Cytotoxic evaluation of root canal filling materials on primary human oral fibroblast cultures and a permanent hamster cell line.

abstract：:The cytotoxicity against two mesenchymal cell lines, L-929 and WI-38, and two epithelial cell lines, KB and HeLa S-3, of lipopolysaccharide (LPS) purified from strains of Bacteroides gingivalis, Fusobacterium nucleatum, and Veillonella parvula isolated from infected root canals was investigated. The inhibition of cell...

journal_title：Journal of endodontics

authors： Horiba N,Maekawa Y,Abe Y,Ito M,Matsumoto T,Nakamura H,Ozeki M

更新日期：1989-11-01 00:00:00

abstract：INTRODUCTION:The aim of this study was to determine the prevalence and characteristics of postoperative pain after endodontic microsurgery and to identify potential predictors for severe pain. METHODS:One hundred seventy-three patients who underwent endodontic microsurgery at a private practice were included in the st...

journal_title：Journal of endodontics

authors： Malagise CJ,Khalighinejad N,Patel YT,Jalali P,He J

更新日期：2020-12-23 00:00:00

abstract：INTRODUCTION:This study used micro-computed tomographic imaging to compare the shaping ability of Mtwo (VDW, Munich, Germany), a conventional nickel-titanium file system, and Reciproc (VDW), a reciprocating file system morphologically similar to Mtwo. METHODS:Root canal shaping was performed on the mesiobuccal and dis...

journal_title：Journal of endodontics

authors： Hwang YH,Bae KS,Baek SH,Kum KY,Lee W,Shon WJ,Chang SW

更新日期：2014-08-01 00:00:00

abstract：:It is known that many factors participate in the process of inflammation and pain transmission. Recently, various neuropeptides have been demonstrated in the intrapulpal nerve fibers immunobiohistochemically. These neuropeptides may play some role in the process of inflammation and transmission of pain sensation. In t...

journal_title：Journal of endodontics

authors： Wakisaka S

更新日期：1990-02-01 00:00:00

abstract：INTRODUCTION:This in vitro study compared 3 agitation and 2 irrigation devices to ultrasonic agitation at mechanically removing bacteria from a plastic simulated canal, instrumented to 35/.06. METHODS:The plastic blocks were divided into seven groups. The control (C) group with brain-heart infusion (BHI) broth (steril...

journal_title：Journal of endodontics

authors： Townsend C,Maki J

更新日期：2009-07-01 00:00:00

abstract：:One hundred single-rooted teeth were instrumented with Lightspeed, Profile .04 Taper Series 29, and NT McXIM instruments according to the recommendations of the manufacturers, and Flex-R files using the balanced force technique. Groups were comparable with respect to average curvature, canal length, and major and mino...

journal_title：Journal of endodontics

authors： Hinrichs RE,Walker WA 3rd,Schindler WG

更新日期：1998-02-01 00:00:00

abstract：INTRODUCTION:The aim of this study was to assess, by scanning electron microscopic (SEM) analysis, the ability of 17% EDTA and 7% maleic acid in the removal of the smear layer from the human root canal system. METHODS:Eighty single-rooted human anterior teeth were subjected to standardized root canal instrumentation (...

journal_title：Journal of endodontics

authors： Ballal NV,Kandian S,Mala K,Bhat KS,Acharya S

更新日期：2009-11-01 00:00:00

abstract：INTRODUCTION:Stabilizing sodium hypochlorite (NaOCl) at an alkaline pH is proposed to increase solution stability and tissue dissolution ability; however, a reduction on the flexural strength of dentin discs has been found to be a side effect. This study sought to determine whether a stabilized alkaline NaOCl reduces t...

journal_title：Journal of endodontics

authors： Souza EM,Calixto AM,Lima CN,Pappen FG,De-Deus G

更新日期：2014-10-01 00:00:00

abstract：:A polydimethylsiloxane-based sealer (GuttaFlow) was used for filling single-rooted teeth with four obturation techniques. Prefitted gutta-percha master-cones were employed in groups 1 to 3 with backfilling of the sealer. Apical third of the roots were first filled with GuttaFlow, and sealer-coated master cones were se...

journal_title：Journal of endodontics

authors： Brackett MG,Martin R,Sword J,Oxford C,Rueggeberg FA,Tay FR,Pashley DH

更新日期：2006-12-01 00:00:00

abstract：:The objective of this study was to compare the sealing ability of ActiV GP/glass ionomer (GI) sealer (Brasseler USA, Savannah, GA), Resilon/Epiphany (Pentron Clinical Technologies, Wallingford, CT), and gutta-percha (GP)/AH Plus (Dentsply Maillefer, Tulsa, OK). Seventy-three human single-rooted teeth were randomly div...

