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Investigation of polymorphisms in BMP2, BMP4, SMAD6 and RUNX2 genes and pulp stones Aust. Endod. J. (IF 1.6) Pub Date : 2024-03-11 Katherine Azevedo Batistela Rodrigues Thuller, Lívia Azeredo Alves Antunes, Prescila Mota de Oliveira Kublitski, João Armando Brancher, Flares Baratto‐Filho, Erika Calvano Küchler, Alice Corrêa Silva‐Sousa, Manoel Damião Sousa‐Neto, Marilisa Carneiro Leão Gabardo, Leonardo Santos Antunes
This study aimed to assess the association between genetic polymorphisms in BMP2 (rs1005464 and rs235768), BMP4 (rs17563), SMAD6 (rs2119261 and rs3934908) and RUNX2 (rs59983488 and rs1200425) and pulp stones (PS). A total of 117 participants, consisting of 63 individuals with PS and 54 without PS, were included. Digital radiographs and a demographic/clinical questionnaire were used. Genomic DNA from
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ASE NSW 246th general meeting and the last lecture of 2023 Aust. Endod. J. (IF 1.6) Pub Date : 2024-03-08 Atieh (Ati) Sadr
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Unusual approach to treat malocclusion with traumatically missing and hopeless maxillary unilateral incisors: A case report Aust. Endod. J. (IF 1.6) Pub Date : 2024-02-27 Kun Li, Hanglin Qin, Junjie Wang, Xiujin Xing
Orthodontic cases requiring tooth extraction sometimes involve post‐traumatic incisors. For adolescent cases in which trauma causes the maxillary unilateral incisors to be missing or have poor prognoses, it is worth considering these teeth as candidates for extraction, and this unusual approach is seldom reported in the literature. An adolescent patient with a missing maxillary left lateral incisor
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Internal and external morphological analysis of fused-rooted mandibular second molars in the Chinese population: A micro-computed tomographic study Aust. Endod. J. (IF 1.6) Pub Date : 2024-02-15 Weiwei Wu, Yajun Meng, Chialing Tsauo, Min Chen, Dingming Huang, Xuedong Zhou, Ling Zou, Yuan Gao
This study investigated the root canal morphology of fused-rooted mandibular second molars based on the pulp chamber floor (PCF) and analysed the correlation between the external morphology of the radicular groove, and the internal morphology of the PCF and root canal configuration. A total of 291 fused-rooted teeth collected from the Chinese population were scanned using micro-computed tomography
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In vitro bacterial penetration and dissemination through dentinal tubules in roots filled with calcium silicate-based cements Aust. Endod. J. (IF 1.6) Pub Date : 2024-01-30 Peter Pham, Paul V. Abbott
The aim of this study was to assess whether calcium silicate root fillings prevent bacterial penetration and to determine how bacteria penetrate roots. Extracted single-rooted, single-canal human teeth were decoronated, prepared and filled with ProRootMTA or Biodentine (n = 12 each). Positive and negative (n = 2 each) controls were not filled. A two-chamber model was used with Streptococcus gordonii
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Can the addition of surfactants to NaOCl irrigation impact on the percentage of voids of root canal filling? Aust. Endod. J. (IF 1.6) Pub Date : 2024-01-19 Laise Pena Braga Monteiro, Marcella Yasmin Reis Guerreiro, Felipe Gonçalves Belladonna, Carolina Oliveira de Lima, Emmanuel João Nogueira Leal da Silva, Juliana Melo da Silva Brandão
This study evaluated the impact of canal irrigation using surfactants associated to NaOCl on the percentage of voids of root canal filling through micro-computed tomographic (micro-CT) analysis. 27 mandibular mesial roots with Vertucci type II canal configuration with isthmus were selected and scanned in a micro-CT device. The specimens were assigned to three groups (n = 9), according to the irrigation
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Mechanical properties evaluation of two resin-based three-dimensional printing materials and dentine for endodontic training model fabrication: In vitro study Aust. Endod. J. (IF 1.6) Pub Date : 2024-01-19 Anond Amornrattanavej, Kallaya Yanpiset, Jeeraphat Jantarat
The objective of the study was to compare 4 mechanical properties of two 3-D printing resins with dentine. Four mechanical tests were performed on dentine specimens, VeroClear resin and Splint resin with 15 samples each. Vickers hardness test, samples were subjected to a 300-g load for 10 s. Flexural strength test, 8-millimetre, beam-shaped specimens were tested using the three-point bending method
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Factors influencing the outcome of nonsurgical root canal treatment and retreatment: A retrospective study Aust. Endod. J. (IF 1.6) Pub Date : 2024-01-12 Adalberto R. Vieira, Juan Pacheco-Yanes, Isbelia D. Gazzaneo, Mônica A. S. Neves, José F. Siqueira, Lucio S. Gonçalves
This study assessed the influence of diverse variables on the outcome of nonsurgical root canal treatment/retreatment. In general, 304 teeth from 218 patients were treated/retreated and the outcome evaluated by the periapical index (PAI). Teeth with apical periodontitis lesions that have not completely healed were classified as success or failure based on lenient and rigid criteria, respectively. Findings
