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 pulp tissues in primary infections. DNA was extracted from the samples, which were analyzed for the presence of three endodontic pathogens by using species-specific primers. P gingivalis, T denticola, and T forsythia were detected in 46%, 38%, and 22% of the symptomatic cases, respectively. The bacterial complex composed by T forsythia, P gingivalis, and T denticola was found in 14% of the cases with spontaneous pain, tenderness to percussion, swelling, and pain on palpation. The high prevalence of P gingivalis, T denticola, and T forsythia in the samples examined suggests that these bacteria are related to the etiology of symptomatic periradicular diseases.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Gomes BP,Montagner F,Jacinto RC,Zaia AA,Ferraz CC,Souza-Filho FJdoi
10.1016/j.joen.2007.05.017subject
Has Abstractpub_date
2007-09-01 00:00:00pages
1049-52issue
9eissn
0099-2399issn
1878-3554pii
S0099-2399(07)00512-2journal_volume
33pub_type
杂志文章abstract:INTRODUCTION:Apical root resection is a biologically essential component in endodontic microsurgery. However, because it reduces the total root length and supported root surface, it changes the biomechanical response of the tooth. The purpose of this study was to analyze the biomechanical effect of apical root resectio...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2014.03.006
更新日期:2014-09-01 00:00:00
abstract:INTRODUCTION:The effect of rheumatoid arthritis (RA) on the healing and pathophyisiology of apical periodontitis is unknown because there is no study in the literature evaluating the association of RA with the prevalence of periapical rarefying osteitis (PAR) and endodontic treatment. Therefore, the goal of this cross-...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2017.02.015
更新日期:2017-07-01 00:00:00
abstract::This study assessed in vitro the diagnostic ability of cone beam computed tomography (CBCT) scans with different voxel resolutions in the detection of simulated external root resorption (ERR). For that purpose, 59 teeth were viewed through iCAT tomography (Imaging Sciences International, Inc, Hatfield, PA) following t...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2008.11.005
更新日期:2009-02-01 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
pub_type: 杂志文章
doi:10.1016/j.joen.2020.11.007
更新日期:2020-11-18 00:00:00
abstract:INTRODUCTION:This in vitro study compared the performance of the XP-endo Shaper (XP; FKG, La Chaux-de-Fonds, Switzerland) in curved canals when used with a higher speed (3000 rpm) without a glide path with the manufacturer's protocol. METHODS:Twenty extracted mandibular molars with separate mesial curved canals were m...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2019.10.014
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION:This study aimed to evaluate the precision of electronic apex locators (EALs) in locating the apical constriction (AC) during a root canal treatment compared with a histologic evaluation of the AC as well as the effects of possible influencing factors by means of a systematic review of the literature and m...
journal_title:Journal of endodontics
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.joen.2015.08.012
更新日期:2015-11-01 00:00:00
abstract:INTRODUCTION:A number of factors affect the dimensional stability of a material. These factors include curing conditions, material solubility, leaching, and time. The aim of this study was to evaluate the restrained dimensional change in the vertical direction as a function of the ambient conditions, fluid uptake, solu...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2010.11.012
更新日期:2011-02-01 00:00:00
abstract::The purpose of this study was to evaluate the strengthening effect of an internal resin bonding technique. One hundred central incisors were endodontically treated and divided equally into five groups. Group 1, without any cervical preparation and with access repaired with bonded resin, served as the positive control....
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/s0099-2399(98)80108-8
更新日期:1998-04-01 00:00:00
abstract::Endodontic therapy has played an important role in maintaining the integrity of the natural dentition as a fully functional and esthetic masticatory apparatus. Although the sealing of the root canal system is usually accomplished by the conservative endodontic approach, cases which have failed or which involve perfora...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(06)81793-0
更新日期:1991-10-01 00:00:00
abstract:INTRODUCTION:The aim of the present study was to compare the immunoexpression of CD34, intercellular adhesion molecule-1 (ICAM-1), and podoplanin and the presence of mast cells with clinical, demographic, radiologic, and histologic features from periapical granulomas, periapical cysts, and residual cysts. METHODS:Thir...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2018.04.013
更新日期:2018-07-01 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
pub_type: 杂志文章
doi:10.1016/j.joen.2013.08.031
更新日期:2013-12-01 00:00:00
abstract:INTRODUCTION:The mental foramen (MF) is an important landmark in dentistry. Knowledge of its position is central to perform block anesthesia of the mental nerve or to avoid nerve damage during surgical procedures in the premolar area of the mandible. The present radiographic study aimed at evaluating the location and d...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2013.07.033
更新日期:2013-12-01 00:00:00
abstract:INTRODUCTION:Odontoblasts produce dentin throughout life and in response to trauma. The purpose of this study was to identify the roles of endogenous Wnt signaling in regulating the rate of dentin accumulation. METHODS:Histology, immunohistochemistry, vital dye labeling, and histomorphometric assays were used to quant...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2019.07.014