journal_title：Journal of endodontics

authors： Fransen JN,He J,Glickman GN,Rios A,Shulman JD,Honeyman A

更新日期：2008-06-01 00:00:00

abstract：:This article describes how to construct and use a simplified model to demonstrate the operation of electronic root canal measuring devices. The model is effective, more economical than those previously described, and uses readily available materials. ...

journal_title：Journal of endodontics

authors： Donnelly JC

更新日期：1993-11-01 00:00:00

abstract：INTRODUCTION:The purpose of the study was to evaluate the effects of intracanal, intraoral, and extraoral cryotherapy on postoperative pain in molar teeth with symptomatic apical periodontitis. METHODS:A total of 100 patients were randomly distributed into 4 groups: control (without cryotherapy application), intracana...

journal_title：Journal of endodontics

authors： Gundogdu EC,Arslan H

更新日期：2018-03-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to evaluate and compare the volume of removed dentin, transportation, and centering ability of ProTaper Next (PTN) system with and without glide path preparation by using cone-beam computed tomography (CBCT) imaging. METHODS:Sixty mesiobuccal canals of mandibular first molars...

journal_title：Journal of endodontics

authors： Elnaghy AM,Elsaka SE

更新日期：2014-12-01 00:00:00

abstract：:The purpose of this study was to determine the incidence of endodontic services provided to participants in a longitudinal cohort study. The "Florida Dental Care Study" was a prospective cohort study using a representative baseline sample of 873 dentate adults. An in-person interview and clinical dental exam were cond...

journal_title：Journal of endodontics

authors： Boykin MJ,Gilbert GH,Tilashalski KR,Shelton BJ

更新日期：2003-12-01 00:00:00

abstract：:Ultrasonic root-end preparation techniques have recently been introduced and revolutionized the field of endodontic surgery. The purpose of this study was to compare quantitatively the quality of root-end preparation techniques prepared by a specially designed ultrasonic retrotip with those prepared in a traditional m...

journal_title：Journal of endodontics

authors： Lin CP,Chou HG,Kuo JC,Lan WH

更新日期：1998-10-01 00:00:00

abstract：:Previous studies have indicated that vertical root fracture tends to occur in a buccolingual direction, where dentin thickness is greatest. Factors potentially influencing the location and direction of root fracture include root canal shape, external root morphology, and dentin thickness. In this finite-element study,...

journal_title：Journal of endodontics

authors： Lertchirakarn V,Palamara JE,Messer HH

更新日期：2003-08-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to examine the effect of mineral trioxide aggregate (MTA) on pluripotent-mesenchymal cell differentiation. METHODS:The pluripotent-mesenchymal cell line C2C12 was cultured in a 5% serum medium to induce cell differentiation with or without MTA. The differentiation to myoblast...

journal_title：Journal of endodontics

authors： Matsumoto S,Hayashi M,Suzuki Y,Suzuki N,Maeno M,Ogiso B

更新日期：2013-01-01 00:00:00

abstract：:This study investigated the sealing properties of cold laterally compacted gutta percha and Thermafil applied over different apically fractured rotary nickel-titanium files. Extracted human premolars were prepared by using ProTaper (Dentsply-Maillefer, Ballaigues, Switzerland) or ProFile (Dentsply-Maillefer) systems (...

journal_title：Journal of endodontics

authors： Altundasar E,Sahin C,Ozcelik B,Cehreli ZC

更新日期：2008-02-01 00:00:00

abstract：:One hundred randomly selected mandibular incisors were examined to assess the prevalence and location of two canals and to describe the canal anatomy that may be encountered during apical surgery. Sections of the root were cut at 1, 2, and 3 mm from the apex, simulating a 20-degree beveled surgical resection. The sect...

journal_title：Journal of endodontics

authors： Mauger MJ,Schindler WG,Walker WA 3rd

更新日期：1998-09-01 00:00:00

abstract：:The state of contamination by methicillin-resistant Staphylococci, including methicillin-resistant Staphylococcus aureus (MRSA) at the conservative dentistry section of the School of Dentistry, Aichi-Gakuin University, was investigated. Methicillin-resistant coagulase-negative Staphylococci (MRCNS) were detected in 8 ...