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The dental microscope in endodontic education: A feasibility study of a distance learning course Aust. Endod. J. (IF 1.6) Pub Date : 2024-01-03 Delphine Maret, Ove A. Peters, Julien Delrieu, Sylvain Gaillac, Philippe Ducreux, Charles-Henri Houze-Cerfon, Thomas Geeraerts, Franck Diemer
This study aimed to evaluate the feasibility of preclinical training, specifically in root canal preparation, using a virtual educational system equipped with an operating microscope. Ten postgraduate general dentistry trainees and practitioners undergoing postgraduate training in endodontics participated. The telesimulation course included three steps: theory, demonstration of practical work by the
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Analysis of the penetration of NaOCl 5.25% into dentinal tubules using different irrigation protocols: An ex vivo study Aust. Endod. J. (IF 1.6) Pub Date : 2023-12-28 Carlos Henrique Carvalhal Gasparelli, Marília Fagury Videira Marceliano-Alves, Luan Ferreira Bastos, Ricardo Tadeu Lopes, Ana Grasiela da Silva Limoeiro, Wayne Martins Nascimento, Luiz Meton Horta dos Santos, Tchilalo Boukpessi, Adriana de Jesus Soares, Marcos Frozoni
The objective of the study was to investigate the 5.25% sodium hypochlorite (NaOCl) penetration into the dentinal tubules after different irrigation methods. Seventy canines were stained with 1% crystal violet and divided into groups (n = 20): GEC—EasyClean; GPUI—E1 Irrisonic ultrasonic insert; GXP—XP-Endo finisher; GPC—conventional irrigation and GNC—stained tooth without irrigation. Axial sections
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Effect of obturation technique on dentinal tubule penetration of two tricalcium silicate–based sealers: Ex vivo study Aust. Endod. J. (IF 1.6) Pub Date : 2023-12-25 Emílio Henrique Rocha Gonçalves Ferreira, César Augusto Perini Rosas, Ana Grasiela da Silva Limoeiro, Samuel Nogueira Lima, Rafael Amado Silva, Iris Nogueira Bincelli Seckler, Alexandre Sigrist De Martin, Wayne Martins Nascimento, Carlos Eduardo da Silveira Bueno
The aim of this study was to assess by confocal laser microscope the depth of dentinal tubule penetration of two tricalcium silicate-based sealers promoted by two obturation techniques in curved canals compared with AHPlus. One hundred and twenty canals were divided into six groups (n = 20): BCSC-Bio-C Sealer (BC) and single-cone technique (SC); BCCW-BC and continuous condensation wave (CW); TFSC-Total
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Detection of the separated endodontic instrument on periapical radiographs using a deep learning-based convolutional neural network algorithm Aust. Endod. J. (IF 1.6) Pub Date : 2023-12-07 Yağız Özbay, Buse Yaren Kazangirler, Caner Özcan, Adem Pekince
The study evaluated the diagnostic performance of an artificial intelligence system to detect separated endodontic instruments on periapical radiograph radiographs. Three hundred seven periapical radiographs were collected and divided into 222 for training and 85 for testing to be fed to the Mask R-CNN model. Periapical radiographs were assigned to the training and test set and labelled on the DentiAssist
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Effects of ultrasonics and trephine burs on dentinal microcrack formation during broken instrument removal procedures: A micro-CT analysis Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-24 Kadriye Özdayi, Sehnaz Yilmaz, Aysin Dumani, Oguz Yoldas
The objective of this study was to compare the effects of ultrasonic and trephine burs on microcrack formation during the removal of broken instruments, utilising micro-computed tomography (Micro-CT). Twenty-five extracted human mandibular molars were used for this study. The hand files were fractured into the mesiobuccal canal, except in the control group. In the ultrasonic group (n = 10), ultrasonic
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Finite element study of the fatigue behaviour of nickel-titanium endodontic files utilised with pecking motion technique Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-23 Eyüp Can Kökan, Yasin Atik, Şebnem Özüpek, Evgeny Podnos, Raif Erişen
The purpose of the study is to evaluate the influence of the pecking motion (reciprocal axial motion) surgical technique on the durability behaviour of the Nickel-Titanium endodontic files using Finite Element Analysis (FEA). A commonly used endodontic file, ProTaper Universal F2, is selected for the study. Root canal treatment procedure is simulated on a test-bench (simulated root canal) proposed
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Six-year clinical evaluation of iRoot BP Plus as apical barrier in permanent teeth of periapical periodontitis Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-22 Lijun Wang, Shuangshuang Ren, Xiujuan Sun, Shiliang Guo
The apical barrier technique in permanent teeth with extensive destruction of the periapical tissue and a long infection time is much more difficult to succeed, which is a clinical challenge. This study aimed to evaluate the long-term effects of iRoot BP Plus as an apical material in adult teeth. Fifty incisors and premolars were chosen for this study. All teeth were performed apical barrier with the
