduardo Torres Garcia, Reinhilde Jacobs, Paul Lambrechts
INTRODUCTION: A regenerative endodontic procedure (REP) is a biologically based treatment to functionally replace the pulp of infected immature permanent teeth. The purpose of this retrospective case series was to assess the outcome of REPs of infected immature permanent teeth in terms of periapical bone healing (PBH), root development (RD), and pulp vitality. METHODS: Five patients (1 tooth/patient) who had undergone a REP based on the cell homing concept were recalled 3, 6, 12, 24, and 36 months postoperatively...
August 22, 2018: Journal of Endodontics
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