Abstract：
INTRODUCTION:The morphogenic complexities of dens invaginatus (DI) Oehlers type 3 in maxillary canines offer significant endodontic challenges. METHODS:A case report is provided of a 14-year-old female patient who presented with an anomalous-looking permanent maxillary canine associated with a sinus tract. Pulp testing revealed a normal response on the distal aspect of the tooth, whereas the mesial segment tested nonresponsive. A radiolucent lesion was seen on the mesiolateral radicular area adjacent to the severely distended pulp chamber. A gutta-percha point inserted into the sinus tract traced to this same region. The diagnosis was normal pulp coincident with DI Oehlers type 3 with pulp necrosis and chronic apical abscess. RESULTS:Despite a concerted effort to limit the root canal therapy to only the necrotic canal, its proximity to the normal canal obviated this possibility, entailing endodontic treatment of the entire root canal system. The necrotic pulp space was subjected to sustained irrigation with 5.25% sodium hypochlorite and then completed with 17% ethylenediaminetetraacetic acid. A bolus of gutta-percha was used to create an apical barrier, and then the remainder of the enlarged pulp space was obturated with injectable thermoplasticized gutta-percha. At a 4.5-year recall, there was no clinical and radiographic evidence of infection. CONCLUSIONS:Endodontic success was accomplished with meticulous efforts of disinfection. Thermoplasticized gutta-percha can offer utility for obturation of anatomically complicated pulp spaces. The use of the dental operating microscope is an invaluable aid for discernment of the intricacies of teeth affected with DI type 3 variant and can enhance clinical outcomes.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Brooks JK,Ribera MJdoi
10.1016/j.joen.2014.06.008subject
Has Abstractpub_date
2014-10-01 00:00:00pages
1702-7issue
10eissn
0099-2399issn
1878-3554pii
S0099-2399(14)00565-2journal_volume
40pub_type
杂志文章abstract：INTRODUCTION:Previously, we have shown that stem cells from apical papilla (SCAPs) can be chemoattracted by stromal cell-derived factor-1α (SDF-1α). The purpose of this study was to investigate the intracellular signaling pathways involved in SDF-1α-mediated migration of SCAPs. METHODS:Chemotaxis assays were performed...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.04.014
更新日期：2016-07-01 00:00:00
abstract：:The aim of this study was to investigate the correlation between endodontic clinical signs and symptoms and the presence of Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia or their association by nested polymerase chain reaction assay. Microbial samples were taken from 50 cases with necrotic pu...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2007.05.017
更新日期：2007-09-01 00:00:00
abstract：INTRODUCTION:Anesthetic efficacy of inferior alveolar nerve block decreases in patients with irreversible pulpitis. It was hypothesized that premedication with nonsteroidal anti-inflammatory drugs might improve the success rates in patients with inflamed pulps. METHODS:Sixty-nine adult volunteers who were actively exp...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2009.11.010
更新日期：2010-03-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to assess 2 cone-beam computed tomographic systems on the detection of artificially induced vertical root fractures (VRFs) and artifact intensity using birooted teeth restored with different intracanal materials. METHODS:The sample consisted of 20 extracted birooted premolars. Ro...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.10.028
更新日期：2020-02-01 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
pub_type： 杂志文章
doi：10.1097/01.don.0000148867.30520.9e
更新日期：2005-06-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to verify the expression of the calcium-sensing receptor (CaSR) and its role in mineral trioxide aggregate (MTA)-induced odontoblastic differentiation and mineralization in human dental pulp cells (hDPCs). METHODS:The expression of CaSR in human dental pulp tissue and hDPCs w...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.03.019
更新日期：2019-07-01 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
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00004770-200401000-00012
更新日期：2004-01-01 00:00:00
abstract：INTRODUCTION:Mineral trioxide aggregate (MTA) has been used successfully for perforation repair, vital pulpotomies, and direct pulp capping. However, little is known about the interactions between MTA and glass ionomer cement (GIC) in final restorations. In this study, 2 null hypotheses were tested: (1) GIC placement t...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2012.04.013
更新日期：2012-08-01 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
pub_type： 杂志文章
doi：10.1016/j.joen.2005.09.011
更新日期：2006-04-01 00:00:00
abstract：INTRODUCTION:This study aimed to investigate the effects of 2 inorganic polyphosphates (poly[P]) are linear polymers of orthophosphate (Pi) residues linked by energy-rich phosphoanhydride poly(P) compounds, sodium triphosphate (STP, Na5P3O10) and sodium hexametaphosphate (SHMP, Na15P13O40 ∼ Na20P18O40) on the prolifera...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.01.038
更新日期：2015-06-01 00:00:00
abstract：:The cross-sectional configuration of seven files at coronal and apical levels were compared with diagrams presented by manufacturers. The presence of cutting edges was also examined. Ground-twisted (K-file, K-Reamer, and K-flex) and machined files (Flex-R, Unifile, S-file, and Hedstrom) were included in #10, #25, and ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81111-8
更新日期：1995-12-01 00:00:00
