Abstract：
INTRODUCTION:This study evaluated the effects of three different endodontic sealers on the bond strength of a fiber post cemented with adhesive resin cement. METHODS:Forty-eight extracted maxillary central incisors were prepared with the step-back technique and randomly divided into four groups (n=12 for each group): group 1, control group (gutta-percha points only, no sealer); group 2, resin-based sealer (AH plus; Dentsply De Trey GmbH, Konstanz, Germany); group 3, zinc oxide-eugenol-based sealer (Endofill; Produits Dentaires SA, Vevey, Switzerland); and group 4, calcium hydroxide-based sealer (Sealapex; Kerr, Romulus, MI). The roots were obturated with gutta-percha using the cold lateral compaction technique. Fiber posts were cemented into the prepared post spaces with the adhesive resin cement Panavia F 2.0 (Kuraray Medical, Okayama, Japan). A push-out test was performed in a universal machine, and failure modes were observed. Morphologic changes of the root canal dentin surfaces were examined with scanning electron microscopy (SEM). RESULTS:One-way analysis of variance revealed that sealers have significant effects on bond strength (p<0.05). The control group had the highest mean push-out bond strength. No statistical difference was detected between the eugenol-based sealer group and the resin-based sealer group (p>0.05). The root surfaces were covered with the smear layer and debris in all the groups after post space preparation in SEM analysis. However, some of the dentin tubules were partially open in the control and calcium hydroxide-based sealer groups after the application of the resin monomer. CONCLUSION:The results of this study showed that the type of canal sealer and chemomechanical preparation of the root canals affect the bond strength of a fiber post cemented with resin cement.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Demiryürek EO,Külünk S,Yüksel G,Saraç D,Bulucu Bdoi
10.1016/j.joen.2009.11.014subject
Has Abstractpub_date
2010-03-01 00:00:00pages
497-501issue
3eissn
0099-2399issn
1878-3554pii
S0099-2399(09)01014-0journal_volume
36pub_type
杂志文章abstract：:This report presents a rare case of odontogenic cutaneous sinus tract caused by a vertical root fracture. The root-fractured molar was probably caused by an accidental blow by a cow 3 years ago. Despite all treatments by physicians and surgeons for nearly 1 year, the sinus tract recurred repeatedly. After diagnosis an...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/s0099-2399(06)81130-1
更新日期：1997-09-01 00:00:00
abstract：INTRODUCTION:Studies have found women try to avoid pain more than men, accept it less, and fear it more. The role of operator gender on subject gender pain in a clinical setting needs further study. The purpose of this randomized, double-blind investigation was to evaluate operator gender and its influence on reported ...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2014.10.001
更新日期：2015-02-01 00:00:00
abstract：INTRODUCTION:The purpose of this in vitro study was to compare the cytotoxicity of white mineral trioxide aggregate cement (AMTA, MTA-Angelus), Brasseler Endosequence Root Repair Putty (ERRM), Dycal, and Ultra-blend Plus (UBP) by using human dermal fibroblasts and a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.11.012
更新日期：2012-03-01 00:00:00
abstract：:The purpose of this study was to compare the cleaning efficacy of passive ultrasonic activation with that of passive sonic activation after hand instrumentation. Sixty curved molar canals were hand-instrumented to size 35 and divided into three groups. Group 1 received no further treatment. Group 2 received 3 min of p...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80120-4
更新日期：1999-11-01 00:00:00
abstract：:The role of T-cells in the development of periapical lesions was investigated immunohistochemically using 16 normal (BALB/c) mice and 16 nude (BALB/c nu/nu) mice (congenitally T-cell-deficient mice). The pulp chambers of maxillar first molars of all mice were opened, and the infiltrated immunocytes (anti-Thy1.2, -Lyt-...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80565-0
更新日期：1995-04-01 00:00:00
abstract：:This study tested the hypothesis that the seal of EndoREZ may be improved with an adhesive-modified technique. Instrumented single-rooted teeth were filled with: (a) Warm vertical compaction with AH Plus (control); (b). EndoREZ with master cones and passive application of accessory cones; (c) Application of Clearfil L...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2006.01.006
更新日期：2006-08-01 00:00:00
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 mon...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.11.005
更新日期：2007-01-01 00:00:00
abstract：:Thirteen teeth in human cadaver sections were accessed and #15 K-files were placed at various lengths in one root canal of each tooth. Using a positioner to ensure duplicate views, radiographs were taken with both Ultraspeed and Ektaspeed Plus X-ray film. Each of the 26 radiographs was coded and then placed in random ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80216-1
更新日期：1998-01-01 00:00:00
abstract：INTRODUCTION:Irrigation dynamics and antibacterial activity determine the efficacy of root canal disinfection. Sonic or ultrasonic agitation of irrigants is expected to improve irrigation dynamics. This study examined the effects of microbubble emulsion (ME) combined with sonic or ultrasonic agitation on irrigation dyn...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.07.007
更新日期：2012-11-01 00:00:00
abstract：INTRODUCTION:Porphyromonas gingivalis and Tannerella forsythia are anaerobic bacteria commonly involved in root canal infections. Although previous investigations have assessed these species by strictly qualitative approaches, accurate determination of their cell levels by a sensitive quantitative technique may contrib...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.08.005
更新日期：2009-11-01 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：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:This 2-part study hypothesized that a bioactive scaffold containing a sustained transforming growth factor (TGF)-β1-releasing nanoparticle system will promote migration and enhance differentiation of stem cells from the apical papilla (SCAP). The study aimed to develop and characterize a novel modified chi...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.06.017
