Abstract：
INTRODUCTION:The purpose of this study was to compare centering ability and apical canal transportation of K-files (KF), ProGlider (PG), and G-Files (GF) after glide path enlargement in curved canals by using micro-computed tomography. METHODS:Thirty canals each were randomly assigned to KF, GF, and PG. Teeth were scanned before and after glide path enlargement to compare centering ability at 3 levels: 1 mm (D1) and 7 mm (D7) from the apical foramen and at the point of maximum root curvature (Dmc). Transportation was assessed in 8 directions at D1. RESULTS:KF were significantly less centered than both nickel-titanium (NiTi) groups at D1. At Dmc, PG exhibited a significantly more centered enlargement than both GF and KF, which were significantly similar. At D7, PG was significantly more centered than KF, but there were no significant differences between GF and KF or between PG and GF (P < .016). KF exhibited significantly more canal transportation at D1 than the NiTi groups (P < .05). CONCLUSIONS:NiTi files cause less transportation than KF. At D1, KF was less centered than both NiTi files. PG remained more centered at Dmc and D7.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Paleker F,van der Vyver PJdoi
10.1016/j.joen.2016.04.005subject
Has Abstractpub_date
2016-07-01 00:00:00pages
1105-9issue
7eissn
0099-2399issn
1878-3554pii
S0099-2399(16)30133-9journal_volume
42pub_type
杂志文章abstract：INTRODUCTION:The aim of this study was to evaluate the kinematics of 2 reciprocating motors and compare it with manufacturers' declared values. METHODS:VDW Silver (VDW, Munich, Germany) and ATR Tecnika (Tecnika, Pistoia, Italy) were used in the study in 5 working modes: continuous rotation at 400 rpm on VDW Silver and...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.12.008
更新日期：2014-07-01 00:00:00
abstract：INTRODUCTION:Buffered local anesthetics have not been studied for incision and drainage procedures in dentistry. The purpose of this prospective, randomized, double-blind study was to compare the pain of infiltration and pain of an incision and drainage procedure by using a buffered versus a nonbuffered 2% lidocaine wi...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2013.07.008
更新日期：2013-11-01 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：:The most striking disadvantage of most apex locators is that if there are electrolytes in the canal the meter shows a reading which is too short or sometimes the measurement itself becomes impossible. To overcome this drawback, a new concept for electrically measuring the root canal length has been developed. The devi...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80053-1
更新日期：1994-03-01 00:00:00
abstract：INTRODUCTION:An evaluation was made of the connective tissue reaction in rats after subcutaneous implantation of methacrylate resin-based sealers (EndoREZ [Ultradent Products, Inc, South Jordan, UT] with a polymerization accelerator and RealSeal [Sybron Dental Specialties, Orange, CA]) and Pulp Canal Sealer (Sybron Den...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.06.019
更新日期：2010-09-01 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：:In this study, we examined the effects of TNF-alpha on Bone morphogenetic protein (BMP-2), Smads (which play intracellular signaling of BMPs) expression and alkaline phosphatase (ALP) activity of human dental pulp (HDP) cells to clarify the mechanism of tertiary dentin formation. The quantity of RT-PCR product for BMP...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.12.007
更新日期：2006-06-01 00:00:00
abstract：:The cytotoxicity against two mesenchymal cell lines, L-929 and WI-38, and two epithelial cell lines, KB and HeLa S-3, of lipopolysaccharide (LPS) purified from strains of Bacteroides gingivalis, Fusobacterium nucleatum, and Veillonella parvula isolated from infected root canals was investigated. The inhibition of cell...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(89)80195-5
更新日期：1989-11-01 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：INTRODUCTION:The aim of this study was to assess, by scanning electron microscopic (SEM) analysis, the ability of 17% EDTA and 7% maleic acid in the removal of the smear layer from the human root canal system. METHODS:Eighty single-rooted human anterior teeth were subjected to standardized root canal instrumentation (...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2009.07.021
更新日期：2009-11-01 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:Real-time assessment of the microbial status of the root canal system would be useful in clinical endodontic practice for determining endpoints of biomechanical treatment. This laboratory study used an existing laser fluorescence device, the DIAGNOdent (KaVo, Biberach, Germany), in a proof-of-concept study...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.07.006
更新日期：2009-10-01 00:00:00
abstract：INTRODUCTION:We performed a micro-computed tomographic assessment of the preparation of moderately single- and double-curved root canals using 3 single-file reciprocating nickel-titanium systems: S1 Plus Standard (Sendoline, Täby, Sweden), WaveOne Gold Primary (Dentsply Sirona, Ballaigues, Switzerland), and Reciproc R2...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2020.05.005
更新日期：2020-08-01 00:00:00
