Abstract：
:Biopsy reports of specimens from the apices of 1659 teeth physically present at the time the biopsy was performed were reviewed. The following information was recorded from each report: (a) source of specimen, (b) sex of patient, (c) age of patient, (d) location of tooth associated with lesion, and (e) diagnoses reported. Data were recorded and analyzed by chi-square analysis to note significant differences. This study found that 52% of the lesions were granulomas, 42% cysts, 2% periapical scars, and 4% other disorders. No differences were found between males and females in regard to age and location of lesions. Overall, the most common location for lesions was the maxillary anterior, followed by maxillary posterior, mandibular posterior, and finally the mandibular anterior jaw. This also was the case for all age ranges except 60 to 69 yr of age where lesions in the maxillary posterior area were most common. More granulomas were detected in all areas except in the mandibular posterior area where cysts were more common.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Spatafore CM,Griffin JA Jr,Keyes GG,Wearden S,Skidmore AEdoi
10.1016/s0099-2399(06)81679-1subject
Has Abstractpub_date
1990-05-01 00:00:00pages
239-41issue
5eissn
0099-2399issn
1878-3554pii
S0099-2399(06)81679-1journal_volume
16pub_type
杂志文章,评审abstract：INTRODUCTION:MicroRNAs (miRs) are a family of noncoding RNAs that regulate gene expression. They are ubiquitous among multicellular eukaryotes and are also encoded by some viruses. Upon infection, viral miRs (vmiRs) can potentially target gene expression in the host and alter the immune response. Although prior studies...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.10.006
更新日期：2017-01-01 00:00:00
abstract：:Stem cell therapy is a potential strategy to regenerate the dentin-pulp complex, enabling the conservation and restoration of functional teeth. We assessed the efficacy and safety of pulp stem cell transplantation as a prelude before the initiation of clinical trials. Granulocyte-colony stimulating factor (G-CSF) indu...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.01.020
更新日期：2014-04-01 00:00:00
abstract：INTRODUCTION:This study used micro-computed tomographic imaging to compare the shaping ability of Mtwo (VDW, Munich, Germany), a conventional nickel-titanium file system, and Reciproc (VDW), a reciprocating file system morphologically similar to Mtwo. METHODS:Root canal shaping was performed on the mesiobuccal and dis...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.12.032
更新日期：2014-08-01 00:00:00
abstract：:The purpose of this study was to compare the flow of gutta-percha and Resilon (RealSeal; SybronEndo, Orange, CA) into lateral grooves and depressions in the apical 7 mm of a root canal by using warm vertical compaction. A split-tooth model was constructed with lateral grooves and depressions prepared at 1, 3, 5, and 7...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2007.02.017
更新日期：2007-06-01 00:00:00
abstract：INTRODUCTION:Fractured endodontic files present a major problem. A novel method has been proposed to retrieve fractured nickel-titanium (NiTi) endodontic files by using electrochemical dissolution. However, the effect of file dissolution on adjacent soft tissues such as the periodontal ligament (PDL) has not been inves...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.12.013
更新日期：2013-05-01 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：:The anatomy of third molars has been described as unpredictable. However restorative, prosthetic, and orthodontic considerations often require endodontic treatment of third molars in order for them to be retained as functional components of the dental arch. The purpose of this study was to investigate and characterize...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200011000-00011
更新日期：2000-11-01 00:00:00
abstract：INTRODUCTION:The objective of this ex vivo study was to compare the efficacy of passive ultrasonic irrigation (PUI) versus a new activation system using reciprocating motion (EasyClean [EC]; Easy Equipamentos Odontológicos, Belo Horizonte, Brazil) to remove debris from the root canal walls at 6 predetermined apical lev...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.01.016
更新日期：2016-04-01 00:00:00
abstract：:An examination of 5616 endodontically treated and retreated maxillary first and second molars was made in an attempt to determine the percentage of MB2 canals that could be located routinely, and evaluate if there were any significant differences between initial treatments and retreatments. The teeth examined were 357...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000140581.38492.8b
更新日期：2005-04-01 00:00:00
abstract：INTRODUCTION:The objective of this study was to evaluate the pH and calcium ion release of calcium hydroxide pastes associated with different substances. METHODS:Forty acrylic teeth with simulated root canals were divided into 4 groups according to the substance associated to the calcium hydroxide paste: chlorhexidine...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.05.009
更新日期：2009-09-01 00:00:00
abstract：:This study evaluated the ability of ultrasonics and calcium hydroxide to remove pulp tissue debris from the mesial root canals of human mandibular molars. All teeth were instrumented using a standard filing technique and irrigated with an equal volume of 2.6% sodium hypochlorite before the application of the experimen...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(89)80076-7
更新日期：1989-08-01 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: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：:It is a general belief that large cyst-like periapical lesions and apical true cysts caused by root canal infection are less likely to heal after nonsurgical root canal therapy. Nevertheless, there is no direct evidence to support this assumption. A large cyst-like periapical lesion or an apical true cyst is formed wi...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2009.02.012
更新日期：2009-05-01 00:00:00
abstract：INTRODUCTION:The retrieval of fractured instruments from root canals has been largely reported in the literature. However, a less complex retrieval method that causes minimum damage to the dental structures is needed. The aim of this article is to introduce a new concept of retrieval of fractured instruments from root ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.11.024
更新日期：2010-04-01 00:00:00
abstract：INTRODUCTION:Clinicians commonly mix mineral trioxide aggregate (MTA) to a desired consistency rather than use the recommended amounts of powder and water. The purpose of this in vitro study was to evaluate how varying the water-to-powder (WP) ratio affects the setting expansion of white MTA (WMTA) and gray MTA (GMTA)....
