abstract：:The purpose of this study was to compare the antimicrobial efficacy of 1.3% NaOCl/BioPure MTAD to 5.25% NaOCl/15% EDTA for root canal irrigation. Twenty-six bilaterally matched pairs of human teeth were collected. The teeth were incubated with Enterococcus faecalis for 4 weeks. The teeth were divided into two experime...

journal_title：Journal of endodontics

authors： Johal S,Baumgartner JC,Marshall JG

更新日期：2007-01-01 00:00:00

abstract：:A descriptive, cross sectional survey was developed to determine the preferences of endodontists when prescribing analgesics. Eleven clinical scenarios describing common endodontic diagnoses or procedures with specified severity of pain were provided. A survey was sent to 310 AAE members and 63 responded, providing a ...

journal_title：Journal of endodontics

authors： Mickel AK,Wright AP,Chogle S,Jones JJ,Kantorovich I,Curd F

更新日期：2006-12-01 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：:There are no quantitative data on the mechanical efficacy of irrigation in the removal of bacteria from curved canals. This study quantitatively analyzed the effects of root canal curvature and preparation size on the mechanical efficacy of irrigation using 33 mandibular single-rooted bicuspids allocated to groups acc...

journal_title：Journal of endodontics

authors： Nguy D,Sedgley C

更新日期：2006-11-01 00:00:00

abstract：:Interactions between Enterococcus faecalis and other species found in root canal infections might be important for the development and persistence of periapical disease. The aim of this study was to investigate the coaggregation interactions between E. faecalis clinical isolates and species previously shown to survive...

journal_title：Journal of endodontics

authors： Johnson EM,Flannagan SE,Sedgley CM

更新日期：2006-10-01 00:00:00

abstract：:The objective of this study was to evaluate the cytotoxicity of three endodontic sealers (AH Plus/Maillefer-Dentsply, Epiphany/Pentron, GuttaFlow, Coltene-Whaledent). Materials were mixed according to the manufacturer instructions and packed into Teflon molds (10 x 1 mm). For cytotoxicity testing (MTT method), the spe...

journal_title：Journal of endodontics

authors： Bouillaguet S,Wataha JC,Tay FR,Brackett MG,Lockwood PE

更新日期：2006-10-01 00:00:00

abstract：:Infection control guidelines recommend disinfection of extracted teeth in 10% formalin for 2 weeks before use. Although extracted teeth are routinely used for in vitro endodontic research, the potential influence of formalin has not been evaluated. The purpose of this study was to investigate the effect of formalin st...

journal_title：Journal of endodontics

authors： George SW,Pichardo MR,Bergeron BE,Jeansonne BG

更新日期：2006-09-01 00:00:00

abstract：:This case-control study sought to identify variables predictive of subsequent root canal therapy (RCT) in teeth receiving full coverage restorations. The University of North Carolina School of Dentistry's computerized treatment database was used to identify all patients receiving a single-unit crown on a nonendodontic...

journal_title：Journal of endodontics

authors： Kirakozova A,Caplan DJ

更新日期：2006-08-01 00:00:00

abstract：:This study tested the hypothesis that the seal of EndoREZ may be improved with an adhesive-modified technique. Instrumented single-rooted teeth were filled with: (a) Warm vertical compaction with AH Plus (control); (b). EndoREZ with master cones and passive application of accessory cones; (c) Application of Clearfil L...

journal_title：Journal of endodontics

authors： Gillespie WT,Loushine RJ,Weller RN,Mazzoni A,Doyle MD,Waller JL,Pashley DH,Tay FR

更新日期：2006-08-01 00:00:00

abstract：:The denaturation temperature (T(d)) of dentin collagen in mineralized versus demineralized teeth was examined as a function of dentin age and the extent of dehydration. Using differential scanning calorimetry, T(d) of mineralized dentin was shown to be between 160 degrees C to 186 degrees C, depending on whether it wa...

