Lack of causal relationship between dentinal microcracks and root canal preparation with reciprocation systems.

Abstract:

INTRODUCTION:This study aimed to evaluate the frequency of dentinal microcracks observed after root canal preparation with 2 reciprocating and a conventional full-sequence rotary system using micro-computed tomographic analysis. METHODS:Thirty mesial roots of mandibular molars presenting a type II Vertucci canal configuration were scanned at an isotropic resolution of 14.16 μm. The sample was randomly assigned to 3 experimental groups (n = 10) according to the system used for the root canal preparation: group A-Reciproc (VDW, Munich, Germany), group B-WaveOne (Dentsply Maillefer, Baillagues, Switzerland), and group C-BioRaCe (FKG Dentaire, La-Chaux-de-Fonds, Switzerland). Second and third scans were taken after the root canals were prepared with instruments sizes 25 and 40, respectively. Then, pre- and postoperative cross-section images of the roots (N = 65,340) were screened to identify the presence of dentinal defects. RESULTS:Dentinal microcracks were observed in 8.72% (n = 5697), 11.01% (n = 7197), and 7.91% (n = 5169) of the cross-sections from groups A (Reciproc), B (WaveOne), and C (BioRaCe), respectively. All dentinal defects identified in the postoperative cross-sections were also observed in the corresponding preoperative images. CONCLUSIONS:No causal relationship between dentinal microcrack formation and canal preparation procedures with Reciproc, WaveOne, and BioRaCe systems was observed.

journal_name

J Endod

journal_title

Journal of endodontics

authors

De-Deus G,Silva EJ,Marins J,Souza E,Neves Ade A,Gonçalves Belladonna F,Alves H,Lopes RT,Versiani MA

doi

10.1016/j.joen.2014.02.019

subject

Has Abstract

pub_date

2014-09-01 00:00:00

pages

1447-50

issue

9

eissn

0099-2399

issn

1878-3554

pii

S0099-2399(14)00195-2

journal_volume

40

pub_type

杂志文章
  • Effect of Glide Path Creating on Cyclic Fatigue Resistance of Reciproc and Reciproc Blue Nickel-titanium Files: A Laboratory Study.

    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 Re...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2018.03.004

    authors: Özyürek T,Uslu G,Yılmaz K,Gündoğar M

    更新日期:2018-06-01 00:00:00

  • Diabetes mellitus and the dental pulp.

    abstract::This study attempts to evaluate the oral manifestations of and the limited available dental pulp information on diabetes mellitus, a common metabolic disorder of carbohydrate and lipid metabolism affecting over 16 million Americans. Diabetics are particularly prone to bacterial or opportunistic infections. This vulner...

    journal_title:Journal of endodontics

    pub_type: 杂志文章,评审

    doi:10.1097/00004770-200306000-00001

    authors: Bender IB,Bender AB

    更新日期:2003-06-01 00:00:00

  • Effect of tissue fluids on hydrophobicity and adherence of Enterococcus faecalis to dentin.

    abstract::This in vitro study was carried out to determine (1) the hydrophobicity of selected oral bacteria, (2) the influence of growth media (saliva and serum) and mode of growth (planktonic or biofilm) on the hydrophobicity of Enterococcus faecalis, and (3) the influence of growth media and conditioning fluids on the adheren...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2007.07.035

    authors: George S,Kishen A

    更新日期:2007-12-01 00:00:00

  • Redemption of a perforated furcation with a multidisciplinary treatment approach.

    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

    authors: Goon WW,Lundergan WP

    更新日期:1995-11-01 00:00:00

  • Effect of EDTA and citric acid solutions on the microhardness and the roughness of human root canal dentin.

    abstract::The purpose of this study was to evaluate the effect of citric acid and EDTA solutions on the microhardness and the roughness of human root canal dentin. Forty-five human teeth sectioned longitudinally were used. Specimens were randomly divided into three groups of 30 teeth each and were treated as follows: (a) one mo...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1097/01.don.0000136212.53475.ad

    authors: Eldeniz AU,Erdemir A,Belli S

    更新日期:2005-02-01 00:00:00

  • Dissolution of nickel-titanium endodontic files via an electrochemical process: a new concept for future retrieval of fractured files in root canals.

