Abstract：
:The purpose of this study was to determine the influence of operator experience on the ability to locate and fill extra canals in maxillary first and second molars in vivo. The number of canals located and filled from maxillary first and second molars was recorded from three endodontic residents during the first 6 months of their training, and then compared to the last 6 months of their training in a 2-yr endodontic residency program. Data from each resident was collected and compiled together. The study showed a statistically greater percentage of additional canals located and filled by residents in their last 6 months, as compared to the same residents in their first 6 months in maxillary first and second molars (p < 0.05). Therefore, operator experience was found to improve the ability to locate and fill additional canals in maxillary first and second molars.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Corcoran J,Apicella MJ,Mines Pdoi
10.1016/j.joen.2005.11.005subject
Has Abstractpub_date
2007-01-01 00:00:00pages
15-7issue
1eissn
0099-2399issn
1878-3554pii
S0099-2399(05)00123-8journal_volume
33pub_type
杂志文章abstract：:The cytotoxicity of four different calcium hydroxide-based root canal sealers (Sealapex, Apexit, CRCS, and Endoflas FS) was tested using human gingiva fibroblasts. The fibroblasts were acquired from the attached gingiva of apparently healthy patients. The sealers were allowed to set for 24 and 48 h before being covere...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81309-9
更新日期：1992-03-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to compare the accuracy in vivo of 2 electronic apex locators (EALs), the Raypex 5 and the Mini Apex Locator. METHODS:The working length (WL) was determined electronically for 40 human root canals by using a K-file and 1 of the 2 EALs. The files were fixed at the WL, and the ...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2011.06.021
更新日期：2011-10-01 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:The choice of single- versus multiple-visit root canal treatment for infected teeth is in dispute. The purpose of this systematic review was to compare the healing rate and post-obturation pain of single- versus multiple-visit root canal treatment for teeth with infected root canals. METHODS:An exhaustive...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2010.09.005
更新日期：2011-02-01 00:00:00
abstract：INTRODUCTION:We evaluated the radiopacity and antibacterial properties of various concentrations of double antibiotic paste (DAP) containing barium sulfate (BaSO4) or zirconium oxide (ZrO2) radiopaque agents. METHODS:The radiopacity of 1, 10, and 25 mg/mL DAP containing 30% (w/v) BaSO4 or ZrO2, DAP-free radiopaque pas...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.06.010
更新日期：2018-09-01 00:00:00
abstract：INTRODUCTION:This study intended to evaluate the angiogenic properties of vital pulp therapy materials including white mineral trioxide aggregate (WMTA), calcium hydroxide (Ca[OH]2), Geristore (Den-Mat, Santa Maria, CA), and nano WMTA biomaterials. METHODS:WMTA, Ca(OH)2, Geristore, and nano WMTA disks were prepared, d...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.02.008
更新日期：2018-05-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to compare the amount of debris extruded from the apex during retreatment procedures with ProTaper Next (PTN; Dentsply Maillefer, Ballaigues, Switzerland), Reciproc (RCP; VDW, Munich, Germany), and Twisted File Adaptive (TFA; SybronEndo, Orange, CA) files and the duration of these...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.12.003
更新日期：2017-04-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to introduce an innovative method for autotransplantation of teeth using 3-dimensional (3D) surgical templates for guided osteotomy preparation and donor tooth placement. METHODS:This report describes autotransplantation of immature premolars as treatment of an 11-year-old boy ha...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.08.021
更新日期：2016-12-01 00:00:00
abstract：INTRODUCTION:Regenerative endodontic procedures are an alternative treatment for immature teeth with necrotic pulps. Typically, intracanal medicaments such as triple antibiotic paste (TAP) or double antibiotic paste (DAP) and calcium hydroxide (Ca[OH](2)) are used for disinfection. However, their effect on human stem c...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.06.018
更新日期：2012-10-01 00:00:00
abstract：:In the rat, perforations of maxillary molars were created and treated with either tricalcium phosphate (Synthograft) or Cavit. At four time intervals (1 day, 1 wk, 2 wk, and 1 month), four evaluative factors (inflammation, bone resorption, cementum and dentin resorption, and epithelial proliferation) were analyzed and...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(89)80171-2
更新日期：1989-09-01 00:00:00
abstract：INTRODUCTION:The purpose of this prospective, randomized, single-blind crossover study was to evaluate the anesthetic efficacy of a combination palatal and buccal infiltration of the maxillary first molar. MATERIALS AND METHODS:Using a crossover design, 40 subjects received two sets of maxillary first molar infiltrati...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2011.01.005
更新日期：2011-04-01 00:00:00
abstract：:This case report describes an innovative virtual simulation method using a computer-aided rapid prototyping (CARP) model and a computer-aided design (CAD) program for autotransplantation of an immature third molar.A compromised left mandibular second molar (#18) was extracted and replaced by autotransplantation using ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.08.010
更新日期：2018-12-01 00:00:00