journal_title：Journal of endodontics

authors： Armstrong SR,Jessop JL,Winn E,Tay FR,Pashley DH

更新日期：2006-07-01 00:00:00

abstract：:This study compared the weight and radiographic appearance of Ca(OH)(2) delivered into standardized, minimally and fully prepared canals using (a) an injection system, (b) an endodontic Flex-O file rotated counter-clockwise, (c) a lentulo spiral, and (d) a .04 rotary NiTi file rotated in reverse. Two extracted human s...

journal_title：Journal of endodontics

authors： Simcock RM,Hicks ML

更新日期：2006-07-01 00:00:00

abstract：:In this study, we examined the effects of TNF-alpha on Bone morphogenetic protein (BMP-2), Smads (which play intracellular signaling of BMPs) expression and alkaline phosphatase (ALP) activity of human dental pulp (HDP) cells to clarify the mechanism of tertiary dentin formation. The quantity of RT-PCR product for BMP...

journal_title：Journal of endodontics

authors： Okabe T,Matsushima K

更新日期：2006-06-01 00:00:00

abstract：:The aim of this study was to evaluate and compare the quantitative and qualitative inflammatory responses and bone formation potential after implantation of polyethylene tubes filled with a new calcium hydroxide containing sealer (MBPc) and ProRoot mineral trioxide aggregate (MTA). There were 48 Wistar rats divided in...

journal_title：Journal of endodontics

authors： Cintra LT,de Moraes IG,Estrada BP,Gomes-Filho JE,Bramante CM,Garcia RB,Bernardinelli N

更新日期：2006-06-01 00:00:00

abstract：:Simulated furcation perforations were repaired with and without blood contamination utilizing tooth-colored mineral trioxide aggregrate (MTA) mixed with either MTA liquid (sterile water), lidocaine, or saline. Samples underwent Instron testing at either 24 or 72 hours and at 7 days. Data were analyzed using a 3-way AN...

journal_title：Journal of endodontics

authors： Vanderweele RA,Schwartz SA,Beeson TJ

更新日期：2006-05-01 00:00:00

abstract：:The purpose of this study was to evaluate the ultramorphological and chemical changes in Er,Cr:YSGG laser-treated radicular dentin in comparison with two different irrigation regimes. Extracted human premolars were assigned into three experimental groups. Group 1: After each file size, root canals were irrigated with ...

journal_title：Journal of endodontics

authors： Altundasar E,Ozçelik B,Cehreli ZC,Matsumoto K

更新日期：2006-05-01 00:00:00

abstract：:The aim of this study was to determine the location of the root canal curvature and measure the distance from the CEJ to the first curvature using in vitro methods. Extracted maxillary premolars (n = 358) were fixed and digitally radiographed using the parallel technique. Excluded from further analysis were teeth with...

journal_title：Journal of endodontics

authors： Willershausen B,Tekyatan H,Kasaj A,Marroquín BB

更新日期：2006-04-01 00:00:00

abstract：:The purpose of this study was to compare the reinforcement and strengthening ability of Resilon, gutta-percha, and a self-curing composite resin (Bisfil 2B) in endodontically treated roots of immature teeth. Sixty single rooted teeth were divided into five groups of 12 teeth each. Teeth in all groups except the negati...

journal_title：Journal of endodontics

authors： Stuart CH,Schwartz SA,Beeson TJ

更新日期：2006-04-01 00:00:00

abstract：:Reports on the prevalence of Enterococcus faecalis in root canals vary considerably, potentially because of variations in clinical sampling and sample analysis methods. This study compared culture and real-time quantitative polymerase chain reaction (qPCR) to detect and quantify E. faecalis in the same root canal samp...

journal_title：Journal of endodontics

authors： Sedgley C,Nagel A,Dahlén G,Reit C,Molander A

更新日期：2006-03-01 00:00:00

abstract：:The structure of mechanically instrumented intraradicular dentin after irrigation with NaOCl as the initial rinse and BioPure MTAD as the final rinse were examined from the coronal, middle, and apical parts of root canal walls using transmission electron microscopy. Sterile distilled water and EDTA as final rinses wer...