    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

    authors: Ormiga F,da Cunha Ponciano Gomes JA,de Araújo MC

    更新日期:2010-04-01 00:00:00

  • Comparison of two different direct digital radiography systems for the ability to detect artificially prepared periapical lesions.

    abstract::The purpose of this study was to compare Schick CDR and Trophy RVGui direct digital radiography (DDR) systems for the ability to detect periapical lesions in human cadaver mandibles. Digital radiographs were exposed of teeth with normal periapical areas and of teeth with artificially prepared periapical lesions using ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1097/01.don.0000140571.23012.ff

    authors: Folk RB,Thorpe JR,McClanahan SB,Johnson JD,Strother JM

    更新日期:2005-04-01 00:00:00

  • An evaluation of 2% lidocaine with different concentrations of epinephrine for inferior alveolar nerve block.

    abstract::The purpose of this study was to compare the degree of anesthesia obtained with 2% lidocaine with three different concentrations of epinephrine for inferior alveolar nerve block. Using a repeated measures design, 30 subjects randomly received an inferior alveolar injection using masked cartridges of each solution at t...

    journal_title:Journal of endodontics

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1016/S0099-2399(97)80271-3

    authors: Dagher FB,Yared GM,Machtou P

    更新日期:1997-03-01 00:00:00

  • Cracked Teeth and Poor Oral Masticatory Habits: A Matched Case-control Study in China.

    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

    authors: Qiao F,Chen M,Hu X,Niu K,Zhang X,Li Y,Wu Z,Shen Z,Wu L

    更新日期:2017-06-01 00:00:00

  • Neuropeptides in dental pulp: the silent protagonists.

    abstract::Dental pulp is a soft mesenchymal tissue densely innervated by afferent (sensory) fibers, sympathetic fibers, and parasympathetic fibers. This complexity in pulp innervation has motivated numerous investigations regarding how these 3 major neuronal systems regulate pulp physiology and pathology. Most of this research ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章,评审

    doi:10.1016/j.joen.2008.03.010

    authors: Caviedes-Bucheli J,Muñoz HR,Azuero-Holguín MM,Ulate E

    更新日期:2008-07-01 00:00:00

  • Susceptibilities of Enterococcus faecalis biofilms to some antimicrobial medications.

    abstract::Enterococcus faecalis has been suggested to be an important etiological agent in endodontic failures. The purpose of this study was to evaluate the effectiveness of chlorhexidine- or antibiotics-based medications in eliminating E. faecalis biofilms. One-day and three-day biofilms of E. faecalis were induced on cellulo...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1097/00004770-200110000-00004

    authors: Lima KC,Fava LR,Siqueira JF Jr

    更新日期:2001-10-01 00:00:00

  • The radicular groove: its potential clinical significance.

    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

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

    更新日期:2000-05-01 00:00:00

  • Survival rate and fracture strength of incisors restored with different post and core systems and endodontically treated incisors without coronoradicular reinforcement.

    abstract::This in vitro study evaluated the survival rate and fracture resistance of maxillary central incisors restored with different post and core systems. The post and core systems investigated were a prefabricated high precious metal post with cast core (group A), zirconia post with a prefabricated bonded ceramic core (gro...

    journal_title:Journal of endodontics

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00004770-200210000-00008

    authors: Pontius O,Nathanson D,Giordano R,Schilder H,Hutter JW

    更新日期:2002-10-01 00:00:00

  • The quality of ultrasonic root-end preparation: a quantitative study.

    abstract::Ultrasonic root-end preparation techniques have recently been introduced and revolutionized the field of endodontic surgery. The purpose of this study was to compare quantitatively the quality of root-end preparation techniques prepared by a specially designed ultrasonic retrotip with those prepared in a traditional m...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/S0099-2399(98)80152-0

    authors: Lin CP,Chou HG,Kuo JC,Lan WH

    更新日期:1998-10-01 00:00:00

  • Histologic comparison between platelet-rich plasma and blood clot in regenerative endodontic treatment: an animal study.

    abstract:INTRODUCTION:In regenerative endodontic treatment (RET) for immature permanent tooth, better treatment results could be obtained by applying platelet-rich plasma (PRP) as the scaffold rather than the blood clot. The goal of this study was to compare the histologic differences between using PRP and blood clot in RET. M...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2014.03.020

    authors: Zhang DD,Chen X,Bao ZF,Chen M,Ding ZJ,Zhong M

    更新日期:2014-09-01 00:00:00

  • Prevalence and Characteristics of the Maxillary C-shaped Molar.

