Abstract:
:This in vitro study was carried out to determine (1) the hydrophobicity of selected oral bacteria, (2) the influence of growth media (saliva and serum) and mode of growth (planktonic or biofilm) on the hydrophobicity of Enterococcus faecalis, and (3) the influence of growth media and conditioning fluids on the adherence of E. faecalis to dentin. The ability to bind to a hydrocarbon phase (xylene) was used as an index of relative hydrophobicity of cells. Fluorescent microscopy-based technique was used to assay the bacterial adherence to dentin. Results showed that bacteria involved in the primary stage of oral biofilm formation such as Streptococcus mutans, Fusobacterium nucleatum, and Porphyromonas gingivalis are relatively more hydrophobic than E. faecalis. The hydrophobicity of E. faecalis was significantly increased during starvation and biofilm mode of growth (p < .05). The adherence of E. faecalis to dentin was appreciably increased after starvation and when dentin was conditioned with saliva. It was observed that surface conditioning of dentin with saliva and starvation can enhance the adherence of E. faecalis to dentin. The findings from this study indicated that the coronal leakage of saliva and the physiologic state of microbes might play an important role in the adherence and biofilm formation of bacteria to root canal dentin.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
George S,Kishen Adoi
10.1016/j.joen.2007.07.035subject
Has Abstractpub_date
2007-12-01 00:00:00pages
1421-5issue
12eissn
0099-2399issn
1878-3554pii
S0099-2399(07)00710-8journal_volume
33pub_type
杂志文章abstract:INTRODUCTION:The aim of the present study was to investigate the influence of root-end preparation and filling material on endodontic surgery outcome. A systematic review and meta-analysis was conducted to determine the outcome of resin-based endodontic surgery (RES, the use of high-magnification preparation of a shall...
journal_title:Journal of endodontics
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.joen.2018.02.021
更新日期:2018-06-01 00:00:00
abstract::This study compared the cytotoxicity of MetaSEAL (Parkell Inc, Farmington, NY), a methacrylate resin-based sealer with an epoxy resin-based (AH Plus Jet; Dentsply Caulk, Milford, DE) and a zinc oxide-eugenol-based sealer (Pulp Canal Sealer; SybronEndo, Orange, CA). Five-millimeter diameter disks prepared from the resp...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2008.06.020
更新日期:2008-09-01 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
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004770-200402000-00013
更新日期:2004-02-01 00:00:00
abstract:INTRODUCTION:Fusion is a rare occurrence, and its definitive diagnosis is of prime importance for successful root canal treatment. This case report discusses the endodontic management of a supernumerary tooth fused with a right maxillary first molar by using cone-beam computed tomography (CBCT). METHODS:Nonsurgical en...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2010.08.026
更新日期:2010-11-01 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
pub_type: 杂志文章
doi:10.1097/00004770-200311000-00022
更新日期:2003-11-01 00:00:00
abstract::This report documents the case of a patient who developed neuropathy that presented as dental pain and was later diagnosed with Lyme disease. A healthy female patient presented to the endodontist with toothache symptoms. Her symptoms included intense pain in the left mandible irradiating into the temporalis area and t...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2020.06.011
更新日期:2020-09-01 00:00:00
abstract:INTRODUCTION:External apical root resorption (EARR) is a frequent iatrogenic effect of orthodontic treatment. The way root-filled teeth respond to orthodontic forces with respect to EARR has been reported as varying widely between individuals. Genetic variants in the interleukin-1 gene have been associated with an incr...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2011.12.022
更新日期:2012-03-01 00:00:00
abstract::Regulated cell death (RCD) is a preferred term inclusive of all modes of cell death regulated by multiple intracellular signal transduction pathways under physiological and pathologic conditions. Although cell death programs ensure correct growth and developmental processes as well as protect the host against microbia...
