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 Reciproc and Reciproc Blue groups were divided into 3 subgroups (ie, as received condition, used without a glide path, and used with a glide path). All the instruments were rotated in a stainless steel artificial canal with an inner diameter of 1.5 mm, a 60° angle of curvature, and a radius of curvature of 5 mm until fracture occurred. The number of cycle to fracture was calculated, and the length of the fractured segments was measured. The Kruskal-Wallis test was performed to statistically analyze the data using SPSS 21.0 software (IBM Corp, Armonk, NY) at a 5% significance level. RESULTS:The cyclic fatigue resistance of as received condition Reciproc Blue files was found to be higher than as received condition Reciproc files (P < .05). Reciproc Blue files used for root canal preparation showed higher cyclic fatigue resistance than Reciproc files used for root canal preparation (P < .05). There was no statistically significant difference between Reciproc and Reciproc Blue files used with a glide path and without a glide path (P > .05). There was no statistically significant difference in the mean length of the fractured fragments of the instruments (P > .05). CONCLUSIONS:Within the limitations of this in vitro study, it was concluded that creating a glide path using ProGlider files had no effect on the cyclic fatigue resistance of RPC and RPC Blue files.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Özyürek T,Uslu G,Yılmaz K,Gündoğar Mdoi
10.1016/j.joen.2018.03.004subject
Has Abstractpub_date
2018-06-01 00:00:00pages
1033-1037issue
6eissn
0099-2399issn
1878-3554pii
S0099-2399(18)30166-3journal_volume
44pub_type
杂志文章abstract::In the rat, perforations of maxillary molars were created and treated with either tricalcium phosphate (Synthograft) or Cavit. At four time intervals (1 day, 1 wk, 2 wk, and 1 month), four evaluative factors (inflammation, bone resorption, cementum and dentin resorption, and epithelial proliferation) were analyzed and...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/s0099-2399(89)80171-2
更新日期:1989-09-01 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.2007.11.007
更新日期:2008-05-01 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
abstract::Microbial control--fundamental to healing of apical periodontitis--is central to endodontic practice. The effectiveness of antibacterial measures is generally monitored (in clinical research studies) by microbiological root canal sampling (MRS), which is often used as a predictor for healing. This article addresses th...
journal_title:Journal of endodontics
pub_type: 杂志文章,评审
doi:10.1016/j.joen.2006.11.006
更新日期:2007-03-01 00:00:00
abstract:INTRODUCTION:The efficacy of retreatment techniques for BC Sealer (BCS) (Brasseler USA, Savannah, GA) removal has not yet been assessed. The purpose of this study was to evaluate the efficacy of solvent and rotary instrumentation in the removal of BCS when used in combination with gutta-percha (GP) as compared with AH ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2011.08.016
更新日期:2011-11-01 00:00:00
abstract:INTRODUCTION:Long-term predictability of restored endodontically treated teeth is important for the decision of tooth retention versus extraction and implant placement. The purpose of this study was to validate the hypothesis that preoperative factors can predict the long-term prognosis of molars requiring endodontic a...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2010.10.005
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:Two groups of patients with orofacial pains that are clinically important to distinguish from each other are patients with odontogenic pain and temporomandibular disorder (TMD) pain. The aim of this study was to determine the sensitivity and specificity of 2 screening instruments in distinguishing between ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2016.10.001
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Previous studies have suggested that masticatory forces are associated with cracked teeth, but it is not clear which specific poor oral masticatory habits may be more likely to cause cracks. The aim of this study was to quantitatively assess risk factors for cracked teeth among poor oral masticatory habits...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2017.01.007
更新日期:2017-06-01 00:00:00
abstract::The purposes of this study were to determine quantitatively the amount of debris and irrigant forced in an apical direction, the frequency of apical plug development, and the time required to prepare canals when a step-back technique using K-files was compared with the .04 Taper system. Sixty-nine extracted teeth with...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(98)80206-9
更新日期:1998-01-01 00:00:00
abstract::An in vitro, flow-through optical system was designed to measure hemoglobin (Hb) concentrations in the pulp space. The system included light-emitting diodes and a silicon photodetector positioned on opposing surfaces of human teeth. A syringe pump allowed a controlled flow of blood through the pulp chamber. The Hb con...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(96)80230-5
更新日期:1996-01-01 00:00:00
abstract::The aims of this study were to identify microorganisms on the surface of gutta-percha (GP) cones using a polymerase chain reaction (PCR) and to evaluate the sterilization effect of 5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), and ChloraPrep on these bacteria. Alterations of the surface texture and physic...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2007.01.019
更新日期:2007-05-01 00:00:00
abstract::The purpose of this in vitro study was to evaluate quantitatively the ability of four different filling materials to seal the orifices of root canals as a secondary seal after root canal therapy. Forty extracted human molar teeth were used. The top of pulp chambers and distal halves of the roots were removed using an ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1097/00004770-200108000-00006
