abstract：:With all the potential for endodontic success, the fact remains clinicians are confronted with posttreatment endodontic disease. When the elected treatment plan is endodontic nonsurgical retreatment, then the goal is to access the pulp chamber and remove materials from the root canal space and if present, address defi...

journal_title：Journal of endodontics

authors： Ruddle CJ

更新日期：2004-12-01 00:00:00

abstract：:Polymerase chain reaction (PCR) followed by reverse dot blot was used to detect Enterococcus faecalis leakage through mineral trioxide aggregate (MTA) apical obturations of pulpless teeth with open apices. Prepared root canals of 34 extracted teeth were given a standard apical foramen opening and received orthograde a...

journal_title：Journal of endodontics

authors： de Leimburg ML,Angeretti A,Ceruti P,Lendini M,Pasqualini D,Berutti E

更新日期：2004-12-01 00:00:00

abstract：:The purpose of this study was to evaluate gray mineral trioxide aggregate (MTA), white MTA, and Fuji II LC cement as coronal barriers to bacterial leakage. Seventy-eight, matched, human teeth were obturated with gutta-percha. In group I, 18 pairs received a 3-mm barrier of gray or white MTA. In group II, 18 pairs rece...

journal_title：Journal of endodontics

authors： Tselnik M,Baumgartner JC,Marshall JG

更新日期：2004-11-01 00:00:00

abstract：:The authors reviewed the literature evaluating the antibacterial effectiveness of intracanal medicaments used in the management of apical periodontitis. A PICO (problem, intervention, comparison, outcome) strategy was developed to identify studies dealing with calcium hydroxide, phenolic derivatives, iodine-potassium ...

journal_title：Journal of endodontics

authors： Law A,Messer H

更新日期：2004-10-01 00:00:00

abstract：:Historically, pulp-necrotizing agents were commonly used in endodontic treatments. They act quickly and devitalize the pulp within a few days. However, they are cytotoxic to gingiva and bone. If such an agent diffuses out of the cavity, it can readily cause widespread necrosis of gingiva and bone, which can lead to os...

journal_title：Journal of endodontics

authors： Garip H,Salih IM,Sener BC,Göker K,Garip Y

更新日期：2004-10-01 00:00:00

abstract：:The purpose of this study was to compare the wicking propensity of multifilament sutures. Dexon II, Vicryl, and black silk suture (BSS) were dipped in saline or soaked for 48 h, then suspended on a microscope slide. Fluorescein isothiocyanate-dextran (FITC-D) was placed at the suture mid points, and its movement was o...

journal_title：Journal of endodontics

authors： Grigg TR,Liewehr FR,Patton WR,Buxton TB,McPherson JC

更新日期：2004-09-01 00:00:00

abstract：:The sealing properties of three temporary restorative materials, Cavit, IRM, and a polycarboxylate-based cement, Ultratemp Firm, were investigated in vitro. Standardized access cavities were prepared in 45, intact, extracted, human molars. The teeth were randomly assigned to three groups and the access openings filled...

journal_title：Journal of endodontics

authors： Zmener O,Banegas G,Pameijer CH

更新日期：2004-08-01 00:00:00

abstract：:Whole genome DNA-DNA hybridization has been used to identify bacteria in periradicular lesions partly because there is no amplification of the bacteria, therefore, minor contaminants are not detected. There are, however, potential pitfalls with this technique, including inability to distinguish dead bacteria, cross-re...

journal_title：Journal of endodontics

authors： Chan S,Mohammed N,Dobeck JM,White RR,Socransky SS,Skobe Z

更新日期：2004-07-01 00:00:00

abstract：:The purpose of this in vitro study was to compare the extrusion of thermoplacticized gutta-percha in teeth instrumented with Profile 0.06 or Profile GT, and obturated with Thermafil Plus and Thermafil GT, respectively. A total of 120, extracted, human maxillary central incisors were divided into four equal groups. Gro...

journal_title：Journal of endodontics

authors： Robinson MJ,McDonald NJ,Mullally PJ

更新日期：2004-06-01 00:00:00

abstract：:The 4- to 6-yr outcome of initial (first-time) endodontic treatment was assessed for Phase II of the "Toronto Study." In total, 442 teeth were treated by using flared preparation and vertical compaction of warm gutta-percha or step-back preparation and lateral compaction. With 126 teeth excluded (discontinuers: deceas...

journal_title：Journal of endodontics

authors： Farzaneh M,Abitbol S,Lawrence HP,Friedman S,Toronto Study.