更新日期:2019-11-01 00:00:00
abstract:INTRODUCTION:The effect of endodontic involvement on tooth loss has not been quantified, so the present study aimed to assess this relationship after controlling for other relevant risk factors for tooth loss. METHODS:We analyzed data from 791 participants (18,798 teeth) in the Veterans Affairs Dental Longitudinal Stu...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2010.08.051
更新日期:2010-12-01 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
pub_type: 杂志文章
doi:10.1016/S0099-2399(98)80120-9
更新日期:1998-09-01 00:00:00
abstract::Occurrence of apical transportation (AT) may complicate the root filling procedure and result in a compromised seal. In part I of this study, human mandibular premolars with single, curved (21 to 39 degrees), or straight canals were prepared by Lightspeed or a step-back hand filing technique. An AT index was determine...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1097/00004770-200004000-00003
更新日期:2000-04-01 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
pub_type: 杂志文章
doi:10.1016/j.joen.2011.06.003
更新日期:2011-10-01 00:00:00
abstract::This study investigated the possibility of saliva recontamination occurring between the root canal wall and sealer through dentinal tubules exposed after the cementum was removed at the cervical level by root planing and treatment with citric acid. Thirty-four extracted human maxillary anterior teeth were randomly pla...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(96)80024-0
更新日期:1996-11-01 00:00:00
abstract::This study evaluated the sealing ability of fast and regular set Super-EBA with different powder-to-liquid ratios as a root-end filling material. Fifty extracted maxillary central incisors were uniformly cleaned and shaped using a crown-down technique with Gates-Glidden drills and Profile series 29.04 taper rotary ins...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(99)80378-1
更新日期:1999-08-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to analyze and characterize root canal morphology of mandibular molars of the Brazilian population by using cone-beam computed tomography (CBCT). METHODS:Patients who required CBCT radiographic examinations as part of their routine examination, diagnosis, and treatment planning w...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2013.04.030
更新日期:2013-07-01 00:00:00
abstract:INTRODUCTION:This study aimed to compare the success rates of direct pulp capping (DPC) by using either ProRoot Mineral Trioxide Aggregate (MTA) or Biodentine in the cariously exposed permanent teeth of 6- to 18-year-old patients. Gray discoloration was also evaluated. METHODS:Fifty-nine cariously exposed permanent te...
journal_title:Journal of endodontics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.joen.2017.10.012
更新日期:2018-03-01 00:00:00
abstract:INTRODUCTION:Interferon regulatory factor 8 (IRF8) is a critical transcription factor in innate immune responses that regulates the development and function of myeloid cells. Human periapical lesions are caused by endodontic microbial infections. However, the presence of IRF8 in human periapical lesions remains elusive...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2018.04.015
更新日期:2018-08-01 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
pub_type: 杂志文章
doi:10.1097/00004770-200405000-00012
更新日期:2004-05-01 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
pub_type: 杂志文章
doi:10.1016/j.joen.2007.08.006
更新日期:2007-11-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to evaluate and compare the resistance to cyclic fatigue of the new One Curve (OC) instrument in double (S-shaped) and single curvature canals compared with other nickel-titanium rotary instruments. METHODS:Size 25/.06 of OC, 2Shape (TS), Vortex Blue (VB), ProFile Vortex (PV), an...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2018.07.023
更新日期:2018-11-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to investigate the influence of apical filling material and the modification made to the apical preparation design in surgical endodontics on the areas of stress concentration in the mesial root of a mandibular molar using finite element analysis. METHODS:The filling material was...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2019.12.007
更新日期:2020-04-01 00:00:00
abstract::The apical sealing ability of amalgam, cold-burnished gutta-percha, amalgam with cavity varnish, and SuperEBA cement was evaluated in extracted human teeth. For each experimental group, the roots of 20 single-rooted teeth were sectioned from their crowns. Canals were cleaned, shaped, and obturated with vertically cond...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(89)80132-3
更新日期:1989-03-01 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
pub_type: 杂志文章
doi:10.1097/01.don.0000148149.27636.9c
更新日期:2005-06-01 00:00:00
abstract:INTRODUCTION:The lysyl oxidase (LOX) family is an emerging family of amine oxidases responsible for the formation of collagen fibrils in the extracellular matrix. To date, 5 LOX family genes have been identified in humans, encoding LOX and LOX-like proteins (LOXL, LOXL2, LOXL3, and LOXL4). The goal of this study was to...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2012.03.014
更新日期:2012-06-01 00:00:00
abstract:INTRODUCTION:It has been reported that integrin-α5 (ITGA5) activity is related to cell proliferation, differentiation, migration, and organ development. However, the involvement of ITGA5 in the biological functions of human dental pulp stem cells (hDPSCs) has not been explored. The aim of this study was to investigate ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2013.08.011
更新日期:2014-02-01 00:00:00