更新日期:2001-08-01 00:00:00
abstract::The purpose of this study was to compare ultrasonic and high-speed-bur root-end preparations. Seventy-six roots from 29 bilaterally matched pairs of human teeth in cadavers were used in this study. In group 1 ultrasonic preparations were made in 38 roots and filled with amalgam. In group 2 high-speed bur preparations ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/s0099-2399(97)80301-9
更新日期:1997-07-01 00:00:00
abstract::The current external inflammatory root resorption treatment protocol, which uses calcium hydroxide dressing, usually comprises multiple and long-term applications. In addition to the need for multiple appointments for calcium hydroxide replacement, the long-term maintenance of this compound in the root canal weakens d...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2015.03.019
更新日期:2015-09-01 00:00:00
abstract::The diameter of nine sizes of three brands of endodontic spreaders was measured at D1 and D16 and compared with corresponding sizes of six brands of accessory gutta-percha cones. Two evaluators independently measured 20 randomly selected samples of each size of finger spreader and accessory gutta-percha cone. A standa...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(07)80153-1
更新日期:1991-01-01 00:00:00
abstract::This study compared apical transportation produced in curved (45- to 60-degree) molar canals instrumented with two MM-3000 Sonic Air test files (Rispi-Sonic and Trio-Sonic) with apical transportation from instrumentation with conventional K-type files. Seventy-five extracted human permanent mandibular molars were equa...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/s0099-2399(89)80235-3
更新日期:1989-05-01 00:00:00
abstract:INTRODUCTION:Bleeding control is an important aspect in endodontic surgery. Two hemostatic techniques were compared with regard to their efficacy to bleeding control in endodontic surgery. METHODS:A randomized, 2-arm, parallel pilot study involving 30 patients with periradicular lesions was performed including the fol...
journal_title:Journal of endodontics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.joen.2019.04.011
更新日期:2019-08-01 00:00:00
abstract:INTRODUCTION:The purpose of the study was to evaluate the effects of intracanal, intraoral, and extraoral cryotherapy on postoperative pain in molar teeth with symptomatic apical periodontitis. METHODS:A total of 100 patients were randomly distributed into 4 groups: control (without cryotherapy application), intracana...
journal_title:Journal of endodontics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.joen.2017.11.002
更新日期:2018-03-01 00:00:00
abstract:INTRODUCTION:This article reports on the feasibility of conducting a large-scale endodontic prospective cohort study in The National Dental Practice-Based Research Network. This study was designed to measure pain and burden associated with initial orthograde root canal therapy (RCT) and to explore potential prognostic ...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2012.08.002
更新日期:2012-11-01 00:00:00
abstract:INTRODUCTION:Pulp revascularization may be considered a promising alternative for necrotic immature teeth. Many studies have accomplished passive decontamination associated with an antibiotic paste. To date, there is no report evaluating calcium hydroxide associated with 2% chlorhexidine gel for revascularization thera...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2012.10.005
更新日期:2013-03-01 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: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: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::The anatomy of third molars has been described as unpredictable. However restorative, prosthetic, and orthodontic considerations often require endodontic treatment of third molars in order for them to be retained as functional components of the dental arch. The purpose of this study was to investigate and characterize...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1097/00004770-200011000-00011
更新日期:2000-11-01 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:INTRODUCTION:This review aimed to compare the kinematic effect of nickel-titanium instruments with reciprocating and continuous rotation motion for cyclic fatigue resistance, shaping ability, apical debris extrusion, and dentinal defects or cracks. METHOD:Articles were selected for inclusion in this review if they ful...
journal_title:Journal of endodontics
pub_type: 杂志文章,评审
doi:10.1016/j.joen.2016.04.002
更新日期:2016-07-01 00:00:00
abstract:INTRODUCTION:Interferon regulatory factor 8 (IRF8) is a critical transcription factor in innate immune responses that regulates the development and function of myeloid cells. Human periapical lesions are caused by endodontic microbial infections. However, the presence of IRF8 in human periapical lesions remains elusive...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2018.04.015
更新日期:2018-08-01 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::The aim of this study was to investigate the cytotoxic and nitric oxide (NO)-inducing effects of bismuth oxide (Bi(2)O(3))-containing Portland cement (BPC) on human dental pulp cells. We also assessed whether heme oxygenase-1 (HO-1) is involved in BPC-induced cytotoxicity in dental pulp cells. Cytotoxicity and NO prod...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/j.joen.2007.07.012
更新日期:2007-11-01 00:00:00
abstract::A previous study showed that the ferret canine is an appropriate model for inducing periapical lesions. Ferret canines were used in this study to study changes in periapical lesions after root canal treatment (RCT). After periapical pathosis was induced in the maxillary and mandibular canines of six ferrets, RCT was p...
journal_title:Journal of endodontics
pub_type: 杂志文章
doi:10.1016/S0099-2399(06)80506-6
更新日期:1993-03-01 00:00:00