Abstract：
:This study compared the apical seal produced by four obturation techniques. Sixty-four extracted human teeth were prepared and obturated using lateral condensation of gutta-percha that was either unmodified or was dipped in chloroform, eucalyptol, or eucapercha paste. After storage in normal saline and 0.02% azide solution at 37 degrees C for 200 days, the teeth were immersed in India ink for 48 h. The most coronal extent of leakage of India ink into the canal was then determined. Significantly more apical leakage occurred in the eucapercha group than in the other three groups. All other comparisons were equivalent. The results suggest that modification of the gutta-percha master cone with solvent does not improve the apical seal in vitro. If modification is desired, then dipping the master cone in either eucalyptol or chloroform produces an apical seal superior to that achieved with eucapercha.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Haas SB,Campbell AD,Hicks ML,Pelleu GB Jrdoi
10.1016/S0099-2399(89)80158-Xsubject
Has Abstractpub_date
1989-12-01 00:00:00pages
596-601issue
12eissn
0099-2399issn
1878-3554pii
S0099-2399(89)80158-Xjournal_volume
15pub_type
杂志文章abstract：:The objective of this study was to evaluate the cytotoxicity of three endodontic sealers (AH Plus/Maillefer-Dentsply, Epiphany/Pentron, GuttaFlow, Coltene-Whaledent). Materials were mixed according to the manufacturer instructions and packed into Teflon molds (10 x 1 mm). For cytotoxicity testing (MTT method), the spe...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.05.006
更新日期：2006-10-01 00:00:00
abstract：:This study investigated possible collateral C-fiber innervation between the pulps of rat molars by assessing neurogenic inflammation (NI) induced by the C-fiber excitant mustard oil (MO). MO was applied to the pulp of the left mandibular first molar in two groups of rats: group 1, guanethidine sympathectomized rats (t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(96)80242-1
更新日期：1996-08-01 00:00:00
abstract：INTRODUCTION:The aim of this retrospective study was to evaluate the outcome of endodontic microsurgery and to examine prognostic factors related to healing. METHODS:The clinical records of all patients who had undergone endodontic microsurgery from 1997-2003 at the National Dental Centre of Singapore were examined. T...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.04.005
更新日期：2014-08-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to determine the variations in root canal length (RCL) occurring during endodontic treatment stages (initial, preflared, and concluded) and correlate them with the accuracy of Root ZX II (RZX). METHODS:After coronal access, 26 mandibular molars had the apical foramen of the 52 me...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.07.022
更新日期：2016-11-01 00:00:00
abstract：:Bisphosphonates are commonly used in medicine to maintain bone density in patients with certain nonneoplastic diseases or cancers. A serious adverse effect of bisphosphonates that has substantial dental significance is osteonecrosis that appears to uniquely affect the mandible and maxilla without occurring in other bo...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000186481.96169.cd
更新日期：2005-11-01 00:00:00
abstract：:The aim of this study was to determine the effects of patient's age on the prevalence and depth of bacterial penetration inside dentinal tubules. Fifty-six single-rooted teeth were divided in two groups based on the patient's age: young (ages 18-25) and old (age >or=60). Teeth were instrumented and inoculated with a s...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2008.10.004
更新日期：2009-01-01 00:00:00
abstract：INTRODUCTION:The purpose of this in vivo study was to evaluate the accuracy of small-volume cone-beam computed tomographic (CBCT) imaging compared with conventional periapical radiography (CPR) in the diagnosis of vertical root fractures (VRFs) using exploratory surgery as the reference standard. METHODS:Eighty-two de...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.04.015
更新日期：2020-08-01 00:00:00
abstract：INTRODUCTION:The diagnosis and treatment planning of cracked teeth depend on the understanding of how cracks affect the surrounding tissues. This study evaluated the dentin and pulp conditions in teeth affected by cracks and attrition. METHODS:Specimens under investigation included 12 cracked posterior teeth and 8 tee...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.09.021
更新日期：2015-03-01 00:00:00
abstract：:The Editorial Board of the Journal of Endodontics has developed a literature-based study guide of topical areas related to endodontics. This study guide is intended to give the reader a focused review of the essential endodontic literature and does not cite all possible articles related to each topic. Although citing ...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2007.08.012
更新日期：2008-05-01 00:00:00
abstract：:Ultrasonic instruments are a valuable asset for removing intraradicular posts from root canals before nonsurgical endodontic therapy. The purpose of this study was to evaluate the relative efficacy of post removal by ultrasonic and sonic devices. Fifty extracted teeth were instrumented and obturated. The canals were p...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80044-0
更新日期：1994-10-01 00:00:00
abstract：:This study investigated the retreatment effectiveness of .04 Taper nickel-titanium rotary ProFiles. Thirty extracted single-rooted anterior teeth were instrumented and obturated with gutta-percha/Roth's Sealer using lateral condensation. They were distributed into three groups of 10 each. Retreatment for group A was d...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200002000-00010
