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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/29064132/evaluation-of-the-influence-of-time-and-concentration-of-sodium-hypochlorite-on-the-bond-strength-of-glass-fibre-post
#1
Beau Knight, Robert M Love, Roy George
This study evaluated the effect of time and concentrations of sodium hypochlorite on the bond strength of a glass fibre post cemented in a root canal with resin cement. A total of 45 single-rooted extracted human teeth were prepared with Protaper(®) universal files, randomly allocated into nine groups and then subjected to 1% or 4% NaOCl for a period of 1 min or 2 min. Fibre posts were then bonded into the root canal, sectioned and the bond strength tested using a push-out test. A longer irrigation time resulted in a significant reduction (P < 0...
October 24, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29034602/gender-and-arch-effects-on-the-use-of-non-opioid-analgesics-for-post-endodontic-pain-reduction
#2
Wail M Elzaki, Hassan M Ziada, Neamat H Abubakr, Yahia E Ibrahim
This study aimed to evaluate the secondary outcomes of gender and arch and their impact on pain reduction following initial endodontic therapy. 185 medications, including placebo were prepared, and 170 participants completed the trial. Group 1, received a single dose of Paracetamol alone (G-1), Group 2 received combined Ibuprofen/Paracetamol (G-2). Group 3 received combined Mefenamic acid/Paracetamol (G-3), group 4 received combined Diclofenac K/Paracetamol (G-4) and Group 5 received a placebo (G-5). There were no statistically significant differences in pain reduction between males and females whilst there were statistically significant differences between them and the placebo group...
October 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29034579/rotary-versus-reciprocating-shaping-files-in-bacterial-elimination-from-long-oval-canals
#3
Andreas Krokidis, Carlo Bonfanti, Antonio C Cerutti, Nicola Barabanti, Panos Panopoulos
A comparison of the abilities of rotary versus reciprocating files to eliminate viable Enterococcus faecalis populations from the long oval root canals of extracted human teeth. Fifty teeth were contaminated and randomly distributed into two groups (n = 25 each): BT-RaCe group and WaveOne group. Two microbial samples were obtained from each tooth before (S1) and after (S2) instrumentation. The CFUs from the S1 and S2 measurements were calculated and compared between the groups. Both groups showed significantly fewer CFUs in the S2 samples (P < 0...
October 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29034570/efficacy-of-different-carriers-for-the-triple-antibiotic-powder-during-regenerative-endodontic-procedures
#4
David Hwang, Hanson Fong, James D Johnson, Avina Paranjpe
Chemical debridement during Regenerative Endodontic procedures is important. Previous research studies have evaluated various antibiotics and their concentrations but none have addressed the concern of delivering these materials. Hence, the purpose of this study was to determine what carrier could be used effectively in a clinical setting. Sixty caries-free maxillary incisors were used and inoculated with Enterococcus faecalis and divided into positive and irrigation controls and experimental groups that had triple antibiotic powder (1:1:1 ciprofloxacin:metronidazole:minocycline) delivered using various carriers: saline, cotton, sponge and methylcellulose...
October 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29034531/sealer-penetration-and-adaptation-in-root-canals-with-the-butterfly-effect
#5
Assil Russell, Lara Friedlander, Nicholas Chandler
The butterfly effect is a phenomenon seen in some roots and is related to density of dentinal tubules. The aim was to investigate penetration depth and adaptation quality of root canal sealers and ProRoot MTA into bucco-lingual and mesio-distal aspects of roots with and without the effect. One hundred and twenty teeth were decoronated at the cemento-enamel junction. Canals were prepared and assigned to obturation groups: gutta-percha with a sealer (AH Plus, EndoREZ, Kerr Pulp Canal Sealer, MTA Fillapex) or ProRoot MTA alone (each containing 10 butterfly and 10 non-butterfly roots)...
October 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28940976/fracture-resistance-of-simulated-immature-teeth-after-internal-bleaching-procedures
#6
Emel Uzunoglu, Ayhan Eymirli, Mehmet Özgür Uyanik, Emre Nagas, Zafer Cavit Çehreli
The aim of this study was to evaluate the fracture resistance of simulated immature teeth after internal bleaching. The teeth were assigned as follows (n = 12/group); Group-1: The pulp chamber was filled with ProRootMTA and bleached intracoronally with sodium perborate mixed with 37% carbamide peroxide gel; Group-2: The pulp chamber was filled with ProRootMTA without bleaching; Group-3: The pulp chamber was filled with Biodentine and bleached intracoronally as Group-1; Group-4: The pulp chamber was filled with Biodentine without bleaching; and Group-5: Teeth received no intervention (control)...
