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Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc

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https://www.readbyqxmd.com/read/30402989/histopathological-findings-of-an-exposed-human-pulp-carbonised-by-co-2-laser-irradiation-a-case-report
#1
Masaya Suzuki, Chikage Kato, Satoki Kawashima, Koichi Shinkai
This report shows the healing process of an exposed pulp carbonised by CO2 laser irradiation prior to the application of a capping material. Six intact teeth from four volunteers were irradiated by CO2 laser and randomly capped with either an adhesive resin (SE bond) (n = 3) or calcium hydroxide-based cement (Dycal) (n = 3). The laser was operated in super-pulsed mode (power output, 0.5 W) for an irradiation time of 30 s. All cavities were restored with composite resin. Each tooth was extracted at approximately 30, 50 or 260 days post treatment and prepared for histological evaluation...
November 6, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30402984/effect-of-phytic-acid-on-the-setting-times-and-tensile-strengths-of-calcium-silicate-based-cements
#2
Ozgur Uyanik, Emre Nagas, Selen Kucukkaya Eren, Zafer C Cehreli, Pekka K Vallittu, Lippo V J Lassila
This study aimed to evaluate and compare the effect of 1% phytic acid as a mixing medium on the setting times and diametral tensile strengths of different calcium silicate-based cements. Specimens for four experimental groups (n = 20/each) were fabricated by mixing ProRoot MTA® (Dentsply) and Biodentine® (Septodont) powders with their original liquids or with 1% phytic acid. Half of the samples in each group were immediately subjected to setting time tests, whereas the remaining half was subjected to the diametral tensile strength test after 3 weeks...
November 6, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30402906/mandibular-first-premolar-apical-morphology-a-stereomicroscopic-study
#3
Lama Awawdeh, Mousa Abu Fadaleh, Aladdin Al-Qudah
The aim of this study was to investigate the size, shape and position of the physiological foramen and the relationship between the age and gender to the location and size of the apical foramen of mandibular first premolars. One hundred and one extracted human mandibular first premolar teeth were examined; age and gender of the patients were recorded. Apices of teeth were examined stereomicroscopically for number, size and shape of apical foramina; frequency and deviation of accessory foramina from the apex and the relation with age and gender...
November 6, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30350327/a-comparative-evaluation-of-two-working-length-determination-methods
#4
Georgios Keratiotis, Nikolaos Kournetas, Anastasia Agrafioti, Evangelos G Kontakiotis
The purpose of this study was to explore the level of agreement between the radiographic and the electronic apex locator (EAL) working length assessment methods, amongst teeth with different diagnoses. Working length measurements along with pulpal and periapical diagnoses data were collected from the Patient Registry Database of our Institution. The null hypothesis of this study was that pulp status does not affect the level of agreement between the two methods. The degree of agreement was assessed using the Bland-Altman method, followed by a Kruskal-Wallis test (a = 5%) that would allow the null hypothesis to be accepted...
October 22, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30341798/a-survey-of-patients-perceptions-about-and-their-experiences-of-root-canal-treatment
#5
Lahiru Chandraweera, Kelly Goh, Julia Lai-Tong, Janni Newby, Paul Abbott
Root canal treatment (RCT) is widely perceived to be a painful procedure. There is a lack of data regarding patients' perceptions of RCT within the Australian population. The aims of this pilot study were to investigate the perception of adult Australian patients within the Perth Metropolitan area and to identify how this changes following treatment. Effects of demographic factors on anxiety and pain experience were also explored. Sixty-nine patients were surveyed, of which 28 (41%) completed both pre- and post-treatment surveys...
