Abstract：
:The cytotoxic effects of a new epoxy resin-based root canal sealer (AH-plus), together with those of two other commonly used endodontic sealers (AH26 and zinc oxide-eugenol), have been studied in vitro on a culture of human gingival fibroblasts. Cytotoxicity was assessed by direct incubation of sealers' extracts with the cultured fibroblasts at different time intervals. Morphological and cytotoxic effects of the sealers were evaluated microscopically and spectrophotometrically using the neutral red cytotoxicity assay. Our results demonstrated that the cytotoxic effects induced by zinc oxide-eugenol were detectable as early as 1 hr after mixing and remained at a high level until completion of the experiment (5 wk). AH26, however, induced early cytotoxic effects that lasted for 1 wk, followed by a substantial reduction in cytotoxicity. Cytotoxicity of the AH-plus was confined to the early period of experiment and was no longer detectable after 4 hr of mixing. Comparison between the results obtained for each sealer revealed significant differences at particular time intervals. Our findings suggest the potential advantage of this sealer over the other two sealers.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Azar NG,Heidari M,Bahrami ZS,Shokri Fdoi
10.1097/00004770-200008000-00008keywords:
subject
Has Abstractpub_date
2000-08-01 00:00:00pages
462-5issue
8eissn
0099-2399issn
1878-3554pii
S0099-2399(05)60919-3journal_volume
26pub_type
杂志文章abstract：:The purpose of this study was to evaluate the dental anxiety expressed among patients undergoing endodontic treatment with respect to some social and dental parameters. The dental records of 98 patients, 42 men and 56 women who were referred for root canal treatment to an endodontist, were examined. Patients completed...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80028-9
更新日期：1998-06-01 00:00:00
abstract：INTRODUCTION:The lysyl oxidase (LOX) family is an emerging family of amine oxidases responsible for the formation of collagen fibrils in the extracellular matrix. To date, 5 LOX family genes have been identified in humans, encoding LOX and LOX-like proteins (LOXL, LOXL2, LOXL3, and LOXL4). The goal of this study was to...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.03.014
更新日期：2012-06-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to determine the prevalence and characteristics of postoperative pain after endodontic microsurgery and to identify potential predictors for severe pain. METHODS:One hundred seventy-three patients who underwent endodontic microsurgery at a private practice were included in the st...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.12.012
更新日期：2020-12-23 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：: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
pub_type： 杂志文章
doi：10.1016/j.joen.2006.08.005
更新日期：2007-02-01 00:00:00
abstract：:This in vitro study compared the accuracy of file length measurements made on calibrated and uncalibrated direct digital images. Endodontic files of known lengths and ISO sizes were used in 10 single-rooted, relatively straight teeth within cadaver specimens. The crowns of the teeth were ground flat and an orthodontic...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200112000-00017
更新日期：2001-12-01 00:00:00
abstract：INTRODUCTION:The purpose of this article was to compare the cyclic fatigue resistance of Reciproc and Reciproc Blue files (VDW GmbH, Munich, Germany) that were used to prepare root canals of mandibular molar teeth with or without a glide path. METHODS:Sixty Reciproc R25 and 60 Reciproc Blue R25 files were used. The Re...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.03.004
更新日期：2018-06-01 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：:Sixty-eight standardized human root specimens were infected with Enterococcus faecalis for 3 wk after removal of the smear layer. After 3 wk of infection, the smear layer was reformed and in half of the specimens, the smear layer was again removed. Aqueous Ca(OH)2 paste and silicone oil based Ca(OH)2 paste were used a...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200105000-00004
更新日期：2001-05-01 00:00:00
abstract：INTRODUCTION:Matrix extracellular phosphoglycoprotein (MEPE), a new member of the small integrin binding ligand N-glycosylated (SIBLING) family, is believed to play multifunctional roles in regulation of cell signaling, mineral homeostasis, and mineralization. METHODS:To study how MEPE affects the downstream genes inv...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.10.015
更新日期：2012-03-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors. METHODS:This study includes data on 284 patients (337 teeth with ev...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.05.026
更新日期：2017-10-01 00:00:00
abstract：:The endodontic endosseous implant (EEI) enjoyed wide use in the United States after it was introduced in the 1960's. For various reasons including incorrect case selection, improper use of the materials, and poor preparation for the implant a high number of failures resulted. Following opposition by some members of th...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81496-2
更新日期：1993-10-01 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：INTRODUCTION:The purpose of this investigation was to determine the effect that apical preparation size and preparation taper have on the volume of irrigant delivered at the working length for different canal curvatures using apical negative pressure irrigation. METHODS:One hundred fifty-five human teeth (55 maxillary...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2012.10.008
更新日期：2013-01-01 00:00:00
abstract：:A tight and long-lasting seal of root-end fillings is of prime clinical importance. A hundred standard bovine root sections, each 3 mm high and with a central pulp lumen of 2.6 mm in diameter, were filled with five commonly used or potential root-end filling materials. At 24 h, or at 3, 6, or 12 months after filling, ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80077-0