abstract：:Inflammatory myofibroblastic tumors (IMTs) are rare. IMTs of the head and neck occur in all age groups, from neonates to old age, with the highest incidence occurring in childhood and early adulthood. An IMT has been defined as a histologically distinctive lesion of uncertain behavior. This article describes an unusua...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.09.006
更新日期：2015-12-01 00:00:00
abstract：INTRODUCTION:The management of endodontic emergencies has been particularly challenging during the coronavirus disease 2019 (COVID-19) outbreak because of the possible generation of airborne particles and aerosols. The aim of this report was to contribute to the practice of endodontics by proposing a general protocol f...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2020.09.018
更新日期：2021-01-01 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
pub_type： 杂志文章
doi：10.1016/j.joen.2005.10.035
更新日期：2006-03-01 00:00:00
abstract：:Adsorption of some paraformaldehyde was noted in a previous study evaluating its sterilizing effect on gutta-percha (GP). This study examined histologically the effect of this adsorption when formaldehyde-exposed GP was implanted into the subcutaneous connective tissue of rats. GP implants were prepared in cylinder sh...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81372-5
更新日期：1992-02-01 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
pub_type： 杂志文章
doi：10.1016/j.joen.2005.10.007
更新日期：2006-01-01 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
pub_type： 杂志文章
doi：10.1097/00004770-200312000-00015
更新日期：2003-12-01 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
pub_type： 杂志文章
doi：10.1097/00004770-200301000-00013
更新日期：2003-01-01 00:00:00
abstract：INTRODUCTION:Apical periodontitis is an inflammation and destruction of periapical tissues. Matrix metalloproteinase-9 (MMP-9) is thought to be involved in periapical lesion formation and progression. The aim of this study was to evaluate the lesion progression in MMP-9 knockout (KO) mice compared with that in control ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.01.003
更新日期：2014-05-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to evaluate the influence of anorganic bovine bone as a grafted biomaterial on newly formed bone and cementum in periapical regions after surgical endodontic treatment in cats. METHODS:After inducing apical periodontitis in 9 cats, root canal and surgical endodontic treatment...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.10.002
更新日期：2012-02-01 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
pub_type： 杂志文章
doi：10.1016/j.joen.2005.10.037
更新日期：2006-03-01 00:00:00
abstract：INTRODUCTION:The aim was to present a novel surgical technique using virtually preplanned 3-dimensional (3D)-printed templates for guided osteotomies. These were to ensure atraumatic uncovering of a severely impacted donor tooth including guided drilling of the recipient alveolus followed by a secure autotransplantatio...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.07.024
更新日期：2020-07-29 00:00:00
abstract：:The antibacterial activity of three commercial 10% carbamide peroxide bleaching agents (Nite White, Karisma, and Opalescence) on Streptococcus mutans, Streptococcus mitis, Streptococcus sanguis, Lactobacillus casei, and Lactobacillus acidophilus was examined. Chlorhexidine (0.2%) was used as a positive control. Test m...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(96)80217-2
更新日期：1996-07-01 00:00:00
abstract：:The influence of different obturation techniques (lateral condensation, Obtura, and Thermafil) on root strains was assessed in 27 upper central incisors using strain gauges mounted on the coronal and apical one-thirds of the root surface. The vertical load applied with each obturation technique was also measured. Comp...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81008-3
更新日期：1995-06-01 00:00:00
abstract：INTRODUCTION:The study compared Twisted File (TF) with 3 traditionally manufactured systems to determine whether changes in the manufacturing process improved the cyclic fatigue resistance. METHODS:Four rotary file systems, (1) ProFile (PF), (2) Mtwo, (3) K3, and (4) TF, were tested in artificial canals with 45° and 9...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.12.034
更新日期：2012-04-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to investigate the effects of pretreatment of gel chlorhexidine and ethanol on the bond strength and durability of the adhesion of the fiber post relined with resin composite to the root dentin. METHODS:Sixty bovine incisor roots were divided into four groups: irrigation with phy...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.01.007
更新日期：2011-05-01 00:00:00
abstract：:Gutta-percha (GP) has been the most widely used root canal filling material because of its well-known low toxicity. The inertness of GP, however, was challenged recently. The purpose of this study was to evaluate the toxicity of marketed endodontic GP using the radiochromium release test. Fourteen commercially availab...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)81885-6
更新日期：1990-09-01 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
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80975-1
更新日期：1995-07-01 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
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00004770-200211000-00004
更新日期：2002-11-01 00:00:00
abstract：INTRODUCTION:The purpose of this in vivo study was to evaluate the accuracy of small-volume cone-beam computed tomographic (CBCT) imaging compared with conventional periapical radiography (CPR) in the diagnosis of vertical root fractures (VRFs) using exploratory surgery as the reference standard. METHODS:Eighty-two de...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.04.015
更新日期：2020-08-01 00:00:00