October 19, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30338618/the-effect-of-bleaching-agents-on-the-compressive-strength-of-calcium-silicate-based-materials
#6
Cangül Keskin, Evren Sariyilmaz, Ali KeleŞ
The present study aimed to evaluate the effect of sodium perborate on the compressive strength of calcium silicate-based materials. ProRoot wMTA, MTA Plus, NeoMTA Plus and Biodentine discs with 5 mm thickness and 4 mm diameter were prepared. Thirty discs from each material were used for compressive strength testing and divided into two groups: control and bleaching (n = 15). The sodium perborate was mixed with 30% hydrogen peroxide in a creamy consistency and placed on the surface of the specimens. Specimens were tested in an Instron machine, and compressive strength values were recorded and compared...
October 18, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30338617/endodontic-management-of-a-maxillary-first-molar-with-two-palatal-roots-a-case-report
#7
Alexander Schryvers, Dries Govaerts, Constantinus Politis, Paul Lambrechts
This case report describes the endodontic treatment of a maxillary first molar with two palatal roots. Both of the palatal canals had separate canal orifices and separate foramina. A cone beam computed tomography scan was taken prior to treatment to visualise any abnormalities seen on a periapical radiograph. The shaping procedure of the root canal treatment was performed using reciprocating instruments. The obturation was performed using matched gutta percha points and a resin based sealer in a warm vertical compaction manner...
October 18, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30338604/an-assessment-of-endodontic-treatment-completion-rate-in-a-university-based-student-clinic-and-the-factors-associated-with-incomplete-treatment
#8
Unni Krishnan, Hejie Jessica Huang, Alex Moule, Ratilal Lalloo
Incomplete endodontic treatment is potentially a public health issue. The aim of this retrospective study was to evaluate the endodontic treatment completion rate at a University student clinic and to identify the factors associated with completion rates. The records of all patients who commenced an endodontic treatment (code 415) from January 2015 to December 2015 were extracted. A total of 783 records were available for analysis of which 86% received complete endodontic treatment. Maxillary first molars were significantly associated with incomplete endodontic treatment (IET)...
October 18, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30338599/piezosurgical-management-of-sealer-extrusion-associated-mental-nerve-anaesthesia-a-case-report
#9
József Szalma, Balázs Soós, Károly Krajczár, Edina Lempel
The present report describes a case where sealer extrusion (Sealapex) occurred during root canal obturation of a left lower second premolar tooth, and the patient experienced sudden pain and followed by complete anaesthesia of the lower lip. After 3 weeks of conservative therapy and an unaltered anaesthesia period, piezosurgical removal of the extruded sealer and root-end resection was performed despite the direct contact with the mental neurovascular bundle. At suture removal, 1 week after surgery, there was no improvement in sensation...
October 18, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30318788/influence-of-canal-curvature-on-the-amount-of-apically-extruded-debris-determined-by-using-three-dimensional-determination-method
#10
Emrah Karataslioglu, Hakan Arslan, Gamze Er, Ece Avci
The aim of this study was to introduce a new three-dimensional curvature classification method to evaluate the canal curvature and analyse its effect on the amount of debris extrusion during reciprocating preparation. Freshly extracted mandibular molar teeth were collected. After performing access cavities, periapical radiographs were taken on both mesio-distal and bucco-lingual planes of each tooth using a digital sensor. The radii of the curvature were calculated and a new three-dimensional classification method was used to classify canal curvature, based on radius as follows: Three-dimensionally slight, moderate and severe curve root canal...
October 14, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30295006/effect-of-ibuprofen-on-the-efficacy-of-inferior-alveolar-nerve-block-in-patients-with-irreversible-pulpitis-a-meta-analysis
#11
REVIEW
Juliana L de Geus, Leticia M Wambier, Thaynara F Boing, Alessandro D Loguercio, Alessandra Reis
The aim of this study was to compare preventive ibuprofen administration to placebo on the efficacy of inferior alveolar nerve block in patients with irreversible pulpitis. A search was performed in PubMed, Scopus, Web of Science, LILACS, BBO, Cochrane Library, SIGLE, and grey literature. The risk of bias was evaluated through the Cochrane Collaboration's tool. The quality of evidence was assessed using the GRADE approach. Only seven studies remained for the meta-analysis. Administering ibuprofen before anaesthesia increased the success rate of injectable anaesthesia (RR = 1...
