Abstract：
INTRODUCTION:Passive ultrasonic irrigation (PUI) is the most widespread method used to activate irrigation solutions. Concerns have been raised that PUI is less effective in curved root canals and is not passive at all. Our aim was to compare a novel passive sonic irrigation (PSI) device (6000 Hz) with PUI and manual irrigation (MI) with respect to their efficiency in removing different endodontic microorganisms from curved and straight root canals. METHODS:We performed 2 experiments as follows. In a 3-day infection model, we included 8 groups of single or dual microbial species that were rinsed with 0.9% sodium chloride using PSI, PUI, or MI. Colony-forming units (CFUs) were counted after incubation, and log10 transformations were performed for statistical comparisons. In a 21-d infection model, we tested the same irrigation protocols on 4 groups of microorganisms and used 1.5% sodium hypochlorite as an irrigant. Infection control samples were taken at day 0, 3, 5, and 7 after treatment and were subsequently reincubated. RESULTS:Using sodium chloride as an irrigant, the amount of reduction in CFUs compared with the negative control was approximately 3 log10 units for PSI at 6000 Hz, 2 log10 units for PUI, and 1 log10 unit for MI. PSI reduced the microorganism CFUs significantly better than PUI. Using sodium hypochlorite led to a significant reduction in microorganism CFUs even with MI. After 3 days, compared with MI, microorganism regrowth significantly reduced after PSI and PUI treatment, but in these groups, in at least half of the samples, microorganisms were detectable after 7 days. CONCLUSIONS:PSI at 6000 Hz might be at least equal to PUI with respect to reduction of the microbial load in curved and straight root canals.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Neuhaus KW,Liebi M,Stauffacher S,Eick S,Lussi Adoi
10.1016/j.joen.2016.08.024subject
Has Abstractpub_date
2016-12-01 00:00:00pages
1799-1803issue
12eissn
0099-2399issn
1878-3554pii
S0099-2399(16)30577-5journal_volume
42pub_type
杂志文章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
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abstract：INTRODUCTION:The exact mechanisms of periapical bone resorption have not been fully elucidated. This study aimed to analyze the expression of Notch signaling molecules (Notch2, Jagged1, and Hey1) and proinflammatory cytokines (tumor necrosis factor alpha [TNF-α], interleukin [IL]-1β, and IL-6) in human apical periodont...
journal_title：Journal of endodontics
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doi：10.1016/j.joen.2012.10.002
更新日期：2013-02-01 00:00:00
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abstract：:With the recent influx of osseointegrated endosseous implants in dentistry, attention has been drawn away from using endodontic stabilizers as a means of stabilizing and retaining teeth. It is our opinion that endodontic stabilizers should be considered in the treatment planning of seemingly nonretainable teeth. They ...
journal_title：Journal of endodontics
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abstract：:The aim of this in vivo study was to find a way to conduct qualitative and quantitative evaluations of radicular apical third apposition in rats. Twenty rats were injected intraperitoneally with tetracycline at weight-adjusted doses. Mesio-distal sections of the first mandibular molar regions were prepared. The 60 to ...
journal_title：Journal of endodontics
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abstract：:Because of its close proximity to teeth and periodontium, gingival squamous cell carcinoma (SCC) can sometimes mimic tooth-related benign inflammatory conditions, resulting in misdiagnosis. In this study we report a case of gingival SCC that mimicked a dentoalveolar abscess of endodontic origin in its early presentati...