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Is the field of endodontics prepared to utilise ChatGPT? Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-23 Thalya Fernanda Horsth Maltarollo,Henrico Badaoui Strazzi-Sahyon,Rodrigo Rodrigues Amaral,Gustavo Sivieri-Araújo
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Effect of different apical actions of new integrated endodontic motors on apical debris extrusion: An in vitro study Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-14 Yağmur Kılıç, Mustafa Mert Tulgar, Emrah Karataşlıoğlu
The new generation endodontic motors can perform different kinematics when they reach a certain predetermined level thanks to the integrated apex locator system. These actions consist of apical reverse, apical slow down and apical stop. The aim of this study is to compare this action's effect on apical debris extrusion. Sixty extracted human lower premolars were selected. Teeth are divided into four
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Assessment of the biointeractivity of a novel vital pulp therapy agent derived from eggshell biowaste: An in vitro study Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-14 Merve Aksoy, Nurgül Karadaş Bakirhan, Çiğdem Yücel, Demet Atak, Kübra Gülnur Topsakal, Cenkhan Bal
This study aimed to assess the calcium (Ca2+) and hydroxyl (OH−) ion-releasing ability, namely the biointeractivity of eggshell-derived hydroxyapatite (ESDHA) in comparison with mineral trioxide aggregate (MTA) and calcium hydroxide (CH). ESDHA, MTA and CH samples (n = 10; 8 × 1.6 mm) were immersed in 10 mL of deionised water (37°C, pH 6.8). Ca2+ and OH− ion releases were detected in 1, 7 and 21 days
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Unusual imaging appearance of cemental tear in the maxillary first molar on cone-beam computed tomography: A case report Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-14 Chiaki Kuwada, Takeshi Kikuchi, Akiko Kato, Munetaka Naitoh, Yoshitaka Kise, Akio Mitani, Masaki Honda, Eiichiro Ariji
A cemental tear (CeT) is a definitive clinical entity and its radiographic appearance is well known in single-rooted teeth. However, the imaging features of CeT in multi-rooted teeth have not been clarified. We report a case of CeT which arose in the maxillary first molar and exhibited an unusual appearance in cone-beam computed tomography images. The torn structure was verified as cementum by micro-computed
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Efficacy of calcium hydroxide-loaded poly(lactic-co-glycolic acid) biodegradable nanoparticles as an intracanal medicament against endodontopathogenic microorganisms in a multi-species biofilm model Aust. Endod. J. (IF 1.6) Pub Date : 2023-11-10 Warat Leelapornpisid, Piyaporn Wanwatanakul, Thanisorn Mahatnirunkul
This study aimed to evaluate the antimicrobial activity of calcium hydroxide-loaded poly(lactic-co-glycolic acid) nanoparticles (CH-loaded PLGA NPs) on multi-species biofilms. Human root blocks were prepared (n = 40), and multi-species suspensions of Candida albicans, Enterococcus faecalis and Streptococcus gordonii were incubated within the root canals for 21 days. Canals (n = 10/group) were then
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Effect of radiopacifier and liquid in the physicochemical and biological properties of calcium silicate clinker Angelus: A laboratory investigation Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-30 Mário Tanomaru-Filho, Bruna Vasconcellos de Oliveira, Karina Ines Medina Carita Tavares, Elisandra Márcia Rodrigues, Fernanda Ferrari Esteves Torres, Juliane Maria Guerreiro-Tanomaru
The aim of this study was to evaluate the effect of radiopacifier calcium tungstate and manipulation with distilled water (DW) or liquid with additives (LA) on calcium silicate clinker Angelus (CL) properties, compared with MTA (Angelus, Brazil) and MTA Repair HP (MTAHP, Angelus, Brazil). The physicochemical properties, cellular viability and bioactivity were evaluated. ANOVA/Tukey and Bonferroni tests
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Prevalence and anatomic associations of middle mesial canals and isthmi in mandibular first molars: A CBCT-based study in a Northern Chinese population Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-30 Jiaojiao Liu, Xiangyu Zhao, Ying Liu, Nannan Dong, Xiaodong Zhang
This study investigated the prevalence of the middle mesial canal (MMC) and isthmus in a northern Chinese subpopulation using cone-beam computed tomography (CBCT). CBCT images of 1060 mandibular first molars (MFMs) were analysed. Data analysis was performed using the chi-square test, t-test, and multiple logistic regression analysis (p < 0.05). The prevalence of MMC and isthmus was 15.2% and 40.6%
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The impact of long-term storage conditions on the development of experimental dentinal microcracks Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-24 Gustavo De-Deus, Fabio Nakao Arashiro, Erick Miranda Souza, Emmanuel João Nogueira Leal Silva, Tiago de Mello Guimarães, Ana Carolina de Carvalho Maciel, Diogo da Silva Oliveira, Felipe Gonçalves Belladonna, Ricardo Tadeu Lopes, Marco Aurélio Versiani
