Articles - Endodontic Articles 10 en-us http://endodonticsjournal.com N/A http://endodonticsjournal.com muveqqeti@gmail.com 20 http://endodonticsjournal.com/articles/104/1/Is-pulpitis-painful/Page1.html P. L. Michaelson & G. R. Holland Division of Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USAAim.To determine whether inflamed dental pulps progress to necrosis without pain. Conclusions.Many teeth appear to progress to pulpal necrosis without the patient experiencing pain attributable to the pulp. muveqqeti@gmail.com (JofER editor) Thu, 25 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/103/1/Smooth-flexible-versus-active-tapered-shaft-design-using-NiTi-rotary-instruments/Page1.html L. Bergmans, J.Van Cleynenbreugel, M. Beullens, M.Wevers, B.VanMeerbeek & P. LambrechtsDepartments of Conservative Dentistry, Leuven BIOMAT Research Cluster,Radiology and Electrical Engineering, ESAT,Informatics and Telematics, LUDIT,Metallurgy and Materials Engineering, MTM, Catholic University of Leuven, Belgium.Aim.The aim of this study was to evaluate the influence of a smooth flexible versus active tapered shaft design on canal preparation by NiTi rotary techniques. Conclusions.In conclusion, under the conditions of this study, the smooth flexible (Lightspeed) as well as the active tapered (GT-rotary) shaft design was capable of preparing canals with good morphological characteristics in curved canals. Further studies are required to focus on other criteria for canal preparation such as efficiency, debris removal, resistance to deformation and/or fracture, time requirements and production costs. muveqqeti@gmail.com (JofER editor) Wed, 24 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/102/1/Patients-attitudes-to-rubber-dam/Page1.html D. A. Stewardson & E. S. McHugh.Conservative Dentistry, School of Dentistry, University of Birmingham, Birmingham, UK.Department of Statistics, University of Glasgow, Glasgow, UK. Aim.The aims of this study were to record patients views of their experience of RD use in an objective manner, and to evaluate the influence of some personal and clinical factors on patients’ opinion.  Conclusions.Further evidence is presented that: Patients generally are not averse to RD. Placement of rubber dam does not take long. Operator experience improves patient compliance. muveqqeti@gmail.com (JofER editor) Tue, 23 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/101/1/Effect-of-IL-1ra-on-human-dental-pulp-cells-and-pulpal-inflammation/Page1.html H-X. Lu, M-Z. Xiao, Z-Y. Niu, X-M. Guo, S-L. Zhao, H-G.Wang & H-Y. Guo Department of Endodontics, College of Stomatology, Fourth Military Medical University, Xian, China.Aim.This study was conducted to investigate the effect of interleukin-1 receptor antagonist (IL-1ra) on the LPS-induced interleukin-1b (IL-1b) synthesis in human dental pulp cells and to assess the role of IL- 1ra in pulpal inflammation. Conclusions.In conclusion, this study provides in vitro evidence that IL-1ra could inhibit IL-1b synthesis induced by FnLPS and implies that IL-1ra is a likely contributing molecular factor in the blockade of inflammation. muveqqeti@gmail.com (JofER editor) Mon, 22 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/100/1/Clinical-and-macroscopic-study-of-maxillary-molars-with-two-palatal-roots/Page1.html F. Baratto-Filho, L. F. Fariniuk, E. L. Ferreira, J. D. Pecora, A. M. Cruz-Filho & M. D. Sous a-Neto.Faculty of Dentistry, University of Ribeirao Preto, Ribeirao Preto, Brazil.Pontifıcia Universidade Catolica do Parana, Parana, Brazil.Faculty of Dentistry, University of Sao Paulo, Ribeirao Preto, Brazil.Aim.To report an anatomical variation in maxillary first molars.  