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https://www.readbyqxmd.com/read/29930783/root-canal-treatment-of-dilacerated-second-maxillary-premolars-planning-the-shaping-procedure
#1
Davide Mancino, Naji Kharouf
This article aims at investigating endodontic anatomical variants in the human maxillary premolars allowing the planning of safer and faster shaping procedures. Endodontic literature describes maxillary 2nd premolars as some of the easiest teeth to treat, as they have either one or two straight canals. Rarely they may sometimes have two dilacerated canals. This paper reports two clinical cases of maxillary premolars whose anatomy is quite unusual. In the first case report we describe a maxillary 2nd premolar with a single root and two dilacerated merged canals...
June 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29930374/one-billion-people-have-experienced-a-traumatic-dental-injury
#2
Derek Richards
Data sourcesPubMed, Scopus, Web of Science and Google Scholar databases. Websites of scientific societies of dental traumatology, paediatric dentistry, endodontics, oral-maxillofacial surgery and World Health Organization and the US Centres for Disease Control and Prevention were searched. There were no language restrictions, but the search was limited to the years 1996-2016.Study selectionObservational studies reporting proportions of individuals with at least one TDI (prevalence) and who developed TDI (incidence rate) were considered...
June 2018: Evidence-based Dentistry
https://www.readbyqxmd.com/read/29928832/amalgam-alternatives-cost-effectiveness-and-value-of-information-analysis
#3
F Schwendicke, G Göstemeyer, M Stolpe, J Krois
We aimed to assess the cost-effectiveness of amalgam alternatives-namely, incrementally placed composites (IComp), composites placed in bulk (BComp), and glass ionomer cements (GIC). In a sensitivity analysis, we also included composite inlays (CompI) and incrementally placed bulk-fills (IBComp). Moreover, the value of information (VOI) regarding the effectiveness of all strategies was determined. A mixed public-private-payer perspective in the context of Germany was adopted. Bayesian network meta-analyses were performed to yield effectiveness estimates (relative risk [RR] of failure)...
June 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29926951/periodontitis-consensus-report-of-workgroup-2-of-the-2017-world-workshop-on-the-classification-of-periodontal-and-peri-implant-diseases-and-conditions
#4
Panos N Papapanou, Mariano Sanz, Nurcan Buduneli, Thomas Dietrich, Magda Feres, Daniel H Fine, Thomas F Flemmig, Raul Garcia, William V Giannobile, Filippo Graziani, Henry Greenwell, David Herrera, Richard T Kao, Moritz Kebschull, Denis F Kinane, Keith L Kirkwood, Thomas Kocher, Kenneth S Kornman, Purnima S Kumar, Bruno G Loos, Eli Machtei, Huanxin Meng, Andrea Mombelli, Ian Needleman, Steven Offenbacher, Gregory J Seymour, Ricardo Teles, Maurizio S Tonetti
A new periodontitis classification scheme has been adopted, in which forms of the disease previously recognized as "chronic" or "aggressive" are now grouped under a single category ("periodontitis") and are further characterized based on a multi-dimensional staging and grading system. Staging is largely dependent upon the severity of disease at presentation as well as on the complexity of disease management, while grading provides supplemental information about biological features of the disease including a history-based analysis of the rate of periodontitis progression; assessment of the risk for further progression; analysis of possible poor outcomes of treatment; and assessment of the risk that the disease or its treatment may negatively affect the general health of the patient...
June 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29926950/the-etiology-of-hard-and-soft-tissue-deficiencies-at-dental-implants-a-narrative-review
#5
Christoph H F Hämmerle, Dennis Tarnow
OBJECTIVE: The objective of the present paper was to review factors and conditions that are associated with hard and soft-tissue deficiencies at implant sites. IMPORTANCE: Hard- and soft-tissue deficiencies at dental implants are common clinical findings. They can lead to complications and compromise implant survival and, hence, may require therapeutic interventions. It is, therefore, important to understand the etiology of hard and soft-tissue deficiencies. Based on this understanding, strategies should be developed to correct hard and soft-tissue deficiencies with the aim of improving clinical outcomes of implant therapy...
