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


: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 manner by a microhandpiece bur. Twenty roots with two canals and an isthmus from extracted maxillary human molars were selected for this study. After instrumentation, obturation, and root-end resection, root-end preparations were made using either an ultrasonic retrotip or a conventional microhandpiece bur. With the aid of the image processing and analysis system, the specimens were inspected under a stereomicroscope for further evaluation of the quality of the shape and size of preparation. The results of this investigation showed that the ultrasonic root-end preparations produced more conservative and less perforated cavities than those made with conventional microhandpiece bur preparations.


J Endod


Journal of endodontics


Lin CP,Chou HG,Kuo JC,Lan WH





Has Abstract


1998-10-01 00:00:00














  • Histologic assessment of mineral trioxide aggregate as a root-end filling in monkeys.

    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

    pub_type: 杂志文章


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

    更新日期:1997-04-01 00:00:00

  • Effect of Repairing Endodontic Access Cavities on Survival of Single Crowns and Retainer Restorations.

    abstract:INTRODUCTION:This retrospective study aimed to analyze the effect of repairing endodontic access cavities with composite on the survival of single crowns and retainer restorations of fixed or removable dental prostheses. METHODS:Dental records of patients attending a university dental clinic were retrospectively scree...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Wiegand A,Kanzow P

    更新日期:2020-03-01 00:00:00

  • Initial in vitro biological response to contemporary endodontic sealers.

    abstract::The objective of this study was to evaluate the cytotoxicity of three endodontic sealers (AH Plus/Maillefer-Dentsply, Epiphany/Pentron, GuttaFlow, Coltene-Whaledent). Materials were mixed according to the manufacturer instructions and packed into Teflon molds (10 x 1 mm). For cytotoxicity testing (MTT method), the spe...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Bouillaguet S,Wataha JC,Tay FR,Brackett MG,Lockwood PE

    更新日期:2006-10-01 00:00:00

  • Expression of Mineralization Markers during Pulp Response to Biodentine and Mineral Trioxide Aggregate.

    abstract:INTRODUCTION:The purpose of this study was to compare the cell viability of dental pulp cells treated with Biodentine (Septodont, Saint-Maur, France) and mineral trioxide aggregate (MTA) and the in vitro and in vivo expression of mineralization markers induced by the 2 materials. METHODS:Human dental pulp cells isolat...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Daltoé MO,Paula-Silva FW,Faccioli LH,Gatón-Hernández PM,De Rossi A,Bezerra Silva LA

    更新日期:2016-04-01 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


    authors: Paleker F,van der Vyver PJ

    更新日期:2016-07-01 00:00:00

  • The walking bleach procedure: an in vitro study to measure microleakage of five temporary sealing agents.

    abstract::The purpose of this study was to compare the in vitro sealing capacity of five materials, each used as a temporary sealing agent for the walking bleach technique. All teeth received traditional biomechanical root canal instrumentation, after which the walking bleach agent was placed in the pulp chamber space. The occl...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Hosoya N,Cox CF,Arai T,Nakamura J

    更新日期:2000-12-01 00:00:00

  • Long-term prognosis of endodontically treated teeth: a retrospective analysis of preoperative factors in molars.

    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


    authors: Setzer FC,Boyer KR,Jeppson JR,Karabucak B,Kim S

    更新日期:2011-01-01 00:00:00

  • 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 confi...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


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

    更新日期:2014-09-01 00:00:00

  • Isolation of methicillin-resistant staphylococci in the dental operatory.

    abstract::The state of contamination by methicillin-resistant Staphylococci, including methicillin-resistant Staphylococcus aureus (MRSA) at the conservative dentistry section of the School of Dentistry, Aichi-Gakuin University, was investigated. Methicillin-resistant coagulase-negative Staphylococci (MRCNS) were detected in 8 ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Horiba N,Yoshida T,Suzuki K,Maekawa Y,Ito M,Matsumoto T,Nakamura H

    更新日期:1995-01-01 00:00:00

  • Comparative evaluation of propolis and triantibiotic mixture as an intracanal medicament against Enterococcus faecalis.

    abstract:INTRODUCTION:The aim of this study was to evaluate and compare the antimicrobial activity of calcium hydroxide, triantibiotic mixture (TAM), and an ethanol extract of propolis as intracanal medicaments on Enterococcus faecalis-infected root canals. METHODS:One hundred twenty extracted intact human permanent incisors w...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Madhubala MM,Srinivasan N,Ahamed S

    更新日期:2011-09-01 00:00:00

  • Bacterial reduction with nickel-titanium rotary instrumentation.

    abstract::The purpose of this study was to compare intracanal bacterial reduction on teeth instrumented with 0.04 tapered nickel-titanium (NiTi) rotary instrumentation to bacterial reduction when using a stainless-steel K-file step-back technique using sterile saline irrigation. Forty-eight patients with apical periodontitis we...

