Calcium ions released from mineral trioxide aggregate convert the differentiation pathway of C2C12 cells into osteoblast lineage.

abstract：INTRODUCTION:The authors conducted a prospective, randomized, single-blind study to determine the degree of pulpal anesthesia obtained with a primary infiltration of 1 cartridge of articaine in the incisive/mental nerve region of the mandibular second premolar and to determine the anesthetic efficacy of a repeat artica...

journal_title：Journal of endodontics

authors： Dressman AS,Nusstein J,Drum M,Reader A

更新日期：2013-03-01 00:00:00

abstract：:In vitro root surface temperatures produced during post space preparation were measured. The preparations were made using a GPX bur with rotational speeds of 6,500, 8,000, 9,500, 11,000, and 15,000 rpm. The overall mean temperature increase ranged from 0.66 degree to 4.81 degrees C and was greatest at 8,000 rpm. When ...

journal_title：Journal of endodontics

authors： Weller RN,Kimbrough WF,Anderson RW

更新日期：1996-06-01 00:00:00

abstract：INTRODUCTION:Growth and differentiation factor-5 (GDF-5) is a multifunctional protein that regulates the development and repair in many tissues. The purpose of this study was to investigate whether GDF-5 may influence the proliferation, differentiation, and collagen turnover of human dental pulp cells. METHODS:Human d...

journal_title：Journal of endodontics

authors： Chang MC,Lin LD,Tseng HC,Chang BE,Chan CP,Lee SY,Chang HH,Lin PS,Tseng SK,Jeng JH

更新日期：2013-10-01 00:00:00

abstract：:The difference in resistance to bacterial invasion into the dentinal tubules between vital and nonvital teeth has not been determined. This study was conducted to clarify the effect of vital pulp on bacterial invasion into the dentinal tubules. The specimens were 19 intact pairs of bilateral upper third molars of 19 h...

journal_title：Journal of endodontics

authors： Nagaoka S,Miyazaki Y,Liu HJ,Iwamoto Y,Kitano M,Kawagoe M

更新日期：1995-02-01 00:00:00

abstract：:Amalgam, IRM, and a mineral trioxide aggregate were tested for repair of experimentally created root perforations. Fifty sound, extracted mandibular and maxillary molars were used in this study. A perforation was created on the mesial root surface at about a 45-degree angle to the long axis of each tooth. The tooth wa...

journal_title：Journal of endodontics

authors： Lee SJ,Monsef M,Torabinejad M

更新日期：1993-11-01 00:00:00

abstract：INTRODUCTION:The inferior alveolar nerve (IAN) block does not always result in successful pulpal anesthesia. Anesthetic success rates might be affected by increased anxiety. Nitrous oxide has been shown to have both anxiolytic and analgesic properties. Therefore, the purpose of this prospective, randomized, double-blin...

journal_title：Journal of endodontics

authors： Stanley W,Drum M,Nusstein J,Reader A,Beck M

更新日期：2012-05-01 00:00:00

abstract：:This study compared the microshear bond strength of three resin-based sealers to root dentin and assessed whether sealer cements behave differently in thin and thick films. Extracted maxillary premolars were sectioned buccolingually, and 45 root halves were randomly allocated for microshear bond testing with the three...

journal_title：Journal of endodontics

authors： Rahimi M,Jainaen A,Parashos P,Messer HH

更新日期：2009-01-01 00:00:00

abstract：:This in vitro study compared the accuracy of file length measurements made on calibrated and uncalibrated direct digital images. Endodontic files of known lengths and ISO sizes were used in 10 single-rooted, relatively straight teeth within cadaver specimens. The crowns of the teeth were ground flat and an orthodontic...

journal_title：Journal of endodontics

authors： Loushine RJ,Weller RN,Kimbrough WF,Potter BJ

更新日期：2001-12-01 00:00:00

abstract：:The purpose of this study was to examine the effect of the smear layer on apical microleakage over 16 wk. One hundred and four extracted human teeth were assigned to four groups treated as follows: group A1--smear layer was left intact and canals were obturated with gutta-percha and Roth 811; group A2--smear layer was...

journal_title：Journal of endodontics

authors： Economides N,Liolios E,Kolokuris I,Beltes P

更新日期：1999-02-01 00:00:00

abstract：:Biofilm mode of growth is a strategy in microorganisms to survive harsh growth conditions. Although previous studies have established the ability of Enterococcus faecalis to survive postendodontic environmental conditions, the effect of such conditions on the ultrastructural and physiochemical features of E. faecalis ...