更新日期：2016-09-01 00:00:00
abstract：INTRODUCTION:Calcium hydroxide (Ca[OH]2) is a widely used interappointment dressing, but its antibacterial property is compromised by dentin. Hence, the addition of chlorhexidine (CHX) with Ca(OH)2 has been proposed. However, the antimicrobial efficacy of this mixture compared with Ca(OH)2 alone is currently still deba...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.01.020
更新日期：2016-05-01 00:00:00
abstract：:The denaturation temperature (T(d)) of dentin collagen in mineralized versus demineralized teeth was examined as a function of dentin age and the extent of dehydration. Using differential scanning calorimetry, T(d) of mineralized dentin was shown to be between 160 degrees C to 186 degrees C, depending on whether it wa...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.10.062
更新日期：2006-07-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to evaluate the radiopacity of calcium aluminate cement (EndoBinder) with 3 different radiopacifiers (bismuth oxide, zinc oxide, or zirconium oxide) in comparison with gray mineral trioxide aggregate (GMTA), white MTA, and dental structures (enamel and dentin). METHODS:Eighteen t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.10.001
更新日期：2011-01-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to compare the ability of MTA (Dentsply Maillefer, Tulsa, OK) and EndoSequence Root Repair Material (ESRRM; Brasseler USA, Savannah, GA) to set in the presence of human blood and minimal essential media. METHODS:A model was created using polymethyl methacrylate blocks each pr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.04.041
更新日期：2013-08-01 00:00:00
abstract：:The purpose of the present study was to investigate the effect of laser irradiation on calcified nodule formation in human dental pulp (HDP) cells. HDP cells were irradiated once with a Ga-Al-As laser for 5 and 10 min, and calcified nodule formation was determined by von Kossa staining. The laser irradiation increased...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80395-1
更新日期：1999-01-01 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：INTRODUCTION:The aim of this study was to assess the effect of nitrogen ion implantation on the flexibility of rotary nickel-titanium (NiTi) instruments as measured by the load required to bend implanted and nonimplanted instruments at a 30° angle. METHODS:Thirty K3 files, size #40, 0.02 taper and 25-mm length, were a...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.01.012
更新日期：2012-05-01 00:00:00
abstract：:Cytotoxicity was compared between new root canal sealers (New A, New B, and New B-2) and conventional root canal sealers (AH26, Diaket, Canals, Tubi-Seal, and Sealapex). Dental pulp cells of rats, obtained through primary cell culture, were used. In the experiments with the freshly prepared sealers, the incorporation ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(89)80109-8
更新日期：1989-02-01 00:00:00
abstract：:This study compared a tapered, calibrated spreader/plugger instrument (M-series) to noncalibrated spreaders and pluggers in achieving apical condensation of gutta-percha in 20 single-rooted human teeth. The distances between the tip of the instruments and the tip of the master gutta-percha were measured. Results showe...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80680-1
更新日期：1993-04-01 00:00:00
abstract：:The purpose of this study was to evaluate the strengthening effect of an internal resin bonding technique. One hundred central incisors were endodontically treated and divided equally into five groups. Group 1, without any cervical preparation and with access repaired with bonded resin, served as the positive control....
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(98)80108-8
更新日期：1998-04-01 00:00:00
abstract：:Ninety-six human molars were accessed. After flattening of the occlusal surface and removal of the apical two-thirds of the roots, the remaining canal space was instrumented by conventional methods. The teeth were divided into six groups of 15 teeth with three positive and three negative controls. The six experimental...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80078-6
更新日期：1994-12-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to compare the efficacy of the cutting ability of two different instruments, concerning changes in the dentin thickness removed and root canal volume, by using multislice computed tomography scanning. METHODS:Thirty single-rooted mandibular premolars were divided into two equ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.03.036
更新日期：2011-08-01 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：:This randomized, double-blind trial tested the null hypothesis that speed of deposition has no influence on the injection discomfort, efficacy, distribution, and duration of pulp anesthesia after incisive/mental nerve block in adult volunteers. Thirty-eight subjects received incisive/mental nerve blocks of 2.0 mL lido...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.07.016
更新日期：2007-10-01 00:00:00
abstract：:Various cells and inflammatory mediators are involved in the initial pulpal responses to caries. This review focuses on the cellular, neuronal, and vascular components of pulpal innate responses to caries. Discussion will include dentinal fluid, odontoblasts, neuropeptides, and neurogenic inflammation, which are not c...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2007.01.001
更新日期：2007-06-01 00:00:00
abstract：:A nested polymerase chain reaction (PCR)-based method was used to directly survey samples taken from primary endodontic infections for the occurrence of Pseudoramibacter alactolyticus. Identification by nested PCR was performed in root-canal samples from teeth associated with asymptomatic periradicular lesions or acut...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200311000-00012
更新日期：2003-11-01 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
更新日期：1991-05-01 00:00:00