更新日期：2000-02-01 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：:Little is known about the effect of aging on characteristic functions of pulp cells. When damaged pulp is recovered and mineralized tissue is formed to protect remaining pulp tissue, the general responses of pulp tissue after adequate stimuli (pulp cell proliferation and activation of alkaline phosphatase [ALPase]) ar...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200301000-00003
更新日期：2003-01-01 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 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：:The purpose of this study was to investigate histologically and histometrically the changes in pulpal and periapical tissues after pulpal exposure in rats. All animals received a pulpal exposure in the left mandibular first molar. Animals were killed at 1 to 56 days after pulpal exposure, and their mandibles were eval...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80020-8
更新日期：1994-01-01 00:00:00
abstract：:Unlike most cases of combined orthodontic and endodontic therapy that have been reported, in this case endodontic treatment with calcium hydroxide-induced calcification was utilized prior to orthodontic treatment. A 14-yr-old female required orthodontic therapy due to anterior crowding. Preoperative periapical radiogr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80290-6
更新日期：1994-05-01 00:00:00
abstract：INTRODUCTION:Dentin regeneration is one of the main goals of vital pulp treatment in which the biological properties of dental pulp cells (DPCs) need to be considered. In our previous study, we showed that EDTA could enhance the stromal cell-derived factor 1 alpha-induced migration of DPCs. The purpose of this study wa...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.12.003
更新日期：2020-12-20 00:00:00
abstract：INTRODUCTION:The purpose of this study was to investigate the effects of instrumentation and irrigation on the initial adherence of Enterococcus faecalis to root canal dentin and to explore initial microbial adhesion to root filling materials. METHODS:The following specimens were prepared: instrumented and uninstrumen...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.04.006
更新日期：2019-07-01 00:00:00
abstract：:This report examines three clinical cases of root-filled teeth with primary endodontic lesions. During endodontic surgery, an area of incomplete root bifurcation beginning in the coronal or middle third of the root surface and terminating at or near the apical foramen were observed. The radicular grooves of two teeth ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200005000-00012
更新日期：2000-05-01 00:00:00
abstract：:The antimicrobial effect of RC-Prep and its components--10% urea peroxide, 15% EDTA, and glycol--were evaluated individually, in vitro, within dentinal tubules. Standardized bovine incisor root specimens that had been infected with either Staphylococcus aureus or Streptococcus peltzer were incubated with each agent fo...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80296-9
更新日期：1999-12-01 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：:The aim of this study was to assess the cytotoxicity of pure eugenol in an in vitro method by diluting it to various concentrations in alcohol and determining the maximum noncytotoxic concentration. We used solutions of eugenol and ethyl alcohol that are soluble in water in any given proportion. The cytotoxicity of th...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(96)80012-4
更新日期：1996-10-01 00:00:00
abstract：:A case report is presented describing the treatment for endemic dental fluorosis. Six maxillary anterior teeth were treated, three with an acid-bleach combination technique and three with an acid technique. No clinical differences was noted in treatment time or esthetic results. ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81703-6
更新日期：1991-07-01 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：:This study sought to evaluate the influence of apical enlargement on the sealing ability of vertical compaction. Sixty anterior teeth were used. Half of these teeth were prepared to a size 25 file and the other half to a size 40 file. Then vertical compaction was performed. Apical microleakage was determined using pre...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80091-9
更新日期：1994-07-01 00:00:00
abstract：:Although many options are proposed for the treatment of cracked posterior teeth, most treatment decisions are not evidence based. Thus, considerable individual variation can occur regarding treatment recommendations for the same scenario. To our knowledge, there are no studies in the literature assessing practitioners...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.03.029
更新日期：2017-09-01 00:00:00
abstract：INTRODUCTION:Growth and differentiation factor-5 (GDF-5) is a multifunctional protein that regulates the development and repair in many tissues. The purpose of this study was to investigate whether GDF-5 may influence the proliferation, differentiation, and collagen turnover of human dental pulp cells. METHODS:Human d...
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：:The aim of this study was to evaluate alterations on the surface of gutta-percha and Resilon cones when exposed to 2% chlorhexidine gel (CHX) and 5.25% sodium hypochlorite (NaOCl) and to evaluate their possible antibacterial residual effects against Enterococcus faecalis and Porphyromonas gingivalis. A total of 270 me...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.11.024
更新日期：2007-08-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to evaluate the effect of calcium hydroxide (CH) and antibiotic pastes, including a mixture of metronidazole and ciprofloxacin, with and without minocycline or cefaclor, on the dislocation resistance of mineral trioxide aggregate (MTA) to root dentin. METHODS:Eighty single-rooted...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.08.018
更新日期：2014-12-01 00:00:00