October 7, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30242795/changes-of-cd90-expression-and-immunoreactive-cell-localisation-in-rat-dental-pulp-after-cavity-preparation
#12
Yousuke Sano, Akina Sugiuchi, Keisuke Mitomo, Akihide Yanagisawa, Ryo Kambe, Masahiro Furusawa, Takashi Muramatsu
CD90 expression and immunoreactive cell localisation in rat dental pulp cells after cavity preparation was investigated. Cavity preparation was performed on the maxillary first molar of 8-week-old Wistar rats (n = 36), and immunohistochemistry and quantitative real-time PCR were performed. CD90-immunoreactivity was observed among subodontoblastic cells in the control group. One day after cavity preparation, the CD90-immunoreactivity disappeared under the cavity area. While CD90-immunoreactivity was faint after 3 days, the re-arrangement of odontoblasts was detected in contact with dentine...
September 21, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30230647/influence-of-ultrasonic-activation-using-different-final-irrigants-on-antimicrobial-activity-smear-layer-removal-and-bond-strength-of-filling-material
#13
Matheus Albino Souza, Igor Paim Hoffmann, Vitor Hugo Sanches Menchik, Julia Zandoná, Caroline Tumelero Dias, Huriel Scartazzini Palhano, Charise Dallazem Bertol, Luciana Grazziotin Rossato-Grando
The aim of this study was to evaluate the influence of ultrasonic activation (US) over final irrigants on antimicrobial activity, smear layer removal and bond strength. The root canals of 180 extracted human teeth were distributed into three experimental tests (n = 60). In each test, the samples were subdivided into six groups (n = 10) according to final irrigation protocols: G1:distilled water (DW); G2:DW + US; G3:17% EDTA; G4:QMix; G5:17% EDTA + US; and G6:QMix + US. The antimicrobial activity was evaluated by counting of colony-forming units (CFUs), the smear layer removal by scanning electron microscopy and the bond strength by push-out test...
September 19, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30230129/efficacy-of-different-irrigation-methods-on-dentinal-tubule-penetration-of-chlorhexidine-qmix-and-irritrol-a-confocal-laser-scanning-microscopy-study
#14
Meltem Küçük, Fatma Kermeoğlu
The aim of this in vitro study was to compare the percentage of penetration of three final irrigant into the dentinal tubules after application of several irrigation techniques. Mandibular premolars were divided into nine groups (n:10): chlorhexidine (CHX) + conventional syringe irrigation (CI), CHX + EndoActivator (SI), CHX + Er,Cr:YSGG laser (LAI), QMix + CI, QMix + SI, QMix + LAI, Irritrol + CI, Irritrol + SI and Irritrol + LAI. Following irrigation, all roots were horizontally sectioned at 2 mm and 5 mm from the apex and examined using a confocal laser scanning microscopy...
September 19, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30230115/evaluation-of-root-canal-morphology-of-maxillary-premolars-a-cone-beam-computed-tomography-study
#15
Carolina Oliveira de Lima, Laura Campos de Souza, Karina Lopes Devito, Maíra do Prado, Celso Neiva Campos
The aim of this study was to evaluate the root canal configuration of maxillary premolars using cone-beam computed tomography (CBCT). CBCT images of 999 maxillary premolars from a database were analysed to determine the frequency of the number of roots, root canals and Vertucci's classification. The associations among these variables were evaluated by Chi-square test (P < 0.05). In the first premolars, 42.2% of single-rooted teeth had a type II configuration, whereas 98.7% of 2-rooted teeth showed type IV...