journal_title：Journal of endodontics

authors： Tay FR,Pashley DH,Loushine RJ,Doyle MD,Gillespie WT,Weller RN,King NM

更新日期：2006-03-01 00:00:00

abstract：:The aim of this study was to evaluate the time required by four different root canal medications coupled with the temporary filling material Cavit (ESPE, Seefeld, Germany) to prevent penetration of bacteria into the root canal. There were 145 roots prepared in a standardized manner. Four groups with 15 samples each we...

journal_title：Journal of endodontics

authors： Barthel CR,Zaritzki FF,Raab WH,Zimmer S

更新日期：2006-02-01 00:00:00

abstract：:The aim of this study was to investigate the prevalence and configuration of the C-shaped canal using serial axial computed tomography images of the mandibular second molars that had not been restored severely or treated endodontically, and to compare the thickness of the remaining tooth structure from the center of t...

journal_title：Journal of endodontics

authors： Jin GC,Lee SJ,Roh BD

更新日期：2006-01-01 00:00:00

abstract：:The cyclic fatigue resistance of three types of nickel-titanium rotary files was compared in a model using reciprocating axial movement. The influence of file size and taper was also investigated and fracture patterns were examined under SEM. The 10 experimental groups consisted of ProFiles, K3s, and RaCe files, size ...

journal_title：Journal of endodontics

authors： Yao JH,Schwartz SA,Beeson TJ

更新日期：2006-01-01 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：:This study aimed to investigate periapical exudate neutrophil elastase (NE) and prostaglandin E2 (PGE2) levels and their relationships with clinical symptoms, and to determine the changes of their levels following first treatment visit. Periapical exudate samples were collected from the canals of 34 nonvital single-ro...

journal_title：Journal of endodontics

authors： Alptekin NO,Ari H,Haliloglu S,Alptekin T,Serpek B,Ataoglu T

更新日期：2005-11-01 00:00:00

abstract：:Bisphosphonates are commonly used in medicine to maintain bone density in patients with certain nonneoplastic diseases or cancers. A serious adverse effect of bisphosphonates that has substantial dental significance is osteonecrosis that appears to uniquely affect the mandible and maxilla without occurring in other bo...

journal_title：Journal of endodontics

authors： Katz H

更新日期：2005-11-01 00:00:00

abstract：:The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then c...

journal_title：Journal of endodontics

authors： Huang HM,Ou KL,Wang WN,Chiu WT,Lin CT,Lee SY

更新日期：2005-10-01 00:00:00

abstract：:The inferior alveolar nerve is sometimes affected by periapical pathoses and mandibular cysts. However, mandibular intraosseous lesions have not been reported to disturb the lingual nerve. A case of simultaneous paresthesia of the right lingual nerve and the right inferior alveolar nerve is presented. The possible mec...

journal_title：Journal of endodontics

authors： Hamada Y,Yamada H,Hamada A,Kondoh T,Suzuki M,Noguchi K,Ito K,Seto K

更新日期：2005-10-01 00:00:00

abstract：:The expression of the vanilloid receptor subtype 1 (VR1, TRPV1) was detected in human dental pulp fibroblasts (PF-10) using RT-PCR, Western blotting, and immunocytochemical analysis. As revealed by ELISA, capsaicin induced IL-6 expression in PF-10 cells, and the VR1 antagonist capsazepine dose-dependently inhibited ca...

journal_title：Journal of endodontics

authors： Miyamoto R,Tokuda M,Sakuta T,Nagaoka S,Torii M

更新日期：2005-09-01 00:00:00

abstract：:In the present study, we used Fos expression as an index of nociceptive input to the spinal trigeminal nucleus after exposure of the coronal pulp tissue of maxillary right first molars and examined the effects of pretreatment with an opioid, a nonsteroidal anti-inflammatory drug or a local anesthetic before pulp expos...

journal_title：Journal of endodontics

authors： Locher-Claus MT,Erickson TE,Law AS,Johnson WT,Gebhart GF

更新日期：2005-08-01 00:00:00

abstract：:The effectiveness of endodontic antimicrobial treatment could be determined using sensitive molecular methods. The purpose of this study was to determine if antibiotics or endodontic reagents interfere with the ability of PCR to detect Enterococcus faecalis in vitro. Amoxicillin (25 mg/ml), clindamycin (15 mg/ml), tet...