This study evaluated the impact of long-term storage conditions (medium and time) on the development of experimental dentinal microcracks through micro-computed tomography. Sixty freshly extracted premolars were stored in formalin, water, or dry conditions (n = 20) and scanned after 72 h, 30 days, 6 months and 3 years of extraction. The effect of the storage medium and time on the occurrence of dentinal
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Influence of two kinematics on canal transportation and centering ability of WaveOne Gold and One Curve files Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-17 Raghda A. K. Almazedi, Iman M. Al-Zaka
This research examines canal transportation and centering ability of single-file systems when operated in continuous rotation or reciprocation. Sixty J-shaped resin blocks were used. The specimens were divided into two main groups (n = 30). Then, based on the motion used to operate the instruments, each group was subdivided into two subgroups (n = 15). Group A1: One Curve/rotation, Group A2: One Curve/clockwise
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Syringe irrigation in confluent canals: A sequential computational fluid dynamics assessment Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-17 Mário Rito Pereira, Goncalo Silva, Viriato Semiao, Jorge N. R. Martins, Vania Silverio, Paula Pascoal-Faria, Isabel Duarte, Nuno Alves, António Ginjeira
This study aims to assess the influence of root canal preparation, irrigation needle design and its placement depth in the irrigation flow of confluent canals during syringe irrigation. A mandibular molar presenting two confluent canals in its mesial root was sequentially prepared and scanned by micro-computed tomography after mechanical preparation up to ProTaper Next system sizes X2 (25/.06v), X3
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Cytokine expression of IL-8 before and after root canal treatment in patients with symptomatic apical periodontitis: A clinical trial Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-11 Sarah Samir Abouelenien, Dina Ahmed Morsy, Olfat Gameel Shaker
This study's objective was to compare the cytokine expression of IL-8 in periapical tissues of single-rooted teeth with symptomatic apical periodontitis (SAP) before and after root canal treatments. As well as, comparing IL-8 levels in peri-apical tissues between vital and necrotic teeth with SAP.
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Evaluation of the effect of graphene oxide-based nanocomposites on smear layer by a scanning electron microscope: Laboratory investigation Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-06 Gulbin Sehitoglu, Fatih Cakici, Saniye Soylemez, Cagatay Dengiz
This study is to examine the effect of graphene oxide (GO) and GO-based nanocomposites (GO_EDTA, GO_CHIT) on the smear layer by scanning electron microscopy (SEM). Sixty human single-rooted anterior teeth were used. Samples were randomly categorised into six groups. Distilled water in group 1, 17% EDTA in group 2, chitosan (CHIT) solution in group 3, GO solution in group 4, GO_EDTA solution in group
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Endodontic management of an aberrant germinated composite odontome: A case report Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-04 Ankit Arora, Kavina Desai, Sonali Kapoor, Seema Gajera
To describe the endodontic treatment of a germinated composite odontome with atypical internal anatomy. A 35-year-old male presented with pain in the left mandibular second molar region. Intraoral examination and Cone-Beam Computed Tomography (CBCT) revealed a rare case of a germinated composite odontome with a 3-2-1 Vertucci configuration in the mesial root. Occlusal morphology and mesial root configuration
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Finite element stress analysis of dental cement application on endocrown and onlay restoration Aust. Endod. J. (IF 1.6) Pub Date : 2023-10-03 Satrio Wicaksono, Wandi Prasetia, Anna Muryani, Tatacipta Dirgantara, Andi Isra Mahyuddin
The aim of the study was to evaluate the influence of resin cement material types on tooth with endocrown and onlay restorations. The first molar was scanned using Micro-CT and underwent a modelling process to obtain the 3D model for computational simulation. Eight models were simulated in the current study with two loading conditions (720N vertical load and 200N oblique load), two types of restoration
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Effects of Nd: YAG laser on tumour necrosis factor-alpha, interleukin-1beta and interferon-gamma levels in teeth with apical periodontitis: A clinical study Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-25 Sevda Durust Baris, Ali Turkyilmaz, Mehmet Kursat Derici
This study aimed to evaluate the levels of tumour necrosis factor-alpha (TNF-α), interleukin-1beta (IL-1β) and interferon-gamma (IFN-γ) with asymptomatic apical periodontitis (AP). A total of 60 participants were randomly divided into two groups: the conventional irrigation (control) and the Nd: YAG laser irradiation. The interstitial fluids were obtained after root canal cleaning (day 0) and 1 week
