Stress Analyses of Retrograde Cavity Preparation Designs for Surgical Endodontics in the Mesial Root of the Mandibular Molar: A Finite Element Analysis-Part II.

abstract：:The cross-sectional configuration of seven files at coronal and apical levels were compared with diagrams presented by manufacturers. The presence of cutting edges was also examined. Ground-twisted (K-file, K-Reamer, and K-flex) and machined files (Flex-R, Unifile, S-file, and Hedstrom) were included in #10, #25, and ...

journal_title：Journal of endodontics

authors： D'Souza JE,Walton RE,Maixner D

更新日期：1995-12-01 00:00:00

abstract：:The oral region comprises 1% of the total body area, yet it accounts for 5% of all bodily injuries. In preschool children, oral injuries make up as much as 17% of all bodily injuries. The incidence of traumatic dental injuries is 1%-3%, and the prevalence is steady at 20%-30%. The annual cost of treatment is US $2-$5 ...

journal_title：Journal of endodontics

authors： Andersson L

更新日期：2013-03-01 00:00:00

abstract：:A descriptive, cross sectional survey was developed to determine the preferences of endodontists when prescribing analgesics. Eleven clinical scenarios describing common endodontic diagnoses or procedures with specified severity of pain were provided. A survey was sent to 310 AAE members and 63 responded, providing a ...

journal_title：Journal of endodontics

authors： Mickel AK,Wright AP,Chogle S,Jones JJ,Kantorovich I,Curd F

更新日期：2006-12-01 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

authors： Miranda TT,Vianna CR,Rodrigues L,Rosa CA,Corrêa A Jr

更新日期：2015-06-01 00:00:00

abstract：INTRODUCTION:Sphingosine-1-phosphate receptor 1 (S1P1) is crucial for regulation of immunity and bone metabolism. This study aimed to investigate the expression of S1P1 in rat periapical lesions and its relationship with receptor activator of nuclear factor kappa B ligand (RANKL) and regulatory T (Treg) cells. METHODS...

journal_title：Journal of endodontics

authors： Xiao L,Zhu L,Yang S,Lei D,Xiao Y,Peng B

更新日期：2015-04-01 00:00:00

abstract：:This study investigated the possibility of saliva recontamination occurring between the root canal wall and sealer through dentinal tubules exposed after the cementum was removed at the cervical level by root planing and treatment with citric acid. Thirty-four extracted human maxillary anterior teeth were randomly pla...

journal_title：Journal of endodontics

authors： Berutti E

更新日期：1996-11-01 00:00:00

abstract：:Ten extracted human maxillary first molars were selected with a variety of root curvatures. The distofacial roots were resected and the mesiofacial canals were instrumented to a size #25 K file. Three techniques were used to introduce Ca(OH)2 paste into the instrumented canals. These techniques were evaluated for thei...

journal_title：Journal of endodontics

authors： Sigurdsson A,Stancill R,Madison S

更新日期：1992-08-01 00:00:00

abstract：INTRODUCTION:This study evaluated the biocompatibility of 5 and 10 μg/mL LL-37 in vitro and its effect on the differentiation of human dental pulp stem cells (DPSCs) into odontoblast-like cells. METHODS:Cell viability, genotoxicity, nitric oxide production, cell cycle, dentine sialophosphoprotein (DSPP) production, an...

journal_title：Journal of endodontics

authors： Milhan NVM,de Barros PP,de Lima Zutin EA,de Oliveira FE,Camargo CHR,Camargo SEA

更新日期：2017-12-01 00:00:00

abstract：:The purpose of this study was to compare the wicking propensity of multifilament sutures. Dexon II, Vicryl, and black silk suture (BSS) were dipped in saline or soaked for 48 h, then suspended on a microscope slide. Fluorescein isothiocyanate-dextran (FITC-D) was placed at the suture mid points, and its movement was o...

journal_title：Journal of endodontics

authors： Grigg TR,Liewehr FR,Patton WR,Buxton TB,McPherson JC

更新日期：2004-09-01 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

authors： Rao Q,Kuang J,Mao C,Dai J,Hu L,Lei Z,Song G,Yuan G

更新日期：2020-03-01 00:00:00

abstract：INTRODUCTION:This study aimed to evaluate the precision of electronic apex locators (EALs) in locating the apical constriction (AC) during a root canal treatment compared with a histologic evaluation of the AC as well as the effects of possible influencing factors by means of a systematic review of the literature and m...

journal_title：Journal of endodontics

authors： Tsesis I,Blazer T,Ben-Izhack G,Taschieri S,Del Fabbro M,Corbella S,Rosen E

更新日期：2015-11-01 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

authors： Han GY,Park SH,Yoon TC

更新日期：2001-05-01 00:00:00

abstract：:This study highlighted the characteristics and distribution of cracked tooth syndrome (CTS) and the associated factors in adult attendees in the University of Nigeria Teaching Hospital. Three hundred seventy patients aged 18 years to 77 years with CTS-like conditions were included and studied over 12 months. The follo...

journal_title：Journal of endodontics

authors： Udoye CI,Jafarzadeh H

更新日期：2009-03-01 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

authors： Schmalz G,Schweikl H,Esch J,Hiller KA

更新日期：1996-03-01 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

authors： JOE Editorial Board.