June 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29926942/acute-periodontal-lesions-periodontal-abscesses-and-necrotizing-periodontal-diseases-and-endo-periodontal-lesions
#6
David Herrera, Belén Retamal-Valdes, Bettina Alonso, Magda Feres
OBJECTIVE: To critically evaluate the existing literature on acute lesions occurring in the periodontium (periodontal abscesses [PA], necrotizing periodontal diseases [NPD], and endo-periodontal lesions [EPL]) to determine the weight of evidence for the existence of specific clinical conditions that may be grouped together according to common features. The ultimate goal is to support an objective classification system. IMPORTANCE: Although PA, NPD, and EPL occur with relatively low frequency, these lesions are of clinical relevance, because they require immediate management and might severely compromise the prognosis of the tooth...
June 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29926502/the-etiology-of-hard-and-soft-tissue-deficiencies-at-dental-implants-a-narrative-review
#7
Christoph H F Hämmerle, Dennis Tarnow
OBJECTIVE: The objective of the present paper was to review factors and conditions that are associated with hard and soft-tissue deficiencies at implant sites. IMPORTANCE: Hard- and soft-tissue deficiencies at dental implants are common clinical findings. They can lead to complications and compromise implant survival and, hence, may require therapeutic interventions. It is, therefore, important to understand the etiology of hard and soft-tissue deficiencies. Based on this understanding, strategies should be developed to correct hard and soft-tissue deficiencies with the aim of improving clinical outcomes of implant therapy...
June 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29926493/acute-periodontal-lesions-periodontal-abscesses-and-necrotizing-periodontal-diseases-and-endo-periodontal-lesions
#8
David Herrera, Belén Retamal-Valdes, Bettina Alonso, Magda Feres
OBJECTIVE: To critically evaluate the existing literature on acute lesions occurring in the periodontium (periodontal abscesses [PA], necrotizing periodontal diseases [NPD], and endo-periodontal lesions [EPL]) to determine the weight of evidence for the existence of specific clinical conditions that may be grouped together according to common features. The ultimate goal is to support an objective classification system. IMPORTANCE: Although PA, NPD, and EPL occur with relatively low frequency, these lesions are of clinical relevance, because they require immediate management and might severely compromise the prognosis of the tooth...
June 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29926490/periodontitis-consensus-report-of-workgroup-2-of-the-2017-world-workshop-on-the-classification-of-periodontal-and-peri-implant-diseases-and-conditions
#9
Panos N Papapanou, Mariano Sanz, Nurcan Buduneli, Thomas Dietrich, Magda Feres, Daniel H Fine, Thomas F Flemmig, Raul Garcia, William V Giannobile, Filippo Graziani, Henry Greenwell, David Herrera, Richard T Kao, Moritz Kebschull, Denis F Kinane, Keith L Kirkwood, Thomas Kocher, Kenneth S Kornman, Purnima S Kumar, Bruno G Loos, Eli Machtei, Huanxin Meng, Andrea Mombelli, Ian Needleman, Steven Offenbacher, Gregory J Seymour, Ricardo Teles, Maurizio S Tonetti
A new periodontitis classification scheme has been adopted, in which forms of the disease previously recognized as "chronic" or "aggressive" are now grouped under a single category ("periodontitis") and are further characterized based on a multi-dimensional staging and grading system. Staging is largely dependent upon the severity of disease at presentation as well as on the complexity of disease management, while grading provides supplemental information about biological features of the disease including a history-based analysis of the rate of periodontitis progression; assessment of the risk for further progression; analysis of possible poor outcomes of treatment; and assessment of the risk that the disease or its treatment may negatively affect the general health of the patient...
June 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29922335/comparative-evaluation-of-enterococcus-faecalis-counts-in-different-tapers-of-rotary-system-and-irrigation-fluids-an-ex-vivo-study
#10
Amir Arsalan Navabi, Abbas Ali Khademi, Masoud Khabiri, Paridokht Zarean, Parichehr Zarean
Background: Bacteria and their by-products are etiological factors for the failure of endodontic treatment. Reduction of root canal bacterial contamination is one of the chief aims of root canal therapy. The aim of this study was to compare the effects of different rotary file tapers and two irrigation fluids on Enterococcus faecalis counts. Materials and Methods: In this ex vivo study Root canals of 72 human upper lateral incisors were enlarged to ISO #20 K-file...
