Journal of Endodontics Research

The capability of two hand instrumentation techniques to remove the inner layer of dentine in oval canals

muveqqeti@gmail.com (JofER editor) — Wed, 08 Apr 2009 00:00:00 -0500

M.-K.Wu, L.W. M. van der Sluis & P. R.Wesselink Department of Cariology, Endodontology, Pedodontology, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, the Netherlands.Aim.To evaluate the capability of two hand instrumentation techniques, namely balanced force and circumferential filing, to remove the inner layer of dentine in oval canals. Conclusion.In oval canals, both the balanced force and circumferential filing techniques left large portions of the canal wall uninstrumented.

Efficiency of rotary nickel-titanium K3 instruments compared with stainless steel hand K-Flexofile. Part 2. Cleaning effectiveness and shaping ability in severely curved root canals of extracted teeth

muveqqeti@gmail.com (JofER editor) — Mon, 02 Mar 2009 00:00:00 -0600

E. Schafer & R. Schlingemann Department of Operative Dentistry, University of Munster, Munster, Germany.Aim.To determine the cleaning effectiveness and the shaping ability of K3 nickel-titanium rotary instruments and stainless steel hand K-Flexofiles during the preparation of curved root canals in extracted human teeth. Conclusions.Under the conditions of this study, K-Flexofiles allowed significantly better removal of debris than K3 instruments. K3 files maintained the original curvature significantly better. A number of K3 instruments fractured.

Efficiency of rotary nickel-titanium K3 instruments compared with stainless steel hand K-Flexofile. Part 1. Shaping ability in simulated curved canals

muveqqeti@gmail.com (JofER editor) — Sun, 01 Mar 2009 00:00:00 -0600

E. Schafer & H. Florek Department of Operative Dentistry, University of Munster, Munster, Germany.Aim.To compare the shaping ability of K3 rotary nickel-titanium instruments with stainless steel K-Flexofiles manipulated by hand. Part 1 of this two-part report describes the efficiency of these two instruments in simulated curved root canals. Conclusions.K3 instruments prepared curved canals rapidly and with minimal transportation towards the outer aspect of the curve. Fractures occurred significantly more often with K3.

Periapical endodontic surgery: a 3-year follow-up study

muveqqeti@gmail.com (JofER editor) — Sat, 28 Feb 2009 00:00:00 -0600

M. Maddalone & M. Gagliani Restorative & Endodontic Department, School of Dentistry, University of Milan, Milan, Italy.Aim.To monitor the outcome of periradicular surgery in a group of teeth treated with microsurgical technology and ultrasonic root-end preparation. Conclusion.Modern surgical endodontic procedures associated and EBA (Super Seal, Ogna Pharmaceuticals, Milan, Italy) root end fillings were successful over 3 years in 92.5% of cases.

Periapical health and treatment quality assessment of root-filled teeth in two Canadian populations

muveqqeti@gmail.com (JofER editor) — Sat, 21 Feb 2009 00:00:00 -0600

N. N. Dugas, H. P. Lawrence, P. E.Teplitsky, M. J. Pharoah & S. FriedmanDepartments of Endodontics, Community Dentistry, Radiology, Faculty of Dentistry, University of Toronto,124 Edward Street, Toronto, Ontario, Canada.Endodontics, College of Dentistry, University of Saskatchewan, 105 Wiggins Road, Saskatoon, Saskatchewan, Canada.Aim.The prevalence of apical periodontitis (AP) and the quality of root fillings and restorations were determined in two Canadian populations differing in availability of endodontists. Conclusions.The prevalence of AP in root-filled and untreated teeth was comparable to that reported in previous methodologically compatible studies. The quality of both the root filling and the restoration were found to impact on the periapical health of root-filled teeth, with the impact of the restoration being most critical when the quality of the root filling was adequate.

Campylobacter gracilis and Campylobacter rectus in primary endodontic infections

muveqqeti@gmail.com (JofER editor) — Mon, 16 Feb 2009 00:00:00 -0600

J.F. Siqueira Jr & I.N. RocasDepartment of Endodontics, Faculty of Dentistry, Estacio de Sa University, Rio de Janeiro, RJ, Brazil.Laboratory of Oral Microbiology, Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.Aim.A species-specific nested polymerase chain reaction (PCR) assay was used to investigate the occurrence of Campylobacter gracilis and C. rectus in primary root canal infections. Conclusions.Findings confirmed the assertion that both C. gracilis and C. rectus participate in infections of endodontic origin and suggest a pathogenetic role with regard to periradicular diseases.

Endodontic treatment performed by Flemish dentists. Part 2. Canal filling and decision making for referrals and treatment of apical periodontitis

muveqqeti@gmail.com (JofER editor) — Fri, 13 Feb 2009 00:00:00 -0600

G. M. G. Hommez, R. J. G. De Moor & M. BraemDepartment of Operative Dentistry and Endodontology, Ghent University, Ghent University Hospital, Dental School, Gent, Belgium.Department of Dental Materials, University of Antwerp, Campus RUCA, Antwerpen, Belgium.Aim.To gather information on root-canal treatment carried out by dentists working in Flanders (Belgium). Methodology A questionnaire reported in a previous study was also used to gather information on canal medicaments, canal filling, and in decision making for referrals and treatment of apical periodontitis. Conclusions.The results of this study indicate that techniques and methods used for canal medication and canal filling were acceptable for the majority of the respondents. Re-treatment was underestimated as a treatment option.

Root canal treatment performed by Flemish dentists. Part 1. Cleaning and shaping

muveqqeti@gmail.com (JofER editor) — Thu, 29 Jan 2009 00:00:00 -0600

G. M. G. Hommez, M. Braem & R. J. G. De MoorDepartment of Operative Dentistry and Endodontology, Ghent University, Ghent University Hospital, Dental School, Gent, Belgium.Department of Dental Materials, University of Antwerp, Campus RUCA, Antwerpen, Belgium.Aim.To gather information on root canal treatment carried out by dentists working in Flanders (Belgium). Conclusions.The results of this study indicate that the theoretical knowledge of dentists working in Flanders is good. However, the use of rubber dam remained low, half believed their preparation technique could be improved.

Influence of operator experience on canal preparation time when using the rotary Ni-Ti ProFile system in simulated curved canals

muveqqeti@gmail.com (JofER editor) — Wed, 28 Jan 2009 00:00:00 -0600

C. Mesgouez, F. Rilliard, L. Matossian, K. Nassiri & E. Mandel Endodontic Department, School of Dentistry, University Paris 7, Paris, France.Aim.The aim of this study was to determine the influence of operator experience on the time needed for canal preparation when using a rotary nickel-titanium (Ni-Ti) system. Conclusion.Time required for canal preparation was inversely related to operator experience.

Endodontic and orthodontic treatment of a cross-bite fused maxillary lateral incisor

muveqqeti@gmail.com (JofER editor) — Sun, 25 Jan 2009 00:00:00 -0600

T. Tsurumachi & T. KunoDepartments of Endodontics, Division of Advanced Dental Treatment, and Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan.Aim.To describe combined endodontic and orthodontic treatment of a maxillary lateral incisor fused with a supernumerary. Key learning points.Fusion has been described as a development anomaly characterized by the union of two adjacent teeth. Proper combined endodontic and orthodontic treatment resulted in maintaining one tooth half and solving the aesthetic and functional problem of a fused tooth.