    abstract:INTRODUCTION:The anatomy of the maxillary C-shaped molar has been the subject of several case reports although no true prevalence research has ever been conducted. The aim of this observational study was to evaluate and characterize the incidence of these morphologies using cone-beam computed tomographic (CBCT) technol...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2015.12.013

    authors: Martins JN,Mata A,Marques D,Anderson C,Caramês J

    更新日期:2016-03-01 00:00:00

  • A comparison of four root canal filling techniques.

    abstract::This study compared the apical seal produced by four obturation techniques. Sixty-four extracted human teeth were prepared and obturated using lateral condensation of gutta-percha that was either unmodified or was dipped in chloroform, eucalyptol, or eucapercha paste. After storage in normal saline and 0.02% azide sol...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/S0099-2399(89)80158-X

    authors: Haas SB,Campbell AD,Hicks ML,Pelleu GB Jr

    更新日期:1989-12-01 00:00:00

  • Viral MicroRNAs Identified in Human Dental Pulp.

    abstract:INTRODUCTION:MicroRNAs (miRs) are a family of noncoding RNAs that regulate gene expression. They are ubiquitous among multicellular eukaryotes and are also encoded by some viruses. Upon infection, viral miRs (vmiRs) can potentially target gene expression in the host and alter the immune response. Although prior studies...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2016.10.006

    authors: Zhong S,Naqvi A,Bair E,Nares S,Khan AA

    更新日期:2017-01-01 00:00:00

  • Failure of endodontic treatment due to a palatal gingival groove in a maxillary lateral incisor with talon cusp and two root canals.

    abstract::A case is presented in which endodontic treatment of a maxillary lateral incisor with a talon cusp and two root canals failed following a mistaken diagnosis. What was first diagnosed as an endodontic lesion was, in all probability, a primary periodontal lesion caused by the advance of bacteria from the gingival crevic...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/S0099-2399(06)81947-3

    authors: Fabra-Campos H

    更新日期:1990-07-01 00:00:00

  • Effect of propolis on human fibroblasts from the pulp and periodontal ligament.

    abstract::Propolis, a flavonoid-rich product of honey comb, exhibits antibacterial and anti-inflammatory properties. In this study, we examined the tolerance of fibroblasts of the periodontal ligament (PDL) and dental pulp to propolis and compared with that of calcium hydroxide in vitro. Cells from human dental pulp and PDL wer...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1097/00004770-200405000-00012

    authors: Al-Shaher A,Wallace J,Agarwal S,Bretz W,Baugh D

    更新日期:2004-05-01 00:00:00

  • Comparison of Canal Transportation and Centering Ability of K-files, ProGlider File, and G-Files: A Micro-Computed Tomography Study of Curved Root Canals.

    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 sca...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2016.04.005

    authors: Paleker F,van der Vyver PJ

    更新日期:2016-07-01 00:00:00

  • Pulp-dentine complex changes and root resorption during intrusive orthodontic tooth movement in patients prescribed nabumetone.

    abstract::Pulpitis, external root resorption, and pain may be experienced during orthodontic movement. The use of nonsteroidal anti-inflammatory drugs (NSAIDs) has been suggested to control these changes. The purpose of this study was to observe pulp-dentinal reactions, root resorption, tooth pain, and tooth movement after the ...

    journal_title:Journal of endodontics

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/01.don.0000134212.20525.74

    authors: Villa PA,Oberti G,Moncada CA,Vasseur O,Jaramillo A,Tobón D,Agudelo JA

    更新日期:2005-01-01 00:00:00

  • The cracked tooth: histopathologic and histobacteriologic aspects.

    abstract:INTRODUCTION:The diagnosis and treatment planning of cracked teeth depend on the understanding of how cracks affect the surrounding tissues. This study evaluated the dentin and pulp conditions in teeth affected by cracks and attrition. METHODS:Specimens under investigation included 12 cracked posterior teeth and 8 tee...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2014.09.021

    authors: Ricucci D,Siqueira JF Jr,Loghin S,Berman LH

    更新日期:2015-03-01 00:00:00

  • Translational opportunities in stem cell-based endodontic therapy: where are we and what are we missing?