    journal_title:Journal of endodontics

    pub_type: 临床试验,杂志文章,随机对照试验


    authors: Dalton BC,Orstavik D,Phillips C,Pettiette M,Trope M

    更新日期:1998-11-01 00:00:00

  • Depth of penetration of four resin sealers into radicular dentinal tubules: a confocal microscopic study.

    abstract:BACKGROUND:The aim of this in vitro study was to evaluate the depth of penetration of 4 different endodontic resin sealers into the radicular dentinal tubules with the aid of confocal microscopy. METHODS:Eighty single-rooted teeth were instrumented and divided into 4 groups composed of 20 teeth each. The samples were ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Chandra SS,Shankar P,Indira R

    更新日期:2012-10-01 00:00:00

  • Longitudinal Cohort Study of Regenerative Endodontic Treatment for Immature Necrotic Permanent Teeth.

    abstract:INTRODUCTION:The treatment of immature necrotic permanent teeth presents several clinical challenges in endodontics. Regenerative endodontic procedures (REPs) permit root development, increased canal wall thickness, and apical closure. This longitudinal cohort study aimed to evaluate the long-term clinical and radiogra...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Chan EK,Desmeules M,Cielecki M,Dabbagh B,Ferraz Dos Santos B

    更新日期:2017-03-01 00:00:00

  • Treponema species detected in infected root canals and acute apical abscess exudates.

    abstract:INTRODUCTION:Different microbial communities have been associated with acute endodontic infections. The majority of the microorganisms are as yet uncultivable or difficult to grow under current laboratory conditions. Treponema species are strict anaerobic bacteria that are involved in several oral diseases. The aim of ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Montagner F,Jacinto RC,Signoretti FG,Gomes BP

    更新日期:2010-11-01 00:00:00

  • Glucose Transporter 2 and 4 Are Involved in Glucose Supply during Pulpal Wound Healing after Pulpotomy with Mineral Trioxide Aggregate in Rat Molars.

    abstract:INTRODUCTION:Pulp capping materials allow healing of injured pulp with a layer of reparative dentin. Glucose is needed to cure the injured area. Glucose is transported by glucose transporter (Glut) 2 and Glut4, which are transmembrane proteins that act as gatekeepers. We hypothesized that the transport of glucose via G...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Tohma A,Ohkura N,Yoshiba K,Takeuchi R,Yoshiba N,Edanami N,Shirakashi M,Ibn Belal RS,Ohshima H,Noiri Y

    更新日期:2020-01-01 00:00:00

  • Investigation of the Efficacy of Passive Ultrasonic Irrigation Versus Irrigation with Reciprocating Activation: An Environmental Scanning Electron Microscopic Study.

    abstract:INTRODUCTION:The objective of this ex vivo study was to compare the efficacy of passive ultrasonic irrigation (PUI) versus a new activation system using reciprocating motion (EasyClean [EC]; Easy Equipamentos Odontológicos, Belo Horizonte, Brazil) to remove debris from the root canal walls at 6 predetermined apical lev...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Kato AS,Cunha RS,da Silveira Bueno CE,Pelegrine RA,Fontana CE,de Martin AS

    更新日期:2016-04-01 00:00:00

  • A standardized novel method to measure radiographic root changes after endodontic therapy in immature teeth.

    abstract:INTRODUCTION:Outcome studies of endodontic treatment of necrotic immature permanent teeth rely on radiographic measures as surrogates of whether the treatment achieved regeneration/revascularization/revitalization. An increase in radiographic root length and/or width is thought to result in a better long-term prognosis...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Flake NM,Gibbs JL,Diogenes A,Hargreaves KM,Khan AA

    更新日期:2014-01-01 00:00:00

  • Cytotoxic evaluation of root canal filling materials on primary human oral fibroblast cultures and a permanent hamster cell line.

    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


    authors: Tai KW,Huang FM,Chang YC

    更新日期:2001-09-01 00:00:00

  • Evaluation of antimicrobial efficacy of herbal alternatives (Triphala and green tea polyphenols), MTAD, and 5% sodium hypochlorite against Enterococcus faecalis biofilm formed on tooth substrate: an in vitro study.

    abstract:INTRODUCTION:The purpose of this study was to evaluate the antimicrobial efficacy of Triphala, green tea polyphenols (GTP), MTAD, and 5% sodium hypochlorite against E. faecalis biofilm formed on tooth substrate. METHODS:Extracted human teeth were biomechanically prepared, vertically sectioned, placed in the tissue cul...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Prabhakar J,Senthilkumar M,Priya MS,Mahalakshmi K,Sehgal PK,Sukumaran VG

    更新日期:2010-01-01 00:00:00

  • Anesthetic efficacy of a primary articaine infiltration and a repeat articaine infiltration in the incisive/mental nerve region of mandibular premolars: a prospective, randomized, single-blind study.

    abstract:INTRODUCTION:The authors conducted a prospective, randomized, single-blind study to determine the degree of pulpal anesthesia obtained with a primary infiltration of 1 cartridge of articaine in the incisive/mental nerve region of the mandibular second premolar and to determine the anesthetic efficacy of a repeat artica...