journal_title：Journal of endodontics

authors： George S,Kishen A,Song KP

更新日期：2005-12-01 00:00:00

abstract：:Type IV matrix metalloproteinases (MMPs) are members of the family of MMPs and are thought to play an important role in degradation of extracellular components. Human pulp cells can secrete and produce these enzymes. Recent evidence shows that MMPs may play a role in pulpal inflammation. To date little is known regard...

journal_title：Journal of endodontics

authors： Chang YC,Yang SF,Hsieh YS

更新日期：2001-11-01 00:00:00

abstract：:The purpose of this study was to compare ultrasonic and high-speed-bur root-end preparations. Seventy-six roots from 29 bilaterally matched pairs of human teeth in cadavers were used in this study. In group 1 ultrasonic preparations were made in 38 roots and filled with amalgam. In group 2 high-speed bur preparations ...

journal_title：Journal of endodontics

authors： Mehlhaff DS,Marshall JG,Baumgartner JC

更新日期：1997-07-01 00:00:00

abstract：:The purpose of this in vitro study was to investigate the canal configuration types, and the prevalence and location of anatomical variations in the mesiobuccal (MB) and mesial roots of permanent maxillary and mandibular first molars after instrumentation. The number and the type of canals were determined before instr...

journal_title：Journal of endodontics

authors： Jung IY,Seo MA,Fouad AF,Spångberg LS,Lee SJ,Kim HJ,Kum KY

更新日期：2005-05-01 00:00:00

abstract：:Twenty volunteers with first molars free of restorations and caries were recruited. One molar from each arch was selected, and rubber dam was applied. Seven sites on each crown were electric pulp tested 4 times with an Elements Diagnostic Unit, and lowest threshold responses were recorded. Data were analyzed with one-...

journal_title：Journal of endodontics

authors： Lin J,Chandler N,Purton D,Monteith B

更新日期：2007-11-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to examine the size, volume, and other parameters of preoperative periapical lesions measured from cone-beam computed tomographic (CBCT) images as potential prognostic factors in endodontic microsurgery. METHODS:A clinical database was searched for patients who had received e...

journal_title：Journal of endodontics

authors： Kim D,Ku H,Nam T,Yoon TC,Lee CY,Kim E

更新日期：2016-08-01 00:00:00

abstract：:This study highlighted the characteristics and distribution of cracked tooth syndrome (CTS) and the associated factors in adult attendees in the University of Nigeria Teaching Hospital. Three hundred seventy patients aged 18 years to 77 years with CTS-like conditions were included and studied over 12 months. The follo...

journal_title：Journal of endodontics

authors： Udoye CI,Jafarzadeh H

更新日期：2009-03-01 00:00:00

abstract：:Characteristics of cyclooxygenase-2 (COX-2) expressing cells in human dental pulp were immunohistologically studied. Extirpated pulpal tissues from extracted teeth were examined to elucidate the localization and distribution of COX-2. Pulpal tissues were examined by the labeled streptavidin biotin method using specifi...

journal_title：Journal of endodontics

authors： Nakanishi T,Shimizu H,Hosokawa Y,Matsuo T

更新日期：2001-06-01 00:00:00

abstract：:The purpose of this study was to compare clinical, radiographic, and histopathologic effects of Nd:YAG laser pulpotomy to formocresol pulpotomy on human primary teeth. Patients with at least two vital primary molar teeth that required pulpotomy, because of pulpal exposure to caries, were selected for this study. After...

journal_title：Journal of endodontics

authors： Odabaş ME,Bodur H,Bariş E,Demir C

更新日期：2007-04-01 00:00:00

abstract：INTRODUCTION:The aim of this study was to determine the variations in root canal length (RCL) occurring during endodontic treatment stages (initial, preflared, and concluded) and correlate them with the accuracy of Root ZX II (RZX). METHODS:After coronal access, 26 mandibular molars had the apical foramen of the 52 me...

journal_title：Journal of endodontics

authors： Vasconcelos BC,Bastos LM,Oliveira AS,Bernardes RA,Duarte MA,Vivacqua-Gomes N,Vivan RR

更新日期：2016-11-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to compare the ability of MTA (Dentsply Maillefer, Tulsa, OK) and EndoSequence Root Repair Material (ESRRM; Brasseler USA, Savannah, GA) to set in the presence of human blood and minimal essential media. METHODS:A model was created using polymethyl methacrylate blocks each pr...