更新日期：1998-08-01 00:00:00
abstract：:The cleaning capacity of manual and rotary instrumentation techniques in mesial-distal flattened canals was studied by morphometric analysis. Twenty human mandibular incisors were divided into two groups of 10 teeth each: group 1, crown-down technique with rotary instrumentation using ProFile .04; group 2, crown-down ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200205000-00004
更新日期：2002-05-01 00:00:00
abstract：INTRODUCTION:It is important to develop an antimicrobial agent without any damage on dental pulp. In the present study, we examined whether pretreatment of bacterial lipopolysaccharides (LPS) with ozonated water (O(3)aq) improves LPS-induced responses of rat odontoblastic cell line, KN-3. METHODS:After the pretreatmen...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.01.016
更新日期：2009-05-01 00:00:00
abstract：:A method of using osseointegrated implants as an alternative treatment modality for transverse root fractures near the osseous crest is presented. A 15-mm Branemark implant was placed immediately after extraction of a maxillary central incisor with transverse root fracture. Five months after stage I surgery, the impla...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80096-4
更新日期：1998-02-01 00:00:00
abstract：:The mesiobuccal roots of 50 randomly selected maxillary first molars were examined to assess the incidence and position of the canal isthmus. Transverse serial sections of the apical 6 mm of each root were prepared in 1-mm increments. The apical side of each section was stained with methylene blue dye, viewed with a s...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80975-1
更新日期：1995-07-01 00:00:00
abstract：INTRODUCTION:It was recently reported that heme oxygenase-1 (HO-1) activity is related to stem cell differentiation; however, the involvement of HO-1 in pulp cell growth and differentiation has not been well explored. The purpose of this study was to investigate the role of HO-1 in the growth and differentiation of hum...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.04.011
更新日期：2010-08-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to examine whether Enterococcus faecalis isolates from endodontic patients (from saliva and from a root canal) are able to prevail against salivary bacteria when grown in coculture in a biofilm reactor. METHODS:Saliva that was tested to be free of E. faecalis was used as the inoc...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.04.013
更新日期：2009-07-01 00:00:00
abstract：:In vitro root surface temperatures produced during post space preparation were measured. The preparations were made using a GPX bur with rotational speeds of 6,500, 8,000, 9,500, 11,000, and 15,000 rpm. The overall mean temperature increase ranged from 0.66 degree to 4.81 degrees C and was greatest at 8,000 rpm. When ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(96)80264-0
更新日期：1996-06-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to compare 2 reciprocating nickel-titanium systems with different manufacturing characteristics and to evaluate the influence of simulated clinical use on their torsional resistance. METHODS:New 25/.08 WaveOne Primary (WO; Dentsply Sirona, York, PA) and 25/.07 WaveOne Gold Primar...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.04.009
更新日期：2019-08-01 00:00:00
abstract：:This study evaluated the sealing ability of fast and regular set Super-EBA with different powder-to-liquid ratios as a root-end filling material. Fifty extracted maxillary central incisors were uniformly cleaned and shaped using a crown-down technique with Gates-Glidden drills and Profile series 29.04 taper rotary ins...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80378-1
更新日期：1999-08-01 00:00:00
abstract：INTRODUCTION:The purposes of this retrospective study were to evaluate the clinical and radiographic outcomes of mineral trioxide aggregate apexification and revascularization in nonvital immature permanent teeth and to analyze factors influencing treatment outcome. METHODS:Forty-six cases (29 cases of apexification a...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.10.030
更新日期：2017-02-01 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：INTRODUCTION:The primary aim was to explore the criteria used in characterization of reparative cells and mineralized matrices formed after treatment of pulp exposures, and the sequence of relative events. The secondary aim was to evaluate whether the reparative events depend on the experimental model species, age, and...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.12.002
更新日期：2019-03-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to evaluate and compare the resistance to cyclic fatigue of the new One Curve (OC) instrument in double (S-shaped) and single curvature canals compared with other nickel-titanium rotary instruments. METHODS:Size 25/.06 of OC, 2Shape (TS), Vortex Blue (VB), ProFile Vortex (PV), an...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.07.023
更新日期：2018-11-01 00:00:00
abstract：:The purpose of this study was to evaluate a new periapical index based on cone beam computed tomography (CBCT) for identification of apical periodontitis (AP). The periapical index proposed in this study (CBCTPAI) was developed on the basis of criteria established from measurements corresponding to periapical radioluc...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2008.08.013
更新日期：2008-11-01 00:00:00
abstract：:The aim of this study was to evaluate and compare the quantitative and qualitative inflammatory responses and bone formation potential after implantation of polyethylene tubes filled with a new calcium hydroxide containing sealer (MBPc) and ProRoot mineral trioxide aggregate (MTA). There were 48 Wistar rats divided in...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.07.007
更新日期：2006-06-01 00:00:00