journal_title：Journal of endodontics
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doi：10.1016/j.joen.2006.08.005
更新日期：2007-02-01 00:00:00
abstract：:Microbial control--fundamental to healing of apical periodontitis--is central to endodontic practice. The effectiveness of antibacterial measures is generally monitored (in clinical research studies) by microbiological root canal sampling (MRS), which is often used as a predictor for healing. This article addresses th...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2006.11.006
更新日期：2007-03-01 00:00:00
abstract：:Various classes of immunoglobulins have been found in human periapical lesions. The specificity of secreted antibodies against antigens egressing from the root canal system has yet to be thoroughly investigated. The purpose of this study was to test the specificity of antibodies present in human periapical lesions. Hu...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81923-0
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journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.06.003
更新日期：2013-10-01 00:00:00
abstract：INTRODUCTION:The aim of this in vitro study was to compare the effectiveness of saline, 2.5% sodium hypochlorite, and 2% chlorhexidine, with or without passive ultrasonic irrigation (PUI), in debris removal from simulated canal irregularities within prepared root canals. METHODS:Ninety bovine lateral incisors were ran...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.08.006
更新日期：2014-12-01 00:00:00
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journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.03.017
更新日期：2011-07-01 00:00:00
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journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200208000-00006
更新日期：2002-08-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to examine the size, volume, and other parameters of preoperative periapical lesions measured from cone-beam computed tomographic (CBCT) images as potential prognostic factors in endodontic microsurgery. METHODS:A clinical database was searched for patients who had received e...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.05.006
更新日期：2016-08-01 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
pub_type： 杂志文章
doi：10.1097/01.don.0000140571.23012.ff
更新日期：2005-04-01 00:00:00
abstract：INTRODUCTION:A ferrule on anterior endodontic-treated teeth has been evaluated using clinical trials, in vitro tests, and finite element analysis (FEA). The patient-specific FEA with a nonuniform ferrule and nonlinear contact biting load associated with clinical validation can be used to predict failure. METHODS:A pat...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.04.024
更新日期：2017-09-01 00:00:00
abstract：:The purpose of this study was to evaluate the number of canals and isthmuses obturated after Cr, Er: YSGG laser treatment. Fifty-two canals were instrumented to a size 40 Profile 0.06 file combined with RC-Prep and sodium hypochlorite, or sterile water. The teeth were divided into 3 groups: (I) canals were flooded wit...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.05.012
更新日期：2007-09-01 00:00:00
abstract：INTRODUCTION:In recent years, the inflammasome has been determined to play an important role in inflammatory diseases. However, the role of the inflammasome in pulpitis remains unclear. Absent in melanoma 2 (AIM2) is a type of inflammasome that recognizes cytosolic double stranded DNA and forms a caspase-1-activating i...
journal_title：Journal of endodontics
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doi：10.1016/j.joen.2013.07.003
更新日期：2013-11-01 00:00:00
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journal_title：Journal of endodontics
pub_type： 杂志文章
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更新日期：1995-01-01 00:00:00
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journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80098-8
更新日期：1998-04-01 00:00:00
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journal_title：Journal of endodontics
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更新日期：2005-11-01 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
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更新日期：1990-09-01 00:00:00
abstract：INTRODUCTION:The aim of the present systematic review and meta-analysis was to evaluate the success and survival rate of endodontically treated cracked posterior teeth and to assess the preoperative factors that affect teeth survival. METHODS:The study protocol was registered on the PROSPERO international prospective ...
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pub_type： 杂志文章,meta分析
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更新日期：2020-04-01 00:00:00
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journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.10.015
更新日期：2007-03-01 00:00:00
abstract：INTRODUCTION:Endodontic diagnostic tests are often used clinically to assess pulp status as a basis for the diagnosis and determination of whether root canal treatment (RCT) is indicated. Response to cold and pain on percussion are 2 common tests, yet their validity in identifying nonvital pulp in regular dental practi...
journal_title：Journal of endodontics
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更新日期：2016-06-01 00:00:00
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journal_title：Journal of endodontics
pub_type： 杂志文章
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更新日期：2020-08-01 00:00:00
abstract：INTRODUCTION:This study evaluated the physicochemical, antimicrobial, and biological properties of white mineral trioxide aggregate (MTA) mixed with aqueous and propylene glycol extracts of Arctium lappa L. and Casearia sylvestris Sw. METHODS:The setting-time test was performed according to American Society for Testin...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.12.023
更新日期：2017-05-01 00:00:00
abstract：:This study examined the effects of calcium-depleting endodontic irrigants, ethylenediamine tetra-acetic acid (EDTA) and BioPure MTAD, on the dissolution, surface characteristics, and ultrastructural characteristics of white mineral trioxide aggregate (MTA). The latter was mixed in a 0.35 water-cement ratio, condensed ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.12.002
更新日期：2007-04-01 00:00:00
abstract：:The purpose of this in vitro study was to evaluate quantitatively the ability of four different filling materials to seal the orifices of root canals as a secondary seal after root canal therapy. Forty extracted human molar teeth were used. The top of pulp chambers and distal halves of the roots were removed using an ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200108000-00006
更新日期：2001-08-01 00:00:00
abstract：INTRODUCTION:Sphingosine-1-phosphate receptor 1 (S1P1) is crucial for regulation of immunity and bone metabolism. This study aimed to investigate the expression of S1P1 in rat periapical lesions and its relationship with receptor activator of nuclear factor kappa B ligand (RANKL) and regulatory T (Treg) cells. METHODS...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.10.010
更新日期：2015-04-01 00:00:00