abstract：:Teeth are vital sensory organs that contribute to our daily activities of living. Unfortunately, teeth can be lost for several reasons including trauma, caries, and periodontal disease. Although dental trauma injuries and caries are more frequently encountered in a younger population, tooth loss because of periodontal...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.05.014
更新日期：2019-12-01 00:00:00
abstract：:In this study, the effects of heparin on dentinal resorption was investigated in rats. Animals were injected with 2 x 2 IU/g Na-Heparin subcutaneously for 33 days. Histopathological examination of the anterior teeth revealed capillary proliferation, congestion, and fibrosis in the pulp in addition to resorptive lacuna...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80347-1
更新日期：1999-10-01 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 objectives of this review were to assess the methodological quality of published meta-analyses related to endodontics using the assessment of multiple systematic reviews (AMSTAR) tool and to provide a follow-up to previously published reviews. METHODS:Three electronic databases were searched for eligi...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2017.07.019
更新日期：2018-01-01 00:00:00
abstract：INTRODUCTION:Electrically heated pluggers are the most commonly used instruments during warm obturation techniques. This study aimed to evaluate the effect of sterilization and operating temperature settings on the heat generation of pluggers of various taper sizes. METHODS:Fifty pluggers were sterilized at 132°C for ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.09.008
更新日期：2019-12-01 00:00:00
abstract：:This review considers oral trauma and its relationship to orthodontics with respect to prevention and primary, secondary, and tertiary care. The level of evidence is not high in regard to this topic, but recommendable approaches to trauma at each stage are discussed on the basis of available literature and published g...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2012.10.030
更新日期：2013-03-01 00:00:00
abstract：:An in vitro study was conducted to determine the susceptibility of the yeast Candida albicans to various intracanal irrigants and medications. The minimum inhibitory concentration (MIC) of sodium hypochlorite, hydrogen peroxide, chlorhexidine digluconate, and aqueous calcium hydroxide that is required to kill a standa...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200202000-00004
更新日期：2002-02-01 00:00:00
abstract：:This study compared the quality of obturation of high- and low-temperature thermoplasticized injectable gutta-percha techniques and standard lateral condensation. A new model system was developed to more closely simulate the clinical environment. All obturations were performed in this same model which allowed direct c...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81863-7
更新日期：1991-06-01 00:00:00
abstract：INTRODUCTION:Previous studies have suggested that masticatory forces are associated with cracked teeth, but it is not clear which specific poor oral masticatory habits may be more likely to cause cracks. The aim of this study was to quantitatively assess risk factors for cracked teeth among poor oral masticatory habits...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.01.007
更新日期：2017-06-01 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
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 aim of this study was to compare the transportation and centering abilities of the ProGlider (PG; Dentsply-Sirona, Ballaigues, Switzerland), WaveOne Gold Glider (WOGG; Dentsply-Sirona), and R-Pilot (RP; VDW, Munich, Germany) file systems and the changes in the structure model index (SMI), surface area,...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.02.012
更新日期：2019-06-01 00:00:00
abstract：:When dentin is planed by endodontic instruments, a smear layer forms. Whether this layer should be removed is unknown and controversial. This study was conducted to assess the effect of the smear layer on retention of bacteria using an in vitro root canal bacterial colonization model. Canals of 26 extracted human cani...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81186-6
更新日期：1994-02-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to compare canal transportation and the centering ability of Reciproc (VDW, Munich, Germany), WaveOne (Dentsply Maillefer, Ballaigues, Switzerland), and EdgeFile (EdgeEndo, Albuquerque, NM) rotary systems using cone-beam computed tomographic imaging. METHODS:Ninety mesiobucca...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.09.011
更新日期：2018-12-01 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
pub_type： 杂志文章
doi：10.1097/00004770-200310000-00011
更新日期：2003-10-01 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：:Endodontic fillings were challenged with bacterial ingress in mandibular premolars of 4 beagle dogs. Groups 1, 2, and 3 (n = 9), had canals filled with gutta-percha and sealer, gutta-percha alone, and sealer alone, respectively. After 2 wk, pulp chambers were inoculated with plaque. Group 4 (n = 9) and group 5 (n = 5)...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81120-9
更新日期：1997-09-01 00:00:00
abstract：INTRODUCTION:In a clinical situation, an apically resected tooth is often accompanied by a varying degree of periodontal bone loss. The purpose of this study was to assess the influence of apical root resection combined with periodontal bone loss on the biomechanical response of a single-rooted tooth. METHODS:A basic ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.11.011
更新日期：2015-03-01 00:00:00
abstract：INTRODUCTION:Concentrated growth factor (CGF) is considered to be a natural biomaterial that is better than platelet-rich fibrin (PRF) in bone regeneration, but there is little information acquired in regenerative endodontics. Therefore, the purpose of this study was to evaluate their effects on the proliferation, migr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.03.006
更新日期：2018-06-01 00:00:00