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Single nucleotide polymorphisms in inducible nitric oxide synthase gene are not associated with persistent apical periodontitis Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-19 Sandra Regina Santos Meyfarth, Lívia Azeredo Alves Antunes, Jhenyfer da Silva Tavares, Ludmila da Silva Guimarães, Erlange Andrade Borges da Silva, Flares Baratto-Filho, Erika Calvano Küchler, Alice Corrêa Silva-Sousa, Manoel Damião Sousa-Neto, Leonardo Santos Antunes
The aim of this study was to investigate whether there is an association between inducible in single nucleotide polymorphisms in nitric oxide synthase (rs2297518 and rs2779249) and persistent apical periodontitis. A total of 291 Brazilian subjects were included: 125 with signs/symptoms of persistent apical periodontitis and 166 with root canal-treated teeth exhibiting healthy perirradicular tissues
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Presence of methanogenic archaea in necrotic root canals of patients with or without type 2 diabetes mellitus Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-15 Ana I. Soza-Bolaños, Rubén A. Domínguez-Pérez, José L. Ayala-Herrera, Rosa M. Pérez-Serrano, Uriel Soto-Barreras, León F. Espinosa-Cristóbal, Claudia A. Rivera-Albarrán, Guadalupe Zaldívar-Lelo de Larrea
Theoretically, a necrotic root canal fulfils all requirements as a niche for methanogens to inhabit. However, their presence in it and its implication in apical periodontitis (AP) is controversial. Therefore, to contribute to ending the controversy, this study aimed to detect and compare methanogens' presence in two distinct niches with supposedly different microenvironments; both were necrotic root
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Clinical management of external cervical resorption: A systematic review Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-13 Giulia Bardini, Cristiano Orrù, Francesca Ideo, Venkateshbabu Nagendrababu, Paul Dummer, Elisabetta Cotti
This review investigated whether any therapeutic options influenced the outcome of treatment for teeth with external cervical resorption. Out of 870 articles identified by an electronic search, 60 clinical case reports and six case series were included. No randomised clinical trials were found. Risk of bias was assessed using Joanna Briggs Institute's tools. External surgical intervention was the preferred
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Three-dimensional accuracy of endodontic access preparations using novel nonrestrictive static guides: A laboratory study Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-12 Ahmed Elhakim, Junghwan Hwang, Sunil Kim, Euiseong Kim, Sumi Kang
This study compared the accuracy of traditional endodontic access to conservative access cavities prepared with or without novel nonrestrictive endodontic access guides by operators with different levels of clinical experience without visual aids, using a three-dimensional volumetric accuracy analysis method. The accuracy of the preparations was analysed using a novel 3D volumetric analysis by calculating
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Critical analysis of a new system to classify root and canal morphology — A systematic review Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-08 Hany Mohamed Aly Ahmed, Giampiero Rossi-Fedele, Paul Michael Howell Dummer
A novel system to classify root and canal morphology was recently introduced (Ahmed et al. 2017). This systematic review aimed to answer the following research question: Does the Ahmed et al. system provide a more accurate and practical classification of root and canal anatomy compared to other classifications? A literature search was conducted in Google Scholar, Scopus and Wiley Online Library to
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Assessing the impact of obturation techniques, kinematics and irrigation protocols on apical debris extrusion and time required in endodontic retreatment Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-05 Eugenio Pedullà, Francesco Iacono, Martina Pitrolo, Giovanni Barbagallo, Giusy Rita Maria La Rosa, Chiara Pirani
The aim of the study was to evaluate the impact of kinematics and irrigation protocols on the extrusion of apical debris during removal of different obturation techniques. A total of 144 single-rooted teeth were instrumented and obturated with Thermafil+AH Plus, Thermafil+AH Plus Bioceramic and single gutta-percha cone+AH Plus Bioceramic. Samples were divided according to the retreatment kinematics:
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Morphometric relationships in mesio-buccal roots of maxillary first molars in Saudi subpopulation: A CBCT study Aust. Endod. J. (IF 1.6) Pub Date : 2023-09-04 Swati Srivastava, Noura Suliman Aldakhail, Muhammad Qasim Javed
This CBCT-based study analysed morphometric relationships in Mesio-Buccal (MB) roots of maxillary first molars (MFM). 133 MFM with two MB canals were assessed and classified using Vertucci's classification. MB roots' length and MB1-MB2 canals inter-orifice distances (IOD) were noted. The data were analysed using SPSS software. The most frequently present canal was type IV (59.4%) followed by type II