journal_title：Journal of endodontics

authors： Horiba N,Yoshida T,Suzuki K,Maekawa Y,Ito M,Matsumoto T,Nakamura H

更新日期：1995-01-01 00:00:00

abstract：:Silicone tubes filled with CRCS, a calcium hydroxide-based cement, were implanted at two different localizations in the right tibias of white male Wistar rats. A similar number of solid silicone rods were implanted in the left tibias of the same animals and were used as inert controls. Fifteen days after implantation ...

journal_title：Journal of endodontics

authors： Guglielmotti MB,Zmener O,Cabrini RL

更新日期：1989-01-01 00:00:00

abstract：:A palatogingival groove is an anatomic malformation that predisposes the involved tooth to a severe periodontal defect. When the condition is complicated by pulpal necrosis, affected teeth often present a dilemma in terms of diagnosis and treatment planning. In this report, we describe the case of a patient with a max...

journal_title：Journal of endodontics

authors： Garrido I,Abella F,Ordinola-Zapata R,Duran-Sindreu F,Roig M

更新日期：2016-02-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to compare the cell viability of dental pulp cells treated with Biodentine (Septodont, Saint-Maur, France) and mineral trioxide aggregate (MTA) and the in vitro and in vivo expression of mineralization markers induced by the 2 materials. METHODS:Human dental pulp cells isolat...

journal_title：Journal of endodontics

authors： Daltoé MO,Paula-Silva FW,Faccioli LH,Gatón-Hernández PM,De Rossi A,Bezerra Silva LA

更新日期：2016-04-01 00:00:00

abstract：:The aim of this study was to determine the relationship between histologic and radiologic signs of inflammation in human root-filled teeth. In addition, other factors with possible importance for apical inflammation were assessed. Fifty-three block sections of root-filled teeth were gathered from human cadavers. The b...

journal_title：Journal of endodontics

authors： Barthel CR,Zimmer S,Trope M

更新日期：2004-02-01 00:00:00

abstract：:Conventional and surgical endodontic management were performed on a two-rooted maxillary central incisor with a periapical lesion. Anatomical complexity of the tooth lead to perforation in the distal root during conventional treatment, thus a surgical approach was taken. A 4-month postoperative radiograph shows repair...

journal_title：Journal of endodontics

authors： González-Plata-R R,González-Plata-E W

更新日期：2003-06-01 00:00:00

abstract：:Enterococcus faecalis has been suggested to be an important etiological agent in endodontic failures. The purpose of this study was to evaluate the effectiveness of chlorhexidine- or antibiotics-based medications in eliminating E. faecalis biofilms. One-day and three-day biofilms of E. faecalis were induced on cellulo...

journal_title：Journal of endodontics

authors： Lima KC,Fava LR,Siqueira JF Jr

更新日期：2001-10-01 00:00:00

abstract：INTRODUCTION:Previous studies have suggested that masticatory forces are associated with cracked teeth, but it is not clear which specific poor oral masticatory habits may be more likely to cause cracks. The aim of this study was to quantitatively assess risk factors for cracked teeth among poor oral masticatory habits...

journal_title：Journal of endodontics

authors： Qiao F,Chen M,Hu X,Niu K,Zhang X,Li Y,Wu Z,Shen Z,Wu L

更新日期：2017-06-01 00:00:00

abstract：:The external cervical root resorption associated with intracoronal bleaching of pulpless teeth can be a devastating lesion. It often cannot be repaired. To prevent this problem, increasing attention has been focused on placing a barrier between the pulp chamber and the endodontic filling material. The objective of thi...

journal_title：Journal of endodontics

authors： Steiner DR,West JD

更新日期：1994-06-01 00:00:00

abstract：INTRODUCTION:This ex vivo study compared the disinfection and shaping abilities of 2 preparation protocols in C-shaped canals. METHODS:Mandibular second molars with type I C-shaped canals were pair matched based on micro-computed tomographic (micro-CT) analysis and distributed into 2 groups. The canals were contaminat...

journal_title：Journal of endodontics

authors： Gazzaneo I,Amoroso-Silva P,Pacheco-Yanes J,Alves FRF,Marceliano-Alves M,Olivares P,Meto A,Mdala I,Siqueira JF Jr,Rôças IN

更新日期：2020-11-18 00:00:00

abstract：:In this study, the effects of heparin on dentinal resorption was investigated in rats. Animals were injected with 2 x 2 IU/g Na-Heparin subcutaneously for 33 days. Histopathological examination of the anterior teeth revealed capillary proliferation, congestion, and fibrosis in the pulp in addition to resorptive lacuna...

journal_title：Journal of endodontics

authors： Kuraner T,Ozçelik B,Serper A,Mocan G,Mümin E,Eryilmaz M

更新日期：1999-10-01 00:00:00