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, leakage along these filling materials was determined under a low headspace pressure of 10 kPa (0.1 atm) using a fluid transport model. During the first 3 months, the percentage of gross leakage (> 20 microliters day-1) increased noticeably for Tytin amalgam (from 20 to 100%) and Super-EBA (from 0 to 55%), whereas it decreased noticeably for mineral trioxide aggregate (MTA; from 55% to 0%). Thereafter, the increased leakage of amalgam and Super-EBA decreased with time, whereas the improved seal of MTA was maintained until the end of the experiment. At 3-, 6-, and 12-month time intervals, both glass ionomer cements (Fuji II and Hi Dense) and MTA showed less leakage than the conventional amalgam and Super-Eba, of which amalgam leaked more.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Wu MK,Kontakiotis EG,Wesselink PRdoi
10.1016/S0099-2399(98)80077-0subject
Has Abstractpub_date
1998-08-01 00:00:00pages
557-60issue
8eissn
0099-2399issn
1878-3554pii
S0099-2399(98)80077-0journal_volume
24pub_type
杂志文章abstract：INTRODUCTION:The purpose of this study was to determine factors and clinical situations that influence an endodontist's decision to use guided tissue regeneration (GTR) techniques during endodontic root-end surgery. METHODS:An invitation to participate in a web-based survey was e-mailed to 3,750 members of the America...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.08.017
更新日期：2011-11-01 00:00:00
abstract：:The expression of the vanilloid receptor subtype 1 (VR1, TRPV1) was detected in human dental pulp fibroblasts (PF-10) using RT-PCR, Western blotting, and immunocytochemical analysis. As revealed by ELISA, capsaicin induced IL-6 expression in PF-10 cells, and the VR1 antagonist capsazepine dose-dependently inhibited ca...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000155259.22746.ae
更新日期：2005-09-01 00:00:00
abstract：:Pulp regeneration and its clinical translation into regenerative endodontic procedures are receiving increasing research attention, leading to significant growth of the published scientific and clinical literature within these areas. Development of research strategies, which consider patient-, clinician-, and scientis...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.06.002
更新日期：2017-09-01 00:00:00
abstract：INTRODUCTION:Recently, it was shown that the biomineralization process promoted by the interaction of mineral trioxide aggregate (MTA) with dentin in phosphate-buffered saline (PBS) positively influenced the push-out bond strength of the cement. This study investigated if the use of a PBS intracanal dressing promotes t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.06.014
更新日期：2010-10-01 00:00:00
abstract：:The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then c...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000157992.29221.41
更新日期：2005-10-01 00:00:00
abstract：:A long-standing lesion associated with an undetected perforation of the furca in a mandibular molar was successfully managed using a multidisciplinary treatment approach. The sequence of therapeutic procedures involved conventional endodontic retreatment, an initial orthograde sealing of the perforation, guided tissue...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80989-1
更新日期：1995-11-01 00:00:00
abstract：INTRODUCTION:The purpose of this systematic review was to compare the clinical and radiographic outcomes of nonsurgical retreatment with those of endodontic surgery to determine which modality offers more favorable outcomes. METHODS:The study began with targeted electronic searches of MEDLINE, PubMed, and Cochrane dat...
journal_title：Journal of endodontics
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.joen.2009.04.023
更新日期：2009-07-01 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 biocompatibility and apical microleakage of tricalcium phosphate based Sankin Apatite (SA) Type I, II, and III root canal sealers were investigated. Teflon tubes containing freshly mixed test materials were implanted in the subcutaneous tissue of mice. The observation periods were 24 h, 7, and 30 days, after which...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(97)80255-5
更新日期：1997-02-01 00:00:00
abstract：:Immune and nervous systems play key roles in periapical pathosis; however, their spatial associations, which may be a prerequisite for paracrine interactions in the progression of periapical lesions, remain to be examined. In this study we examined the distribution and frequency of spatial associations between major h...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.08.014
更新日期：2007-02-01 00:00:00
abstract：:Ninety extracted human teeth with a single canal and a large patent foramen were obturated by one of three methods after placement of a master gutta-percha cone and sealer. The apical seals were evaluated by ink penetration. Statistical analysis of the results indicated that the group obturated with the high-temperatu...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(89)80052-4
更新日期：1989-07-01 00:00:00
abstract：INTRODUCTION:Calcium hydroxide has been used as a traditional pulpotomy agent for a long time but has some disadvantages. iRoot BP Plus (Innovative Bioceramix Inc, Vancouver, Canada) is a newly developed, ready-to-use calcium silicate-based bioactive ceramic with excellent bioactivity and sealing ability. However, whet...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.12.010
更新日期：2020-03-01 00:00:00
abstract：INTRODUCTION:The effect of endodontic involvement on tooth loss has not been quantified, so the present study aimed to assess this relationship after controlling for other relevant risk factors for tooth loss. METHODS:We analyzed data from 791 participants (18,798 teeth) in the Veterans Affairs Dental Longitudinal Stu...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.08.051