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Endodontic access cavities: Fears and difficulties of Moroccan dental students related to teachers, self-confidence and technical protocol Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-22 Sonia Ghoul, Fatima-Ezzahra Faridi, Louzan Haj Khalaf, Rachid Razine, Khadija Sikkou, Lamia Idrissi-Kaitouni, Mohamed Rahhali, Majid Sakout
Fears and difficulties of Moroccan dental students regarding endodontic access cavity were evaluated among 3 items: (i) teachers, (ii) student confidence and (iii) access cavity protocol. A three Likert scale was used to rate 24 statements. Specific scores between 1 and 3 and mean scores between 0 and 1 were used to assess statements and items, respectively. Among 116 students, the mean score of difficulty
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A laboratory investigation on the effect of biguanide- and pyridine-derived antiseptics on the adhesion of resin composites to dentin Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-21 Arzu Yağmur Uçar, Türkay Kölüş, D. Alperen Bozkurt, Prasanna Neelakantan, Islam A. A. Ali, Sema Belli
Optimal bonding of adhesive restorations to dentin is crucial to prevent microleakage and enhance the survival of root-filled teeth. The aim of this study was to investigate the effect of chlorhexidine (CHX), alexidine (ALX) and octenidine dihydrochloride (OCT) on the bond strength of resin composites to coronal dentin. Human coronal dentin specimens were treated with 2% CHX, 0.1% ALX, 0.1% OCT or
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Cyclic fatigue resistance of different nickel-titanium instruments in single and double curvature at room and body temperatures: A laboratory study Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-17 Giusy Rita Maria La Rosa, Maria Laura Leotta, Francesco Saverio Canova, Virginia Rosy Romeo, Gabriele Cervino, Luigi Generali, Eugenio Pedullà
The aim of this study was to compare the cyclic fatigue resistance of nickel-titanium instruments inside single and double-curved canals at different temperatures. 160 HyFlex EDM #20.05 (HEDM), VDW.ROTATE #20.05 and #25.06, Mtwo #25.06 were randomised (n = 10) for the dynamic cyclic fatigue tests according to the curvature (i.e. single and double) at 20° ± 1°C and 35° ± 1°C. The number of cycles to
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The use of sodium hypochlorite mixed with etidronic acid during canal preparation increases debris extrusion Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-11 Talita Tartari, Brenda Stefhany Wilchenski, Luana Arantes de Souza Lima, Rodrigo Ricci Vivan, Vasudev Ballal, Marco Antonio Hungaro Duarte
The purpose of this study was to compare the impact of different irrigation protocols on debris extrusion. Single-rooted teeth were distributed into groups based on the irrigation protocols (n = 40): 2.5% NaOCl (biomechanical preparation: 20 mL and final irrigation: 5 mL); 2.5% NaOCl (biomechanical preparation: 20 mL) + 17% EDTA (final irrigation: 2 mL) + 2.5% NaOCl (final irrigation: 3 mL); and a
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Evaluation of treatment and restoration preferences in deep carious teeth with various pulp exposure sizes: A questionnaire-based survey Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-09 Gülşah Yenier Yurdagüven, Vasfiye Işık, Elif Çiftçioğlu, Haşmet Ulukapı, Mehmet Baybora Kayahan
This study evaluated the management preferences in a deep carious vital tooth. A questionnaire was e-mailed to members of the Turkish Dental Association. The questionnaire included a photograph and radiographs of an extremely deep carious molar (#16) of a 30-year-old man suffering from cold and chewing sensitivity. The dentists were asked to choose treatments for pulp exposure of <1, 1–2, and ≥2 mm
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Concurrency of additional canals in mandibular incisors and second mesiobuccal canal in maxillary first molars: A cone-beam computed tomography investigation Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-07 Jinchi Liu, Bei Tang, Xin Xu
This study investigated the concurrency of additional canals in mandibular incisors and the second mesiobuccal canal in maxillary first molars among the Chinese population. In total, 8644 cone-beam computed tomography images from 8644 patients with bilateral mandibular incisors and maxillary first molars were examined. The data were analysed using Chi-square test, binary logistic regression analysis
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Cytocompatibility and cell migration evaluation of calcium silicate-based root canal sealer compared to epoxide-amine resin sealer in stem cells from human apical papilla: An in-vitro study Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-03 Linh Cao Hoai Nguyen, Loc Nguyen Gia Pham, Khoa Van Pham, Minh Duc Nguyen, Lan Thi Quynh Ngo