更新日期：2004-05-01 00:00:00

abstract：:Propolis, a flavonoid-rich product of honey comb, exhibits antibacterial and anti-inflammatory properties. In this study, we examined the tolerance of fibroblasts of the periodontal ligament (PDL) and dental pulp to propolis and compared with that of calcium hydroxide in vitro. Cells from human dental pulp and PDL wer...

journal_title：Journal of endodontics

authors： Al-Shaher A,Wallace J,Agarwal S,Bretz W,Baugh D

更新日期：2004-05-01 00:00:00

abstract：:Calcium hydroxide is the "gold standard" endodontic medication, but it may fail to eliminate certain facultative bacteria and yeasts found in root canal systems. In this study, standardized bovine dentin blocks infected with Enterococcus faecalis were treated with an aqueous calcium hydroxide or bioactive glass S53P4 ...

journal_title：Journal of endodontics

authors： Zehnder M,Söderling E,Salonen J,Waltimo T

更新日期：2004-04-01 00:00:00

abstract：:The polymerase chain reaction (PCR) is an innovative nucleic acid-based assay that has the highest sensitivity of any microbiological technique for the detection of bacteria. The purpose of this study was to use PCR to detect the presence of specific species of bacteria in samples collected from two geographical locat...

journal_title：Journal of endodontics

authors： Baumgartner JC,Siqueira JF Jr,Xia T,Róças IN

更新日期：2004-03-01 00:00:00

abstract：:This case report describes the clinical, radiologic, and histopathologic features of the glandular odontogenic cyst (GOC). Although a relatively rare lesion not previously reported in the endodontic literature, the GOC is recommended for inclusion in a differential diagnosis of a dentoalveolar radiolucency. The GOC is...

journal_title：Journal of endodontics

authors： Tran PT,Cunningham CJ,Baughman RA

更新日期：2004-03-01 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：:Use of resin-based restorative materials recently has become widely accepted for treatment of endodontically treated teeth. However, some solutions routinely used during endodontic treatment procedures may have an effect on bond strengths of adhesive materials to root canal dentin. The purpose of this in vitro study w...

journal_title：Journal of endodontics

authors： Erdemir A,Ari H,Güngüneş H,Belli S

更新日期：2004-02-01 00:00:00

abstract：:Locating the number and position of orifices on pulp-chamber floors can be difficult. This is especially true when the tooth being treated is heavily restored, malposed, or calcified. After evaluating 500 pulp chambers of extracted teeth, new laws for finding pulp chambers and root-canal orifices are proposed. The use...

journal_title：Journal of endodontics

authors： Krasner P,Rankow HJ

更新日期：2004-01-01 00:00:00

abstract：:The purpose of this in vitro study was to evaluate the mineral contents of root-canal dentin before and after treatment with two commonly used gutta-percha solvents: chloroform and halothane. Twenty extracted human premolars, whose crowns and apical thirds had been removed, were used. Pulp tissues were removed and the...

journal_title：Journal of endodontics

authors： Erdemir A,Eldeniz AU,Belli S

更新日期：2004-01-01 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：:The extraoral sinus tract may occur as a result of an inflammatory process associated with a necrotic pulp. However, several non-odontogenic disorders may also produce an extraoral sinus tract. Thus, the differential diagnosis of this clinical finding is of paramount importance in providing appropriate clinical care b...