    journal_title:Journal of endodontics

    pub_type: 杂志文章,随机对照试验


    authors: Dressman AS,Nusstein J,Drum M,Reader A

    更新日期:2013-03-01 00:00:00

  • Cutaneous sinus tract caused by vertical root fracture.

    abstract::This report presents a rare case of odontogenic cutaneous sinus tract caused by a vertical root fracture. The root-fractured molar was probably caused by an accidental blow by a cow 3 years ago. Despite all treatments by physicians and surgeons for nearly 1 year, the sinus tract recurred repeatedly. After diagnosis an...

    journal_title:Journal of endodontics

    pub_type: 杂志文章,评审


    authors: Chan CP,Chang SH,Huang CC,Wu SK,Huang SK

    更新日期:1997-09-01 00:00:00

  • Outcome and Survival of Endodontically Treated Cracked Posterior Permanent Teeth: A Systematic Review and Meta-analysis.

    abstract:INTRODUCTION:The aim of the present systematic review and meta-analysis was to evaluate the success and survival rate of endodontically treated cracked posterior teeth and to assess the preoperative factors that affect teeth survival. METHODS:The study protocol was registered on the PROSPERO international prospective ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章,meta分析


    authors: Olivieri JG,Elmsmari F,Miró Q,Ruiz XF,Krell KV,García-Font M,Durán-Sindreu F

    更新日期:2020-04-01 00:00:00

  • Pain reduction in untreated irreversible pulpitis using an intraosseous injection of Depo-Medrol.

    abstract::The purpose of this prospective, double-blind, randomized study was to evaluate pain reduction using an intraosseous injection of slow-releasing methylprednisolone in teeth with irreversible pulpitis. Forty subjects presenting for emergency treatment completed the study. Each subject had a tooth with a clinical diagno...

    journal_title:Journal of endodontics

    pub_type: 临床试验,杂志文章,随机对照试验


    authors: Gallatin E,Reader A,Nist R,Beck M

    更新日期:2000-11-01 00:00:00

  • Bioaggregate Inhibits Osteoclast Differentiation, Fusion, and Bone Resorption In Vitro.

    abstract:INTRODUCTION:Several bioactive bioceramics with osteoconductive effects can inhibit osteoclast formation and bone resorption in vitro, but the exact underlying mechanism has not been fully elucidated. Bioaggregate (BA), a novel calcium silicate nanoparticulate bioceramic, significantly induces bone and periodontal rege...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Tian J,Qi W,Zhang Y,Glogauer M,Wang Y,Lai Z,Jiang H

    更新日期:2015-09-01 00:00:00

  • Endodontic retreatment: an online study guide.

    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


    authors: JOE Editorial Board.

    更新日期:2008-05-01 00:00:00

  • Gingival squamous cell carcinoma mimicking a dentoalveolar abscess: report of a case.

    abstract::Because of its close proximity to teeth and periodontium, gingival squamous cell carcinoma (SCC) can sometimes mimic tooth-related benign inflammatory conditions, resulting in misdiagnosis. In this study we report a case of gingival SCC that mimicked a dentoalveolar abscess of endodontic origin in its early presentati...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Lee JJ,Cheng SJ,Lin SK,Chiang CP,Yu CH,Kok SH

    更新日期:2007-02-01 00:00:00

  • Role of Protein Phosphatase 1 in Angiogenesis and Odontoblastic Differentiation of Human Dental Pulp Cells.

    abstract:INTRODUCTION:The aims of this study were to examine the immunolocalization of protein phosphatase 1 (PP1) in developing mouse pulp tissue and to explore the role of PP1 in odontoblastic differentiation and in vitro angiogenesis in human dental pulp cells (HDPCs). METHODS:Immunolocalization of PP1 was assessed in devel...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Kim JY,Kim DS,Auh QS,Yi JK,Moon SU,Kim EC

    更新日期:2017-03-01 00:00:00

  • The number of bleaching sessions influences pulp tissue damage in rat teeth.

    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

    pub_type: 杂志文章


    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

  • Evaluation of human osteosarcoma cell line genotoxicity effects of mineral trixoide aggregate and calcium silicate cements.

    abstract:INTRODUCTION:Mineral trioxide aggregate (MTA) and calcium silicate (CS) cements exhibit acceptable levels of cytocompatibility. The aim of the present study was to evaluate MTA and CS cement genotoxicity in a human osteosarcoma cell line (MG63). METHODS:A mitochondrial colorimetric assay was used to evaluate the MG63 ...

    journal_title:Journal of endodontics

    pub_type: 杂志文章


    authors: Ding SJ,Kao CT,Chen CL,Shie MY,Huang TH

    更新日期:2010-07-01 00:00:00

  • Healing of induced periapical lesions in ferret canines.

    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


    authors: Fouad AF,Walton RE,Rittman BR

    更新日期:1993-03-01 00:00:00