The purpose of this study was to assess the effect of a calcium silicate-based sealers (CeraSeal) and an epoxy resin-based sealer (AH Plus) on cytotoxicity and cell migration of stem cell from the human apical papilla (hSCAPs) by using the Alamar Blue, Annexin V-FICT and wound healing assays. In Alamar Blue assay, hSCAPs exposed to undiluted CeraSeal extract had significantly higher cell viability
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Clinical evaluation of culturable bacteria, endotoxins and lipoteichoic acid in teeth with vital normal pulp tissues Aust. Endod. J. (IF 1.6) Pub Date : 2023-08-01 Vito M. Chiarelli-Neto, Emelly de Aveiro, Juliana D. Bronzato, Rodrigo Arruda-Vasconcelos, Lidiane M. Louzada, Ederaldo P. Godoi, Erica M. Lopes, Adriana de-Jesus-Soares, Caio C. R. Ferraz, José F. A. Almeida, Marina A. Marciano, Brenda P. F. A. Gomes
The objective of this study was to investigate the presence of culturable bacteria, endotoxins (LPS) and lipoteichoic acid (LTA) levels in teeth with normal vital pulp (NVP) with intact crowns (IC) and those with coronal restoration (CR) limited to the enamel level. A total of 20 teeth indicated for endodontic treatment due to prosthetic reasons were selected. Samples were collected from the root canals
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Approaches to vital pulp therapies Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-28 Elif Ballikaya, Betül Çelebi-Saltik
Tooth decay, which leads to pulpal inflammation due to the pulp’s response to bacterial components and byproducts is the most common infectious disease. The main goals of clinical management are to eliminate sources of infection, to facilitate healing by regulating inflammation indental tissue, and to replace lost tissues. A variety of novel approaches from tissue engineering based on stem cells, bioactive
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Effect of the progressive taper enlargement of buccal root canals of three-rooted maxillary molars: A stepwise micro-CT study Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-25 Ana Flávia Almeida Barbosa, Carolina Oliveira de Lima, Bernardo Rempto Antunes, Luciana Moura Sassone, Marco Aurélio Versiani, Emmanuel João Nogueira Leal da Silva
This study evaluated unprepared canal areas, volume of dentine removal, and dentine thickness after the progressive enlargement of the buccal canals of 22 maxillary molars, with and without the MB2, using instruments with the same tip size (0.25 mm) but 4 different tapers (0.03, 0.05, 0.06 and 0.08 v). Micro-CT scans were performed after each instrument. Data were compared using a general linear mixed
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Irrigation with reduced sodium hypochlorite solution concentration using laser-induced cavitation is effective and safe in rat intraradicular biofilm model Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-25 Takehiro Uematsu, Yoshio Yahata, Koyuki Ohnishi, Shigeto Suzuki, Masafumi Kanehira, Toshinori Tanaka, Susumu Sudo, Venkata Venkataiah Suresh, Masahiro Saito
This study aimed to investigate the optimal sodium hypochlorite solution (NaOCl) concentration to effectively remove the root canal biofilm without stimulating periradicular inflammation using coronal laser-activated irrigation (CLAI). To compare the efficacy of different NaOCl concentrations combined with CLAI in removing the biofilm, an in vivo intraradicular biofilm rat model was used. Root canals
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A comparison of endodontic registrar training experience with treatments provided by private practice endodontists Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-23 Charn Thanissorn, Johnson Ye, Daniel Girgis, Nathan van Dort, Paul V. Abbott
The primary aim was to compare cases seen by public endodontic clinicians (endodontists and endodontic registrars) to that of private endodontists. This was done by comparing item numbers charged over a 3-year period from 1 January 2016 to 1 January 2019 from both sectors. The secondary aim was to compare item numbers charged by endodontic registrars during their training as recorded by their submitted
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Efficacy of mixed diclofenac solutions against root canal biofilms Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-18 Carmen Maria Ferrer-Luque, Carmen Solana, Beatriz Aguado, Pilar Baca, María Teresa Arias-Moliz, Matilde Ruiz-Linares
The objective of this research was to evaluate the efficacy of diclofenac sodium solutions, with or without cetrimide (CTR) added, against polymicrobial root canal biofilms grown in dentin specimens. The study groups were: (1) 5% diclofenac sodium (DCS); (2) 2.5% DCS; (3) 2.5% DCS + 0. 2% CTR; (4) 2.5% DCS + 0.4% CTR and (5) 0.9% saline solution (SS) as the control. After 5 min of solution contact
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Evaluation of cyclic and torsional fatigue resistance of several heat-treated reciprocating nickel–titanium instruments Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-13 Theodoro Weissheimer, Marco Antonio Húngaro Duarte, Marcus Vinicius Reis Só, Ricardo Abreu da Rosa, Michel Klymus Espinosa, Rodrigo Ricci Vivan, Murilo Priori Alcalde