更新日期：2008-05-01 00:00:00

abstract：INTRODUCTION:The morphogenic complexities of dens invaginatus (DI) Oehlers type 3 in maxillary canines offer significant endodontic challenges. METHODS:A case report is provided of a 14-year-old female patient who presented with an anomalous-looking permanent maxillary canine associated with a sinus tract. Pulp testin...

journal_title：Journal of endodontics

authors： Brooks JK,Ribera MJ

更新日期：2014-10-01 00:00:00

abstract：:Non-surgical endodontic treatment represents a cornerstone of contemporary endodontic care. Reflecting the central importance of this therapy, there is a high number of studies that address issues related to this treatment. Unfortunately, many of these studies are preclinical "bench top" studies with largely undefined...

journal_title：Journal of endodontics

authors：

更新日期：2009-08-01 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

authors： Santiago CN,Pinto SS,Sassone LM,Hirata R Jr,Fidel SR

更新日期：2015-09-01 00:00:00

abstract：:The bond strength of ActiV GP root canal filling system and gutta-percha/AH plus sealer when used after final rinse with different irrigation protocols was evaluated in this study. Forty roots were randomly divided into four groups (n = 10) according to the final irrigation regimen: group 1, 5 mL 17% EDTA; group 2, 5 ...

journal_title：Journal of endodontics

authors： Hashem AA,Ghoneim AG,Lutfy RA,Fouda MY

更新日期：2009-04-01 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

authors： Simon JH,Dogan H,Ceresa LM,Silver GK

更新日期：2000-05-01 00:00:00

abstract：:The aim of this study was to assess the cytotoxicity of pure eugenol in an in vitro method by diluting it to various concentrations in alcohol and determining the maximum noncytotoxic concentration. We used solutions of eugenol and ethyl alcohol that are soluble in water in any given proportion. The cytotoxicity of th...

journal_title：Journal of endodontics

authors： Gerosa R,Borin M,Menegazzi G,Puttini M,Cavalleri G

更新日期：1996-10-01 00:00:00

abstract：INTRODUCTION:Experimental studies show that dental pulp cells respond unfavorably to contact with resin composite restorative material. Hypothetically, in a random population, the frequency of apical periodontitis should be higher for teeth restored with resin composite than with amalgam. Therefore, the aim was to comp...

journal_title：Journal of endodontics

authors： Dawson V,Petersson K,Wolf E,Akerman S

更新日期：2014-09-01 00:00:00

abstract：:The finite element method was used to compare stresses along the inner canal wall in four two-dimensional models of an average maxillary central incisor. The four models evaluated were an intact incisor, an endodontically treated incisor, an endodontically treated crown-restored incisor, and a cylindrical post and cro...

journal_title：Journal of endodontics

authors： Cailleteau JG,Rieger MR,Akin JE

更新日期：1992-11-01 00:00:00

abstract：INTRODUCTION:Hydrogen peroxide tooth bleaching is claimed to cause alterations in dental tissue structures. This study investigated the influence of the number of bleaching sessions on pulp tissue in rats. METHODS:Male Wistar rats were studied in 5 groups (groups 1S-5S) of 10 each, which differed by the number (1-5) o...

journal_title：Journal of endodontics

authors： Cintra LT,Benetti F,da Silva Facundo AC,Ferreira LL,Gomes-Filho JE,Ervolino E,Rahal V,Briso AL

更新日期：2013-12-01 00:00:00

abstract：:Mineral Trioxide Aggregate (MTA) has been shown in a number of experiments to be a potential root-end filling material. The purpose of this study was to examine the periradicular tissue response of monkeys to MTA and amalgam as root-end fillings. The pulps were removed from all the maxillary incisors of three monkeys....

journal_title：Journal of endodontics

authors： Torabinejad M,Pitt Ford TR,McKendry DJ,Abedi HR,Miller DA,Kariyawasam SP

更新日期：1997-04-01 00:00:00

abstract：INTRODUCTION:Prilocaine plain has a high pH and concentration (4%), which could decrease the pain of injection and increase success. The purpose of this study was to compare pain associated with anesthetic solution deposition and the degree of pulpal anesthesia obtained with the combination of prilocaine and lidocaine ...

journal_title：Journal of endodontics

authors： Cook O,Nusstein J,Drum M,Fowler S,Reader A,Draper J

更新日期：2018-05-01 00:00:00

abstract：INTRODUCTION:This study evaluated 4 different light-emitting diode (LED) transilluminators and the impact of operator experience in the detection of dentinal defects through an ex vivo TRUEJAW surgical model (Dental Engineering Laboratories, Santa Barbara, CA). METHODS:Forty-four extracted and endodontically treated m...

journal_title：Journal of endodontics

authors： Arnarsdottir EK,Karunanayake GA,Pettit NE,Phillips C,Saemundsson SR,Tawil PZ

更新日期：2020-02-01 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

authors： Tagelsir A,Yassen GH,Gomez GF,Gregory RL

更新日期：2016-02-01 00:00:00

abstract：:A lack of agreement exists in the literature regarding the anatomical relationship of the mandibular canal to its surrounding structures such as the root apices. The purpose of this investigation was to study the spatial relationship of the mandibular canal to the posterior teeth in dried human mandibles. Twenty-two m...

journal_title：Journal of endodontics

authors： Denio D,Torabinejad M,Bakland LK

更新日期：1992-04-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to evaluate and compare the volume of removed dentin, transportation, and centering ability of ProTaper Next (PTN) system with and without glide path preparation by using cone-beam computed tomography (CBCT) imaging. METHODS:Sixty mesiobuccal canals of mandibular first molars...

journal_title：Journal of endodontics

authors： Elnaghy AM,Elsaka SE

更新日期：2014-12-01 00:00:00