May 2018: Dental Research Journal
https://www.readbyqxmd.com/read/29910031/biomechanical-properties-of-first-maxillary-molars-with-different-endodontic-cavities-a-finite-element-analysis
#11
Qianzhou Jiang, Yuting Huang, XinRan Tu, Zhengmao Li, Ying He, Xuechao Yang
INTRODUCTION: The aim of this study was to compare the biomechanical properties of first maxillary molars with different endodontic cavities using the finite element method. METHODS: Three finite element analysis models of a maxillary first molar were designed and constructed with 3 different types of endodontic cavities: a traditional endodontic cavity, a conservative endodontic cavity, and an extended endodontic cavity. An intact tooth model was used for comparison...
June 14, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29910001/effects-of-three-drying-methods-of-post-space-dentin-bonding-used-in-a-direct-resin-composite-core-build-up-method
#12
Taichi Iwashita, Atsushi Mine, Mariko Matsumoto, Hayaki Nakatani, Mami Higashi, Asuka Kawaguchi-Uemura, Tomoshige Kabetani, Yuko Tajiri, Dai Imai, Ryosuke Hagino, Jiro Miura, Takuya Minamino, Hirofumi Yatani
PURPOSE: The purpose of this study was to evaluate drying methods for post space dentin bonding in a direct resin composite core build-up method. METHODS: Experiment 1: Four root canal plastic models, having diameters of 1.0 or 1.8mm and parallel or tapered shapes, were prepared. After drying each post space using three drying methods (air drying, paper-point drying, or ethanol drying, which involves filling the space with 99.5 vol% ethanol followed by air drying), the residual liquid in the models was weighed...
June 14, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29908290/antibacterial-efficacy-of-an-endodontic-sonic-powered-irrigation-system-an-in-vitro-study
#13
Chang Zeng, Jon Willison, Mohamed M Meghil, Brian E Bergeron, Christopher W Cutler, Franklin R Tay, Lina Niu, Jingzhi Ma
OBJECTIVE: To evaluate the efficacy of EDDY, a new sonic-powered irrigation system, in reducing intracanal bacteria load. METHODS: Thirty-eight instrumented, autoclaved single-rooted human premolars were inoculated with Enterococcus faecalis (ATCC-29212) for 21 days. Two teeth were used as negative control without bacterial contamination. For the bacteria-inoculated teeth, 6 were used as positive control without irrigation. The remaining 30 teeth were randomly divided into 2 groups (N = 15), using 3% NaOCl as irrigant: (A) 30-gauge syringe needle irrigation (SNI), (B) EDDY (VDW, Munich, Germany)...
June 13, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29905503/antibacterial-and-smear-layer-removal-efficacy-of-er-yag-laser-irradiation-by-photon-induced-photoacoustic-streaming-in-primary-molar-root-canals-a-preliminary-study
#14
Emre Korkut, Emrah Torlak, Onur Gezgin, Hazal Özer, Yağmur Şener
OBJECTIVE: The objective of this study was to compare antibacterial and smear layer removal efficacy of the erbium:yttrium-aluminium-garnet (Er:YAG) laser irradiation by photon-induced photoacoustic streaming (PIPS), neodymium:yttrium-aluminium-garnet (Nd:YAG), and diode lasers and conventional irrigation agent in primary molar root canals. BACKGROUND: The selection, application, and activation of the irrigant are important factors affecting the success of the endodontic treatment...
June 15, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29904966/effect-of-the-calcium-silicate-based-sealer-removal-protocols-and-time-point-of-acid-etching-on-the-dentin-adhesive-interface
#15
Jéssika Mayhara Pereira Morais, Keli Regina Victorino, Wilfredo Gustavo Escalante-Otárola, Keren Cristina Fagundes Jordão-Basso, Regina Guenka Palma-Dibb, Milton Carlos Kuga
The aim of the study was to evaluate the effects when acid etching on the dentin surface was immediately performed (I) or 7 days (D) after calcium silicate-based sealer (MTA Fillapex) removal, using 95% ethanol (E) or xylol (X). First study, 60 bovine incisor dentin specimens were impregnated with sealer and divided into six groups (n = 10): (EI), E + I; (XI), X + I; (ED), E + D; (XD), X + D, (UN), untreated and (MR), mechanical removal of sealer. Scanning electron microscopy (SEM) images (500×) were obtained from each specimen and scores assessed the sealer residues persistence...