Key learning points: Clinicians should be aware of uncommon anatomical variations in maxillary molars.The majority of maxillary first molars have three roots and four canals. Maxillary molars may have two canals in the palatal root. muveqqeti@gmail.com (JofER editor) Mon, 22 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/99/1/Influence-of-irrigants-on-the-coronal-microleakage-of-laterally-condensed-gutta-percha-root-fillings/Page1.html N.Vivacqua-Gomes, C. C. R. Ferraz, B. P. F. A. Gomes, A. A. Zaia, F. B.Teixeira & F. J. Souza-Filho School of Dentistry of Piracicaba, University of Campinas, Piracicaba, Brazil.Aim.To assess in vitro coronal microleakage in extracted human teeth after root-canal treatment, using different endodontic irrigants. Conclusions.Under the condition of this study, irrigation method during root-canal treatment influenced coronal microleakage. NaOCl + EDTA and chlorhexidine gel allowed better sealing following root filling. muveqqeti@gmail.com (JofER editor) Fri, 19 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/98/1/Periapical-changes-following-root-canal-treatment-observed-20-27-years-postoperatively/Page1.html O. Molven, A. Halse, I. Fristad & D. MacDonald-JankowskiDepartment of Odontology - Endodontics, Radiology, School of Dentistry, University of Bergen, Norway.Aim.The aim of the present study was to identify periapical changes 20-27 years after root-canal treatment. Conclusions. Late periapical changes in roots treated endodontically, with more successes than failures, were observed radiographically more than 10 years after treatment. The healing processes in most of the successful cases appeared to be disturbed and delayed by extension of root-filling material into the periapical area. Small radiolucencies around surplus material should not be misinterpreted as failures. Failures many years after treatment are most likely to be due to infection. muveqqeti@gmail.com (JofER editor) Fri, 19 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/97/1/Evaluation-of-healing-with-use-of-an-internal-matrix-to-repair-furcation-perforations/Page1.html M. Rafter,M. Baker, M. Alves, J. Daniel & N. Remeikis University of Illinois at Chicago, Chicago, IL, USA.Aim.The purpose of this study was to evaluate healing responses following repair of furcation perforations, with and without an internal matrix. Two matrix materials, HAPSET (65% non-resorbable hydroxyapatite and 35% plaster of paris) and hydroxyapatite were compared. Conclusions.Within this animal model healing responses are better when an internal matrix, whether HAPSET or hydroxyapatite, is used in the repair of furcation perforations. muveqqeti@gmail.com (JofER editor) Thu, 18 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/96/1/Calcium-sulphate-as-a-bone-substitute-for-various-osseous-defects-in-conjunction-with-apicectomy/Page1.html Y. Murashima, G. Yoshikawa, R.Wadachi, N. Sawada & H. Suda Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.Aim.The purpose of this study was to investigate the effect of calcium sulphate on various osseous defects when used in conjunction with apicectomy. Conclusions.In this study, the use of calciumsulphate was effective for bone regeneration in large osseous defects and ‘through and through’osseous defects but not in osseous defects communicating with the gingival sulcus. This study suggests that bone regeneration after apicectomy might be accelerated through the use of calcium sulphate filling. muveqqeti@gmail.com (JofER editor) Wed, 17 Sep 2008 00:00:00 -0500 http://endodonticsjournal.com/articles/95/1/A-survey-of-endodontic-practice-amongst-Flemish-dentists/Page1.html G. Slaus & P. BottenbergDepartment of Endodontics, and Department of Restorative Dentistry, Free University of Brussels, Brussels, Belgium.Aim.The purpose of this study was to gather information on routine endodontic treatment performed by Flemish (Dutch-speaking Belgian) dentists. Conclusions. This study showed that endodontic procedures in general practice and quality guidelines differ, especially in the low use of rubber dam, the frequent use of phenolic compounds and para-formaldehyde-containing disinfectants and the low frequency of detecting and filling a fourth canal in maxillary first molars. Despite a variety of new instruments and techniques, most GDPs used conventional preparation and obturation techniques. Endodontic treatment is still considered to be a tedious procedure. Owing to the lack of endodontic specialists, most GDPs reported performing re-treatments themselves. muveqqeti@gmail.com (JofER editor) Mon, 15 Sep 2008 00:00:00 -0500