journal_title：Journal of endodontics

authors： Charland T,Hartwell GR,Hirschberg C,Patel R

更新日期：2013-08-01 00:00:00

abstract：:The purpose of this study was to evaluate the durability of insulated probes designed to be used with the Endocater Apex Locator when put through multiple cleaning and autoclaving cycles. The manufacturer has reported that the plastic coating on the probes is reliable with normal use and sterilizable up to a maximum o...

journal_title：Journal of endodontics

authors： Himel VT,Schott RN

更新日期：1993-08-01 00:00:00

abstract：INTRODUCTION:This case report describes the effect of unintentionally extruded mineral trioxide aggregate (MTA) into periradicular lesions and tissues on the prognosis of periradicular healing in maxillary left central incisor with periradicular lesion. METHODS:A 17-year-old girl with a large periradicular lesion from...

journal_title：Journal of endodontics

authors： Tahan E,Celik D,Er K,Taşdemir T

更新日期：2010-04-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to visualize the stresses and strain distribution patterns in ProTaper Universal F2 files (Dentsply Maillefer, Ballaigues, Switzerland) and to establish the stress- and strain-curvature relationship for this instrument under various conditions by using a dynamic, three-dimensi...

journal_title：Journal of endodontics

authors： Gao Y,Cheung GS,Shen Y,Zhou X

更新日期：2011-10-01 00:00:00

abstract：INTRODUCTION:This systematic review and meta-analysis investigated evidence to support whether apical periodontitis (AP) can modify the systemic levels of inflammatory markers (IM) in humans. METHODS:The MEDLINE, Embase, Cochrane, and PubMed databases were searched between 1948 and 2012, with no language restriction. ...

journal_title：Journal of endodontics

authors： Gomes MS,Blattner TC,Sant'Ana Filho M,Grecca FS,Hugo FN,Fouad AF,Reynolds MA

更新日期：2013-10-01 00:00:00

abstract：INTRODUCTION:The presence of cracks and fractures in teeth can pose difficulties in diagnosis, prognosis assessment, and treatment recommendations. When a tooth has no significant restorations or caries, whereby the pulp is nonvital in the absence of a luxation injury, it is suggested that this necrosis is likely cause...

journal_title：Journal of endodontics

authors： Berman LH,Kuttler S

更新日期：2010-03-01 00:00:00

abstract：:The mesiobuccal roots of 50 randomly selected maxillary first molars were examined to assess the incidence and position of the canal isthmus. Transverse serial sections of the apical 6 mm of each root were prepared in 1-mm increments. The apical side of each section was stained with methylene blue dye, viewed with a s...

journal_title：Journal of endodontics

authors： Weller RN,Niemczyk SP,Kim S

更新日期：1995-07-01 00:00:00

abstract：:A long-standing lesion associated with an undetected perforation of the furca in a mandibular molar was successfully managed using a multidisciplinary treatment approach. The sequence of therapeutic procedures involved conventional endodontic retreatment, an initial orthograde sealing of the perforation, guided tissue...

journal_title：Journal of endodontics

authors： Goon WW,Lundergan WP

更新日期：1995-11-01 00:00:00

abstract：INTRODUCTION:Cross-sectional studies describe the health status of a population and measure the prevalence of disease or treatment. Neither the prevalence of periapical radiolucency, a surrogate for disease, nor the prevalence of root canal treatment have been subjected to a systematic review, which is the highest leve...

journal_title：Journal of endodontics

authors： Pak JG,Fayazi S,White SN

更新日期：2012-09-01 00:00:00

abstract：:This report presents a rare case of odontogenic cutaneous sinus tract caused by a vertical root fracture. The root-fractured molar was probably caused by an accidental blow by a cow 3 years ago. Despite all treatments by physicians and surgeons for nearly 1 year, the sinus tract recurred repeatedly. After diagnosis an...

journal_title：Journal of endodontics

authors： Chan CP,Chang SH,Huang CC,Wu SK,Huang SK

更新日期：1997-09-01 00:00:00

abstract：INTRODUCTION:This in vitro study compared cone-beam computed tomography (CBCT) exam with different voxel sizes with digital periapical radiography in the detection of vertical root fractures in teeth with and without intracanal metallic posts. METHODS:Eighteen single-rooted human teeth were endodontically treated, pre...

journal_title：Journal of endodontics

authors： Junqueira RB,Verner FS,Campos CN,Devito KL,do Carmo AM

更新日期：2013-12-01 00:00:00