journal_title:Journal of endodontics
pub_type: 杂志文章,评审
doi:10.1016/j.joen.2020.07.006
更新日期:2020-10-01 00:00:00
abstract:INTRODUCTION:The present study aimed to evaluate the antibacterial effect of a new peptide, DJK-5, used alone or mixed together with EDTA on mono- and multispecies biofilms in dentin canals covered by a smear layer with or without preceding sodium hypochlorite (NaOCl) irrigation. METHODS:One hundred twelve dentin bloc...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2018.07.018
更新日期:2018-11-01 00:00:00
abstract:INTRODUCTION:Cell migration is an important step in pulpal wound healing. Although components in the resin-based dental materials are known to have adverse effects on pulp wound healing including proliferation and mineralization, their effects on cell migration have been scarcely examined. Here, we investigated the eff...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2013.06.004
更新日期:2013-09-01 00:00:00
abstract::A unique case of a mandibular molar with 5 canals is described. Literature pertaining to the analysis of the morphology of mandibular first molars is reviewed. Clinicians should thoroughly examine the pulpal floor and radiographs for the possibility of additional canals. ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(97)80211-7
更新日期:1997-01-01 00:00:00
abstract::In this retrospective study with limited cone-beam computed tomography (limited CBCT), we investigated the anatomic characteristics of the accessory mental foramina and accessory branches of the mandibular canal. The CBCT records of approximately 150 patients were evaluated, and 17 accessory mental foramina were found...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2008.08.033
更新日期:2008-12-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was to examine the level of erosion in root dentin caused by different irrigation methods and protocols. METHODS:Thirty-five extracted upper molar teeth were instrumented and divided into 7 groups to undergo treatment by different methods: negative control, GentleWave System (Son...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2016.07.024
更新日期:2016-12-01 00:00:00
abstract::The putative hazardous nature of chloroform and xylene implies that safer substitutes should be considered. Standard cylindrical gutta-percha samples were immersed in Hemo-De, a xylene substitute, for 60 s at 37 degrees C. Weight loss of a sample, after drying, was used as a measure of its solubility. Master and acces...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1097/00004770-200007000-00001
更新日期:2000-07-01 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 examine the effect of pulp cell injection on host angiogenesis during wound healing. METHODS:Pulp cells were isolated from extracted premolars by the outgrowth method. Fluorescently labeled pulp cells or phosphate-buffered saline were locally injected into a mouse wound healin...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2013.01.011
更新日期:2013-06-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was to evaluate the effect of low-surface tension EDTA solutions on the push-out bond strength of resin-based sealer to young and old root canal dentin. METHODS:Root canals from 64 (n = 32 age <30 years old and n = 32 >60 years old) extracted, decoronized, single-rooted human tee...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2017.09.007
更新日期:2018-03-01 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
abstract::The purpose of this study was to compare the degree of anesthesia obtained with 2% lidocaine with three different concentrations of epinephrine for inferior alveolar nerve block. Using a repeated measures design, 30 subjects randomly received an inferior alveolar injection using masked cartridges of each solution at t...
journal_title:Journal of endodontics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/S0099-2399(97)80271-3
更新日期:1997-03-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was to evaluate the fracture strength of roots instrumented with the Self-Adjusting File (SAF; ReDent-Nova, Ra'anana, Israel) and the ProTaper system (Dentsply Maillefer, Ballaigues, Switzerland) and filled with the cold lateral compaction technique. METHODS:In total, 50 mandibul...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2013.08.030
更新日期:2014-04-01 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
pub_type: 杂志文章
doi:10.1097/00004770-200308000-00008
更新日期:2003-08-01 00:00:00
abstract::Non-surgical endodontic treatment represents a cornerstone of contemporary endodontic care. Reflecting the central importance of this therapy, there is a high number of studies that address issues related to this treatment. Unfortunately, many of these studies are preclinical "bench top" studies with largely undefined...
journal_title:Journal of endodontics
pub_type: 杂志文章,评审
doi:10.1016/j.joen.2009.05.019
更新日期:2009-08-01 00:00:00
abstract:INTRODUCTION:We evaluated the effect of various antimicrobials used in endodontic regeneration on a 3-week-old Enterococcus faecalis biofilm. METHODS:E. faecalis biofilm was grown on standardized dentin samples for 3 weeks. Infected dentin samples were randomized into 8 experimental groups (n = 8) and treated with cal...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2015.09.023
更新日期:2016-02-01 00:00:00
abstract:INTRODUCTION:An evaluation was made of the connective tissue reaction in rats after subcutaneous implantation of methacrylate resin-based sealers (EndoREZ [Ultradent Products, Inc, South Jordan, UT] with a polymerization accelerator and RealSeal [Sybron Dental Specialties, Orange, CA]) and Pulp Canal Sealer (Sybron Den...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2010.06.019
更新日期:2010-09-01 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::A new endodontic obturation and retrofilling material has been invented to satisfy Grossman's requirements for an ideal material. Methylene blue dye leakage studies were carried out to compare the new material with conventional products, for both obturation and retrofilling. The experimental material when used in root...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1097/00004770-200207000-00008
更新日期:2002-07-01 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
pub_type: 杂志文章
doi:10.1097/01.don.0000155259.22746.ae
更新日期:2005-09-01 00:00:00
abstract::The aim of this review was to consider laboratory experiments and clinical studies of calcium hydroxide-based root canal sealers. An extensive search of the endodontic literature was made to identify publications related to calcium hydroxide-based root canal sealers. The articles were assessed for the outcome of labor...
journal_title:Journal of endodontics
pub_type: 杂志文章,评审
doi:10.1016/j.joen.2008.11.026
更新日期:2009-04-01 00:00:00
abstract::The external cervical root resorption associated with intracoronal bleaching of pulpless teeth can be a devastating lesion. It often cannot be repaired. To prevent this problem, increasing attention has been focused on placing a barrier between the pulp chamber and the endodontic filling material. The objective of thi...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/s0099-2399(06)80822-8
更新日期:1994-06-01 00:00:00
abstract::The aim of this study was to describe a guided endodontic technique that facilitates access to root canals of molars presenting with pulp calcifications. A 61-year-old woman presented to our service with pain in the upper left molar region. The second and third left molars showed signs of apical periodontitis confirme...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2018.02.009
更新日期:2018-05-01 00:00:00