This study investigated the cyclic fatigue and torsional resistance of Unicone Plus (UCP 25.06), Unicone (UC 25.06), Reciproc Blue (RB 25.08) and Wave One Gold (WOG 25.07) performed at body temperature (35° ± 1°C). Time and number of cycles to fracture (NCF), as well as torque and angular deflection were recorded. Fractured surfaces were evaluated by scanning electron microscopy (SEM). Data were analysed
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Parallel endodontic education via social media: An exploratory survey study Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-13 Nawar Naguib Nawar, Mostafa M. A. Elkholy, William Nguyen Ha, Sebastian Bürklein, Shehabeldin Mohamed Saber
There is insufficient research to evaluate social media's influence on endodontic education. Therefore, this study assessed the percentage of students utilising Facebook in their education and the factors influencing their engagement. A survey was conducted on dental students, interns and dentists undertaking specialist programmes. Categorical data were analysed using Fisher's Exact test and multiple
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Applying artificial intelligence to detect and analyse oral and maxillofacial bone loss—A scoping review Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-13 Mehran Farajollahi, Mohammad Sadegh Safarian, Masoud Hatami, Azadeh Esmaeil Nejad, Ove A. Peters
Radiographic evaluation of bone changes is one of the main tools in the diagnosis of many oral and maxillofacial diseases. However, this approach to assessment has limitations in accuracy, inconsistency and comparatively low diagnostic efficiency. Recently, artificial intelligence (AI)-based algorithms like deep learning networks have been introduced as a solution to overcome these challenges. Based
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The effect of a preparation containing glycocholic acid on the biocidal efficacy of sodium hypochlorite in a biofilm laboratory model Aust. Endod. J. (IF 1.6) Pub Date : 2023-07-05 Yoseif Haddad, Wing Chuan Chan, William Nguyen Ha, Antonio Conde, Roberto Estevez, Alejandro Peña Lopez, Georgia Charlotte Gates, Giampiero Rossi-Fedele
This study assessed the antimicrobial effect of sodium hypochlorite (NaOCl) mixtures combined with Keratobacter (KB) using an engineered biofilm root canal model. Clinical and reagent grade NaOCl were mixed with KB (9:1-vol/vol) to assess pH values over 1 min to select the ideal solution with a pH just below the pKa of hypochlorous acid. The samples were randomly divided into five groups: 1% and 4%
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Students' experience and perceptions of undergraduate endodontic education in New Zealand Aust. Endod. J. (IF 1.6) Pub Date : 2023-06-27 Lara Friedlander, Gabrielle Hunt, Nicholas Chandler, Ben Daniel
This study investigated the clinical experience and perceptions of New Zealand graduating dental students (2019 and 2020) towards endodontic teaching and their clinical learning outcomes using an online survey and clinical scenarios. Quantitative data were analysed using SPSS software, and qualitative data were analysed thematically. Responses were similar for both cohorts (response rates 74%, 2019;
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Effect of ultrasonic agitation on marginal adaptation, intratubular penetration and bonding strength of calcium-silicate-based endodontic sealers: A laboratory study Aust. Endod. J. (IF 1.6) Pub Date : 2023-06-26 V. F. Carneiro, M. P. Alcalde, M. S. do Vale, R. R. Vivan, M. A. H. Duarte, B. C. Vasconcelos
The effect of ultrasonic activation (UA) on marginal adaptation, intratubular penetration and bond strength provided by three calcium silicate-based sealers was evaluated. Ninety-six distobuccal root canals of maxillary molars were randomly divided into 8 groups (n = 12) according to the sealer and UA application: EndoSequence BC sealer (ESBC), Sealer Plus BC (SPBC) and Bio-C Sealer (BCS), using AH
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Long-term follow-up of single-visit pulp revascularisation for the dens evaginatus and dens invaginatus: Cases report Aust. Endod. J. (IF 1.6) Pub Date : 2023-06-13 Hyeon-Cheol Kim, Sang Won Kwak, Gary Shun-Pan Cheung
This article documents cases of single-visit pulp revascularisation for dens evaginatus and dens invaginatus, without using intracranial medicaments or antibiotics, aiming to provide a potentially applicable protocol for pulp revascularisation procedure in a single-visit. Two patients with chief complaints of pain and swelling visited a dental hospital. Radiographs revealed that the causative teeth
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The effects of chelation on the intratubular penetration depth of mineral trioxide aggregate Aust. Endod. J. (IF 1.6) Pub Date : 2023-05-18 Yu-Yao Teoh, Khai Yi Liew, Jethro Siao, Shaun Wong, Nicholas Chandler, George Bogen
The penetration depth and extent of mineral trioxide aggregate (MTA) crystallisation into dentinal tubules at 2, 4 and 6 weeks after chelation and MTA obturation were investigated. Standardised 12 mm human root specimens (45) were prepared with NiTi rotary files using 4% NaOCl irrigation. They were randomly allocated to three irrigants (n = 15: 4% NaOCl, 15% ethylenediaminetetraacetic acid or Edgemix)