journal_title：Journal of endodontics

authors： Cohenca N,Karni S,Rotstein I

更新日期：2003-12-01 00:00:00

abstract：:A nested polymerase chain reaction (PCR)-based method was used to directly survey samples taken from primary endodontic infections for the occurrence of Pseudoramibacter alactolyticus. Identification by nested PCR was performed in root-canal samples from teeth associated with asymptomatic periradicular lesions or acut...

journal_title：Journal of endodontics

authors： Siqueira JF Jr,Rôças IN

更新日期：2003-11-01 00:00:00

abstract：:The treatment of an undeveloped (immature) tooth with a carious exposure has been reported extensively in the literature. The main objective of treatment is to provide vital pulp therapy to allow continued development of root dentin in the hope that the root will attain full maturity. A case report is presented that i...

journal_title：Journal of endodontics

authors： Weisleder R,Benitez CR

更新日期：2003-11-01 00:00:00

abstract：:There have been major recent reorganizations among bacterial taxa as a result of phylogenetic taxonomic approaches. As a consequence, old species have been renamed and novel species have been proposed. The introduction of molecular technology for microbial identification has also allowed the detection of microbial tax...

journal_title：Journal of endodontics

authors： Siqueira JF Jr

更新日期：2003-10-01 00:00:00

abstract：:In this study the sealing ability of a new urethane methacrylate resin-based sealer, EndoRez, was evaluated using a fluid-filtration model. Sixty-four single-rooted lower bicuspids were decoronated, instrumented, and divided into 3 groups of 20 each with 4 teeth used as controls. In group A, the roots were obturated w...

journal_title：Journal of endodontics

authors： Kardon BP,Kuttler S,Hardigan P,Dorn SO

更新日期：2003-10-01 00:00:00

abstract：:The purpose of this investigation was to compare the antimicrobial effect of MTAD (a mixture of a tetracycline isomer, an acid, and a detergent) with that of NaOCl with and without EDTA. Eighty-five extracted human teeth were contaminated with Enterococcus faecalis for 4 weeks. After biomechanical instrumentation usin...

journal_title：Journal of endodontics

authors： Shabahang S,Torabinejad M

更新日期：2003-09-01 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：:The purpose of this study was to evaluate the influence of Hero 642 rotary Ni-Ti instruments driven at 300, 400, or 600 rpm on root canal straightening, loss of working length, and instrument breakage. Sixty mesial root canals from extracted human mandibular molars were divided into 3 groups of 20 each and were instru...

journal_title：Journal of endodontics

authors： Karagöz-Küçükay I,Ersev H,Engin-Akkoca E,Küçükay S,Gürsoy T

更新日期：2003-07-01 00:00:00

abstract：:This study attempts to evaluate the oral manifestations of and the limited available dental pulp information on diabetes mellitus, a common metabolic disorder of carbohydrate and lipid metabolism affecting over 16 million Americans. Diabetics are particularly prone to bacterial or opportunistic infections. This vulner...

journal_title：Journal of endodontics

authors： Bender IB,Bender AB

更新日期：2003-06-01 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：:Taurodontism is a morphoanatomical change in the shape of a tooth, which usually occurs in multirooted teeth. An enlarged body and pulp chamber, as well as apical displacement of the pulpal floor, are characteristic features. Endodontic treatment of a taurodont tooth is challenging, because it requires special care in...

journal_title：Journal of endodontics

authors： Tsesis I,Shifman A,Kaufman AY

更新日期：2003-05-01 00:00:00

abstract：:Cyclooxygenase-2 (COX-2) is induced after the activation of cells by a variety of proinflammatory agents. Recently, evidence has shown that COX-2 may play a role in the pathogenesis of pulpal inflammation. However, little is known regarding the mechanism of pulpal inflammation at the site of bacterial infection. The p...

journal_title：Journal of endodontics

authors： Chang YC,Huang FM,Yang SF,Liu CM,Lai CC,Chan Y,Hsieh YS

更新日期：2003-04-01 00:00:00

abstract：:We immunohistologically examined the prevalence and localization of bacteria invading dentinal tubules of the roots of teeth with infected canals. Forty extracted teeth with apical lesions were selected and divided into two groups: a group of untreated teeth and a group of canal-enlarged teeth. The bacteria in the spe...