    abstract::Pulp regeneration is a biologic process occurring under specific circumstances. An endodontic treatment modality to accomplish pulp regeneration has emerged based on the response of undifferentiated cells that are often referred to as stem cells. The treatment itself is currently empirical based on clinicians' thought...

    journal_title:Journal of endodontics

    pub_type: 杂志文章,评审

    doi:10.1016/j.joen.2014.01.017

    authors: Peters OA

    更新日期:2014-04-01 00:00:00

  • Characteristics and dimensions of the Schneiderian membrane and apical bone in maxillary molars referred for apical surgery: a comparative radiographic analysis using limited cone beam computed tomography.

    abstract:INTRODUCTION:The purpose of the present study was to evaluate the thickness and the anatomic characteristics of the Schneiderian membrane and cortical bone using limited cone beam computed tomography (CBCT) scannning in patients referred for planning of apical surgery of maxillary molars. METHODS:This controlled study...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2011.09.023

    authors: Bornstein MM,Wasmer J,Sendi P,Janner SF,Buser D,von Arx T

    更新日期:2012-01-01 00:00:00

  • Biological evaluation of collagen gels containing calcium hydroxide and hydroxyapatite.

    abstract::Dentinal chips and different biocompatible materials have been used in the past as apical plugs to enhance healing and simplify obturation. The purpose of this study was to evaluate bone reactions to implants of hydroxyapatite, collagen, and calcium hydroxide, alone or in different combinations. The materials were imp...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/s0099-2399(07)80175-0

    authors: Pissiotis E,Spangberg LS

    更新日期:1990-10-01 00:00:00

  • Anti-inflammatory and Osteogenic Effects of Calcium Silicate-based Root Canal Sealers.

    abstract:INTRODUCTION:An ideal root canal sealer creates a bacteria-resistant seal and exhibits antimicrobial activity, biocompatibility, and osteoconductivity. The aim of this study was to assess the effects of 3 root canal sealers on cell viability, inflammatory response, and osteogenic potential in MC3T3-E1 cells. METHODS:A...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2018.09.006

    authors: Lee BN,Hong JU,Kim SM,Jang JH,Chang HS,Hwang YC,Hwang IN,Oh WM

    更新日期:2019-01-01 00:00:00

  • Removal of Calcium Hydroxide from Artificial Grooves in Straight Root Canals: Sonic Activation Using EDDY Versus Passive Ultrasonic Irrigation and XPendo Finisher.

    abstract:INTRODUCTION:The aim of the present study was to compare sonic activation using EDDY (VDW, Munich, Germany), passive ultrasonic irrigation (PUI), and mechanical activation using the XPendo Finisher (FKG Dentaire, La Chaux-des-Fonds, Switzerland) for the removal of calcium hydroxide from artificial grooves in straight r...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2018.11.001

    authors: Donnermeyer D,Wyrsch H,Bürklein S,Schäfer E

    更新日期:2019-03-01 00:00:00

  • The role of environmental changes on monospecies biofilm formation on root canal wall by Enterococcus faecalis.

    abstract::Biofilm mode of growth is a strategy in microorganisms to survive harsh growth conditions. Although previous studies have established the ability of Enterococcus faecalis to survive postendodontic environmental conditions, the effect of such conditions on the ultrastructural and physiochemical features of E. faecalis ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1097/01.don.0000164855.98346.fc

    authors: George S,Kishen A,Song KP

    更新日期:2005-12-01 00:00:00

  • Complement C3a Mobilizes Dental Pulp Stem Cells and Specifically Guides Pulp Fibroblast Recruitment.

    abstract:INTRODUCTION:Complement activation is considered a major mechanism in innate immunity. Although it is mainly involved in initiating inflammation, recent data reported its involvement in other processes such as tissue regeneration. In the dental pulp, complement C5a fragment has been shown to be involved in the recruitm...

    journal_title:Journal of endodontics

    pub_type: 杂志文章

    doi:10.1016/j.joen.2016.06.011

    authors: Rufas P,Jeanneau C,Rombouts C,Laurent P,About I

    更新日期:2016-09-01 00:00:00