更新日期：2010-12-01 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 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：:This case-control study sought to identify variables predictive of subsequent root canal therapy (RCT) in teeth receiving full coverage restorations. The University of North Carolina School of Dentistry's computerized treatment database was used to identify all patients receiving a single-unit crown on a nonendodontic...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.11.001
更新日期：2006-08-01 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：:There have been major recent reorganizations among bacterial taxa as a result of phylogenetic taxonomic approaches. As a consequence, old species have been renamed and novel species have been proposed. The introduction of molecular technology for microbial identification has also allowed the detection of microbial tax...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1097/00004770-200310000-00001
更新日期：2003-10-01 00:00:00
abstract：:In this study, cell reaction after exposure to several dental cements was determined using a dentin barrier test device. The reaction of mouse fibroblasts grown on the "pulpal" side of a bovine dentin disk was determined after exposure to dental cements applied on the "cavity" side of the disk. For pretreatment, denti...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(96)80285-8
更新日期：1996-03-01 00:00:00
abstract：:Dentin permeability and hypersensitivity are both reduced when the dentinal tubules are occluded. Previous scanning electron microscopic studies showed that Nd:YAG laser could cause melting of dentin and closure of exposed dentinal tubules without dentin surface cracking. Therefore, the aim of the present study was to...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80403-7
更新日期：1997-11-01 00:00:00
abstract：:The 4- to 6-yr outcome of initial (first-time) endodontic treatment was assessed for Phase II of the "Toronto Study." In total, 442 teeth were treated by using flared preparation and vertical compaction of warm gutta-percha or step-back preparation and lateral compaction. With 126 teeth excluded (discontinuers: deceas...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200405000-00002
更新日期：2004-05-01 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：:The water sorption and solubility characteristics of three contemporary methacrylate resin-based endodontic sealers, EndoREZ, Epiphany, and InnoEndo, were compared with those obtained from Kerr EWT, Ketac-Endo (positive control), GuttaFlow, and AH Plus (both negative controls). Ten disks of each material were dehydrat...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.03.021
更新日期：2007-08-01 00:00:00
abstract：INTRODUCTION:This study evaluated the success rate of and tooth substance removal required for computer-guided preparation of endodontic access cavities. METHODS:Thirty acrylic typodont teeth with root canals (10 each of tooth numbers 11, 14, and 17) were randomly allocated to a study or control group (15 teeth per gr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.10.025
更新日期：2021-02-01 00:00:00
abstract：:The inferior alveolar nerve is sometimes affected by periapical pathoses and mandibular cysts. However, mandibular intraosseous lesions have not been reported to disturb the lingual nerve. A case of simultaneous paresthesia of the right lingual nerve and the right inferior alveolar nerve is presented. The possible mec...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000158011.64829.7b
更新日期：2005-10-01 00:00:00
abstract：INTRODUCTION:Enterococcus faecalis is frequently recovered from root-filled teeth with refractory apical periodontitis. The ability of E. faecalis to form a matrix-encased biofilm contributes to its pathogenicity; however, the role of extracellular dextran and DNA in biofilm formation and its effect on the susceptibili...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.04.007
更新日期：2012-07-01 00:00:00
abstract：INTRODUCTION:Stabilizing sodium hypochlorite (NaOCl) at an alkaline pH is proposed to increase solution stability and tissue dissolution ability; however, a reduction on the flexural strength of dentin discs has been found to be a side effect. This study sought to determine whether a stabilized alkaline NaOCl reduces t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.02.028
更新日期：2014-10-01 00:00:00
abstract：:Primary intraosseous salivary gland tumors are rare, with mucopidermoid carcinoma being the most frequent histotype. The authors present a case of adenoid cystic carcinoma, located in the mandibular incisor region, associated with pain. Endodontic treatment resulted in increased pain and progressive mandibular expansi...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200012000-00026
更新日期：2000-12-01 00:00:00
abstract：:The purpose of treating furcal perforation is to seal the artificial communication between the endodontic space and the periradicular tissue to prevent alveolar bone resorption and damage to the periodontal ligament. These complications are not infrequent in cases of furcal and/or old perforations, which show a worse ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2008.05.019
更新日期：2008-09-01 00:00:00
abstract：INTRODUCTION:Communication between pulp and periodontal tissue has been well established. However, it is unknown when periodontal disease begins to affect the clinical response of pulp tissue. The aim of this study was to assess the influence of periodontal severity on pulp sensibility by means of electric and thermal ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.07.006
更新日期：2017-11-01 00:00:00