September 19, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30230109/effect-of-root-canal-debridement-on-inflammatory-cytokine-levels
#16
Jue Ann Soh, Sultan Omer Sheriff, Nivasheni A/P Ramar, Shaju J Pulikkotil, Venkateshbabu Nagendrababu, Prasanna Neelakantan, Fabian Davamani Amalraj
In endodontic infections, inflammatory mediators such as cytokines are released, recruited and retained until the infection is eradicated. Root canal therapy is performed to prevent the spread of infection. The aim of this study was to investigate the effects of root canal debridement (cleaning and shaping) on periapical inflammation by measuring the levels of inflammatory cytokines, Interleukin-8 (IL-8) and Interleukin-10 (IL-10). The study includes twenty patients with pulp necrosis and asymptomatic apical periodontitis...
September 19, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30230103/mandibular-canines-with-additional-roots-an-ex-vivo-study-of-the-external-and-internal-morphology
#17
Panagiotis Beltes, Eleni Kantilieraki, Maria-Elpida Kalaitzoglou, Charalampos Beltes, Christos Angelopoulos
The aim of this study was to investigate the root and root canal morphologies of mandibular canines with additional roots using cone-beam computed tomography. Seventy-seven extracted two-rooted and one-three-rooted permanent human mandibular canines were selected. Aspects of the external morphology evaluated were crown length, root length, total length, root bifurcation distance from the cementoenamel junction, root size, and direction of the root curvature in the apical third. Features of internal morphology assessed were root canal number per root, root canal bifurcation distance from the cementoenamel junction, and the angle between the buccal or lingual canal and the main canal...
September 19, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30129090/external-invasive-resorption-possible-coexisting-factors-and-demographic-and-clinical-characteristics
#18
Avi Shemesh, Avi Levin, Joe Ben Itzhak, Yair Brosh, Evgeny Braverman, Gabriel Batashvili, Michael Solomonov
The purpose of this retrospective study was to identify the coexisting factors for EIR and to characterise EIR clinically and demographically. All cases of EIR that were referred to the endodontic department between 2011 to 2016 and diagnosed by an endodontist were evaluated. Demographic and clinical characteristics were collected and evaluated. Thirty-eight cases of EIR diagnosed between 2011 and 2016 were included in the study. Seventy-one percent of EIR cases were misdiagnosed by general practitioners. The most affected teeth were the maxillary central incisors (29% of cases) and mandibular molars (26%)...
August 20, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30113751/external-invasive-resorption-case-report-of-a-rapidly-progressive-process-in-an-impacted-maxillary-canine-during-orthodontic-treatment
#19
Avi Shemesh, Galit Birnboim-Blau, Ronen Zoizner, Joe Ben Itzhak, Michael Solomonov
External invasive resorption (EIR) is a type of external resorption that can involve the coronal, middle and apical parts of the root in its advanced stages and results in progressive loss of tooth structure. Common potential predisposing factors for EIR are orthodontic treatment and trauma. The EIR progression rate has not been described previously. This case report describes rapidly progressive EIR in an impacted maxillary canine after surgical exposure and application of directional orthodontic traction over 8 months...
August 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/30113742/effectiveness-of-calcium-and-sodium-hypochlorite-in-association-with-reciprocating-instrumentation-on-decontamination-of-root-canals-infected-with-enterococcus-faecalis
#20
Yuri Dal Bello, Gean I Mezzalira, Luis A Jaguszewski, Igor P Hoffmann, Vitor Hugo S Menchik, Doglas Cecchin, Matheus A Souza
The aim of this study was to evaluate the antimicrobial activity of sodium and calcium hypochlorite utilising reciprocating instrumentation. Sixty root canals were inoculated with E. faecalis for 14 days. Samples were divided into six groups according to decontamination protocol: G1: no treatment, G2: distilled water, G3: 2.5% sodium hypochlorite, G4: 2.5% calcium hypochlorite, G5: 5.25% sodium hypochlorite and G6: 5.25% calcium hypochlorite. Instrumentation was performed with Wave One reciprocating system (Dentsply Sirona Endodontics, York, PA, USA) in groups G2 to G6...
August 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
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