journal_title：Journal of endodontics

authors： Matsuo T,Shirakami T,Ozaki K,Nakanishi T,Yumoto H,Ebisu S

更新日期：2003-03-01 00:00:00

abstract：:Plasminogen activator converts plasminogen to plasmin, and plasmin activates the latent matrix metalloproteinases. Tissue plasminogen activator (t-PA) is one of the important proteolysis factors present in human inflamed tissues. However, few studies reported on the mechanisms of tissue destruction via a t-PA proteoly...

journal_title：Journal of endodontics

authors： Chang YC,Yang SF,Huang FM,Tai KW,Hsieh YS

更新日期：2003-02-01 00:00:00

abstract：:Little is known about the effect of aging on characteristic functions of pulp cells. When damaged pulp is recovered and mineralized tissue is formed to protect remaining pulp tissue, the general responses of pulp tissue after adequate stimuli (pulp cell proliferation and activation of alkaline phosphatase [ALPase]) ar...

journal_title：Journal of endodontics

authors： Shiba H,Nakanishi K,Rashid F,Mizuno N,Hino T,Ogawa T,Kurihara H

更新日期：2003-01-01 00:00:00

abstract：:Interleukin-10 receptor (IL-10R) expression in human, dental pulp, fibroblast cultures was investigated by using the reverse transcriptase-polymerase chain reaction (RT-PCR) technique. After exposure to lipopolysaccharide (LPS) from Prevotella intermedia, the IL-10R mRNA levels increased after 4 h, peaked at 7 h, and ...

journal_title：Journal of endodontics

authors： Tokuda M,Nagaoka S,Torii M

更新日期：2003-01-01 00:00:00

abstract：:The aim of this study was to evaluate the presence of bacterial biofilm on the external surface of the root apex in teeth with pulp necrosis, with and without radiographically visible periapical lesions, and in teeth with a vital pulp. Twenty-one teeth were extracted, eight with pulp necrosis and periapical lesions, e...

journal_title：Journal of endodontics

authors： Leonardo MR,Rossi MA,Silva LA,Ito IY,Bonifácio KC

更新日期：2002-12-01 00:00:00

abstract：:This in vitro study evaluated the microbial leakage of Cavit, IRM, and Dyract when used as temporary filling materials after root canal treatment. The degree of coronal leakage was assessed by using a microbiological marker consisting of Streptococcus faecalis and Candida albicans. For each of the two organisms, a set...

journal_title：Journal of endodontics

authors： Balto H

更新日期：2002-11-01 00:00:00

abstract：:This in vitro study evaluated the survival rate and fracture resistance of maxillary central incisors restored with different post and core systems. The post and core systems investigated were a prefabricated high precious metal post with cast core (group A), zirconia post with a prefabricated bonded ceramic core (gro...

journal_title：Journal of endodontics

authors： Pontius O,Nathanson D,Giordano R,Schilder H,Hutter JW

更新日期：2002-10-01 00:00:00

abstract：:A degree of uncertainty exists about the use of cotton pellets in the pulp chamber after canal obturation. The purpose of this study was to poll practicing endodontists and generalists regarding their preference. Forty-six endodontists and an equal number of general dentists were polled in a mail survey regarding thei...

journal_title：Journal of endodontics

authors： Dillard CR,Barfield RD,Tilashalski KR,Chavers LS,Eleazer PD

更新日期：2002-09-01 00:00:00

abstract：:The purpose of this study was to evaluate the efficacy of digital subtraction radiography using a direct digital imaging system in the follow-up study of endodontically treated teeth. The RVG-S was used as a direct digital imaging system. The intraimage variation of the original RVG-S image caused by dark current and ...

journal_title：Journal of endodontics

authors： Yoshioka T,Kobayashi C,Suda H,Sasaki T

更新日期：2002-08-01 00:00:00