June 15, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29904797/hyaluronic-acid-hydrogels-incorporating-platelet-lysate-enhance-human-pulp-cell-proliferation-and-differentiation
#16
Leopoldina D F Almeida, Pedro S Babo, Cristiana R Silva, Márcia T Rodrigues, Josimeri Hebling, Rui L Reis, Manuela E Gomes
The restoration of dentine-pulp complex remains a challenge for dentists; nonetheless, it has been poorly addressed. An ideal system should modulate the host response, as well as enable the recruitment, proliferation and differentiation of relevant progenitor cells. Herein was proposed a photocrosslinkable hydrogel system based on hyaluronic acid (HA) and platelet lysate (PL). PL is a cocktail of growth factors (GFs) and cytokines involved in wound healing orchestration, obtained by the cryogenic processing of platelet concentrates, and was expected to provide the HA hydrogels specific biochemical cues to enhance pulp cells' recruitment, proliferation and differentiation...
June 14, 2018: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29903559/optical-coherence-tomography
#17
REVIEW
Rujuta A Katkar, Satyashankara Aditya Tadinada, Bennett T Amaechi, Daniel Fried
Optical coherence tomography (OCT) is a noninvasive diagnostic technique providing cross-sectional images of biologic structures based on the differences in tissue optical properties. OCT has been widely used in numerous clinical applications and is becoming popular as a promising technology in dentistry. Today, dental hard (tooth) and soft (hard palate mucosa and gingiva mucosa) tissues are visualized with OCT. With new developments in technology, the applications of OCT are being investigated in various fields in dentistry, such as to detect microleakage around restoration, tooth cracks/fractures, examination of periodontal tissues/pockets, early detection of oral cancerous tissues, and in endodontics for location of pulp canal...
July 2018: Dental Clinics of North America
https://www.readbyqxmd.com/read/29900920/effectiveness-of-nanoparticles-solutions-and-conventional-endodontic-irrigants-against-enterococcus-faecalis-biofilm
#18
Josiane de Almeida, Bruna Casagrande Cechella, Anarela Vassen Bernardi, Andrea de Lima Pimenta, Wilson Tadeu Felippe
Context: To overcome the challenge imposed by the presence of biofilm and reach significant bacterial reduction of the root canals, many irrigants have been indicated during endodontic treatment, among them nanoparticles solutions. Aims: This study aims to evaluate the effectiveness of experimental solutions containing silver and zinc oxide nanoparticles (ZnO Np) and conventional endodontic irrigants against Enterococcus faecalis biofilm, in root canals. Methods: Seventy-six extracted human teeth were biomechanically prepared and sterilized...
May 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29900907/preventive-endodontics-by-direct-pulp-capping-with-restorative-dentin-substitute-biodentine-a-series-of-fifteen-cases
#19
Kavita Dube, Pradeep Jain, Arti Rai, Bonny Paul
Introduction: Treatment of mechanical exposure of the pulp during caries excavation presents a clinical challenge. In this case series of 15 patients, with a follow-up period of over a year, the outcome of direct pulp capping with Biodentine (septodont) after mechanical pulp exposure was assessed. Aim of Study: The aim of this study is to evaluate the outcome of direct pulp capping with Biodentine in deeply carious teeth when pulp was mechanically exposed during caries excavation and cavity preparation...
May 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/29900562/3d-printed-replicas-for-endodontic-education
#20
M Reymus, C Fotiadou, A Kessler, K Heck, R Hickel, C Diegritz
AIM: To assess the feasibility of producing artificial teeth for endodontic training using 3D printing technology, to analyse the accuracy of the printing process, and to evaluate the teeth by students when used during training. METHODOLOGY: Sound extracted human teeth were selected, digitalized by cone beam computed tomography (CBCT) and appropriate software and finally reproduced by a stereolithographic printer. The printed teeth were scanned and compared with the original ones (trueness) and to one another (precision)...
June 14, 2018: International Endodontic Journal
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