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 repor...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/s0099-2399(06)81679-1
更新日期：1990-05-01 00:00:00
abstract：:In the present study, we investigated the effect of the addition of different grades of gum rosins and hydrogenated resins to Grossman cement on dimensional stability, solubility and disintegration. pH and conductivity, which may affect these properties, were also determined. The experiments were performed according t...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(99)80284-2
更新日期：1999-07-01 00:00:00
abstract：:The purpose of this investigation was twofold: (1) to search for clinical articles pertaining to success and failure of periapical surgery and (2) to assign levels of evidence to these studies except case reports. Electronic and manual searches were conducted to identify all the literature regarding success and failur...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1097/01.don.0000133158.35394.8a
更新日期：2005-01-01 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：: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：:Removing posts from root canals prior to endodontic retreatment is often a challenge. The Gonon post removing system (Thomas Extracteur De Pivots; FFDM-Pneumat, Bourges, France) is safe and efficient and can be used for anterior, bicuspid, and even molar teeth. The Gonon system is illustrated with one clinical case. ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(89)80200-6
更新日期：1989-11-01 00:00:00
abstract：:This study compared the effect of two drills and five cleaning regimens on post space debridement. One hundred extracted premolars were instrumented and obturated with warm vertical compaction of gutta percha. The teeth were divided into two groups according to the drill used to remove gutta percha/sealer and for post...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.10.019
更新日期：2008-01-01 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：:The purpose of the study was to evaluate the biocompatibility of two current adhesive resins and a calcium hydroxide cement. Fifty-four polyethylene tubes were filled with these dental materials, which were hand-mixed or light-cured according to the manufacturer's directions: group 1--Clearfill Liner Bond 2 (Kuraray);...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200009000-00006
更新日期：2000-09-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to compare the efficacy of passive ultrasonic irrigation (PUI) and the EndoVac (EV) System (Discus Dental, Culver City, CA) in hard tissue debris removal and its influence on the quality of the root canal filling with the aid of micro-computed tomographic scanner. METHODS:Twenty-...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.05.001
更新日期：2015-10-01 00:00:00
abstract：:This in vitro study evaluated the microbial leakage of Cavit, IRM, and Dyract when used as temporary filling materials after root canal treatment. The degree of coronal leakage was assessed by using a microbiological marker consisting of Streptococcus faecalis and Candida albicans. For each of the two organisms, a set...
journal_title：Journal of endodontics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00004770-200211000-00004
更新日期：2002-11-01 00:00:00
abstract：:The purpose of this survey was to investigate the frequency and characteristics of surgery among active endodontists in the United States. The survey also inquired about residency and postresidency training in endodontic surgery. A Web-based questionnaire regarding endodontic surgery was distributed via e-mail to 2,53...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2008.10.008
更新日期：2009-01-01 00:00:00
abstract：INTRODUCTION:The purpose of this in-depth investigation was to identify, clarify, and substantiate clinical terminology relative to apical/periapical/periradicular diagnostic states, which is used routinely in the provision of endodontic care. Furthermore, the information gleaned from this investigation was used to lin...
journal_title：Journal of endodontics
pub_type： 共识发展会议,杂志文章
doi：10.1016/j.joen.2009.09.028
更新日期：2009-12-01 00:00:00
abstract：:The purpose of this study was to evaluate the influence of Hero 642 rotary Ni-Ti instruments driven at 300, 400, or 600 rpm on root canal straightening, loss of working length, and instrument breakage. Sixty mesial root canals from extracted human mandibular molars were divided into 3 groups of 20 each and were instru...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200307000-00005
更新日期：2003-07-01 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:Proteinases play pivotal roles in Candida albicans infections. Although the yeast can colonize the pulpal environment, there is no information about the enzymatic profile of this organism. This in vitro study aimed to determine the proteolysis levels and to investigate differences in the expression of aspa...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.01.012
更新日期：2015-06-01 00:00:00
abstract：:To date there has been very little data on the cytotoxic response of different cell lines to root canal sealers. The objective of this study was to determine the cytocompatibility of three different extracts of root canal sealers and to compare the cytotoxic response of these materials on two different primary human o...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200109000-00004
更新日期：2001-09-01 00:00:00