journal_title：Journal of endodontics

authors： Fouad AF,Barry J

更新日期：2005-07-01 00:00:00

abstract：:This study was aimed at comparing the cultivable microorganisms in canals with periapical radiolucencies with exposed and unexposed pulp space. Microbiological samples were taken and analyzed from 45 canals with exposed pulp space, and 43 canals with unexposed pulp space. The canal contents were analyzed by aerobic/an...

journal_title：Journal of endodontics

authors： Chu FC,Tsang CS,Chow TW,Samaranayake LP

更新日期：2005-06-01 00:00:00

abstract：:The purpose of this study was to compare torque force and rotation needed to fracture three types of nickel titanium alloy rotary instruments in a simulated curved root canal space that were bound at the file tip. Files of similar size tips were studied. The files studied were ProFiles with 0.04 taper diameters of 15,...

journal_title：Journal of endodontics

authors： Guilford WL,Lemons JE,Eleazer PD

更新日期：2005-06-01 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：:An examination of 5616 endodontically treated and retreated maxillary first and second molars was made in an attempt to determine the percentage of MB2 canals that could be located routinely, and evaluate if there were any significant differences between initial treatments and retreatments. The teeth examined were 357...

journal_title：Journal of endodontics

authors： Wolcott J,Ishley D,Kennedy W,Johnson S,Minnich S,Meyers J

更新日期：2005-04-01 00:00:00

abstract：:The purpose of this study was to compare Schick CDR and Trophy RVGui direct digital radiography (DDR) systems for the ability to detect periapical lesions in human cadaver mandibles. Digital radiographs were exposed of teeth with normal periapical areas and of teeth with artificially prepared periapical lesions using ...

journal_title：Journal of endodontics

authors： Folk RB,Thorpe JR,McClanahan SB,Johnson JD,Strother JM

更新日期：2005-04-01 00:00:00

abstract：:The complexity of restorative dentistry has increased greatly in recent years, with the myriad of products used in "adhesive dentistry." So too has the "simple" matter of restoring access cavities after completion of endodontic treatment. This review discusses current methods of "bonding" to tooth structure, ceramic m...

journal_title：Journal of endodontics

authors： Schwartz RS,Fransman R

更新日期：2005-03-01 00:00:00

abstract：:The aim of this study was to investigate the response of human pulp tissue to a dentin bonding agent, Scotchbond Multi-Purpose Plus (SMPP), in exposed class V cavities. Sixteen human premolar teeth were mechanically exposed. Ten pulps were capped with SMPP and six teeth were capped with Dycal. The cavities were filled...

journal_title：Journal of endodontics

authors： Sübay RK,Demirci M

更新日期：2005-03-01 00:00:00

abstract：:The purpose of this study was to evaluate the effect of citric acid and EDTA solutions on the microhardness and the roughness of human root canal dentin. Forty-five human teeth sectioned longitudinally were used. Specimens were randomly divided into three groups of 30 teeth each and were treated as follows: (a) one mo...

journal_title：Journal of endodontics

authors： Eldeniz AU,Erdemir A,Belli S

更新日期：2005-02-01 00:00:00

abstract：:The purpose of this investigation was twofold: (1) to search for clinical articles pertaining to success and failure of periapical surgery and (2) to assign levels of evidence to these studies except case reports. Electronic and manual searches were conducted to identify all the literature regarding success and failur...

journal_title：Journal of endodontics

authors： Mead C,Javidan-Nejad S,Mego ME,Nash B,Torabinejad M

更新日期：2005-01-01 00:00:00

abstract：:Pulpitis, external root resorption, and pain may be experienced during orthodontic movement. The use of nonsteroidal anti-inflammatory drugs (NSAIDs) has been suggested to control these changes. The purpose of this study was to observe pulp-dentinal reactions, root resorption, tooth pain, and tooth movement after the ...

journal_title：Journal of endodontics

authors： Villa PA,Oberti G,Moncada CA,Vasseur O,Jaramillo A,Tobón D,Agudelo JA

更新日期：2005-01-01 00:00:00