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2010.03.010
更新日期：2010-08-01 00:00:00
abstract：:There is an increasing interest in the utility of dental pulp stem cells (DPSCs) for dentin regeneration. The mechanisms involved in DPSC differentiation remain poorly understood. The purpose of the study was to investigate the mineralization capacity of human dental pulp cells (DPCs) and identify potential markers fo...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2007.02.009
更新日期：2007-06-01 00:00:00
abstract：INTRODUCTION:Krüppel-like factor 4 (KLF4) plays an important role in cytodifferentiation and proliferation. Our previous study showed that KLF4 was specifically expressed in polarizing and elongating odontoblasts. However, the role of KLF4 in odontoblast differentiation was still unknown. The purpose of this study was ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.03.030
更新日期：2011-07-01 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:More information regarding the ability of single files to maintain the original canal position is required before adopting a single-file approach to cleaning and shaping. This study compares apical transportation in curved root canals when instrumenting with a single WaveOne (WO) file (Dentsply Tulsa Denta...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.09.021
更新日期：2014-05-01 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 compared the weight and radiographic appearance of Ca(OH)(2) delivered into standardized, minimally and fully prepared canals using (a) an injection system, (b) an endodontic Flex-O file rotated counter-clockwise, (c) a lentulo spiral, and (d) a .04 rotary NiTi file rotated in reverse. Two extracted human s...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.01.009
更新日期：2006-07-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to analyze the features of lesions obtained from biopsies at the periapical area of teeth with a radiographic or clinical initial diagnosis of apical periodontitis. METHODS:A retrospective study was conducted on biopsies obtained from 1953-2018 at 3 Brazilian oral and maxillo...
journal_title：Journal of endodontics
pub_type： 杂志文章,多中心研究
doi：10.1016/j.joen.2020.01.003
更新日期：2020-04-01 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：INTRODUCTION:This study examined the effect of a new bioactive dentin substitute material (Biodentine) on the viability of human gingival fibroblasts. METHODS:Biodentine, White ProRoot mineral trioxide aggregate (MTA), and glass ionomer cement were evaluated. Human gingival fibroblasts were incubated for 1, 3, and 7 d...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.11.026
更新日期：2013-04-01 00:00:00
abstract：:The aim of this laboratory based study was to determine the shaping ability of Lightspeed nickel-titanium rotary instruments in simulated root canals. A total of 40 canals with four different shapes in terms of angle and position of curve were prepared with Lightspeed instruments using the stepback technique recommend...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80347-0
更新日期：1997-12-01 00:00:00
abstract：INTRODUCTION:A vertical root fracture (VRF), commonly found in teeth with endodontic treatment, is challenging to diagnose and has poor treatment outcomes. Cone-beam computed tomography (CBCT) has become an increasingly popular imaging modality in endodontics, but image artifacts arising from root-filling materials may...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2015.10.005
更新日期：2016-02-01 00:00:00
abstract：:The purpose of this in vitro study was to compare dye leakage between canals backfilled in a single increment and canals backfilled in multiple increments using the Obtura II system with two different sealers. Sixty extracted single canal teeth were decoronated, cleaned, and shaped. After master cone fit and placement...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80320-3
更新日期：1999-09-01 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：:K-type files, Sureflex NiTi files, and FlexoFiles were evaluated morphometrically as they come from the manufacturer, and after being used to instrument root canals 1, 3, and 5 times in maxillary premolars. Evaluation was made using a stereomicroscope at x40 magnification and photomicrographs. The abnormalities found ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(98)80046-0
更新日期：1998-07-01 00:00:00