September 21, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28940453/the-haemostatic-efficacy-and-foreign-body-reaction-of-epinephrine-impregnated-polyurethane-foam-in-osseous-defects
#7
Mahmoud Torabinejad, Hyun J S Kang, Richard Maskiewicz, Anupama Grandhi
The objective of this study was to compare the haemostatic efficacy and foreign body reaction of epinephrine-impregnated cotton pellets with those of epinephrine-impregnated polyurethane (PU) foam cubes in osseous defects created in guinea pigs. Initially, these substances were randomly applied to the osseous defects in guinea pigs for 2 min and blood loss was measured. The animals were then sacrificed 7 weeks later and the degree of foreign body reaction was scored. The data were analysed by the independent-samples Kruskal-Wallis test...
September 21, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28940891/untouched-canal-areas-and-debris-accumulation-after-root-canal-preparation-with-rotary-and-adaptive-systems
#8
Rosa Maria Vianna Lopes, Fernanda Cunha Marins, Felipe Gonçalves Belladonna, Erick Miranda Souza, Gustavo De-Deus, Ricardo Tadeu Lopes, Emmanuel João Nogueira Leal Silva
This study assessed the percentage of untouched canal areas and the amount of debris accumulation after canal preparation with ProTaper Next (PTN) and Twisted File Adaptive (TFA) systems using micro-computed tomographic (micro-CT) imaging. Twenty isthmus-containing mesial roots of mandibular molars were anatomically matched through micro-CT evaluation and randomly assigned to one of the two experimental groups (n = 10), according to the system used for canal preparation: PTN (X1 and X2 files using rotary motion) and TFA (SM1 and SM2 files using adaptive motion)...
September 20, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28940721/a-comparative-in-vitro-study-of-different-techniques-for-removal-of-fibre-posts-from-root-canals
#9
Franziska Haupt, Jana Pfitzner, Michael Hülsmann
This study evaluates the effectiveness of different techniques to remove fibre posts from root filled teeth in vitro. One hundred and fifty-three extracted single-rooted teeth were decoronated, root-canal treated and divided into three groups (n = 51). Post spaces were prepared for different types of fibre posts: glass fibre, quartz fibre, carbon fibre. Each group was divided into three subgroups with regard to the post removal technique (n = 17): SonicFlex Endo, long-shaft round bur, DT-Post removal kit. Residual material, loss of dentine, working time and procedural errors were assessed using computed tomography...
September 20, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28940563/influence-of-different-sized-files-on-the-accuracy-of-two-electronic-apex-locators
#10
Fernando A Orosco, Guilherme F da Silva, Paulo H Weckwerth, Maria Thereza M Lopes, Alan M R Garcia, Marco Antônio H Duarte, Ivaldo G de Moraes
The aim of this study was to evaluate the impact of different file sizes on the accuracy of two electronic apex locators (EALs). Thirty extracted human single-rooted permanent mandibular incisors were used. A #10 K-file was inserted in the root canal until its end could be observed (using a light microscope) through the apical foramen. One millimetre was subtracted to establish working length (WL). Electronic readings were performed using MiniApex Locator or Root ZX II, from #10 K-file to #130 K-file. Statistical analysis was performed by two-way anova and Tukey test (P ≤ 0...
September 20, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28868797/effect-of-blood-contamination-on-the-compressive-strength-of-three-calcium-silicate-based-cements
#11
Mohammad S Sheykhrezae, Naghmeh Meraji, Fatemeh Ghanbari, Mohammad H Nekoofar, Behnam Bolhari, Paul M H Dummer
The aim of this study was to investigate the effect of human blood exposure on the compressive strength of various calcium silicate-based cements. Two hundred and eighty-eight customised cylindrical moulds were randomly divided into three groups according to material used: ProRoot MTA, Biodentine or CEM cement (n = 96). Each group was divided into two subgroups according to exposure conditions: PBS or blood. Then, the compressive strength of the specimens was measured after 6 h, 24 h, 72 h and 7 days...
September 3, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28857353/crystalline-phases-involved-in-the-hydration-of-calcium-silicate-based-cements-semi-quantitative-rietveld-x-ray-diffraction-analysis
#12
Renata Grazziotin-Soares, Mohammad H Nekoofar, Thomas Davies, Roberto Hübler, Naghmeh Meraji, Paul M H Dummer
Chemical comparisons of powder and hydrated forms of calcium silicate cements (CSCs) and calculation of alterations in tricalcium silicate (Ca3 SiO5 ) calcium hydroxide (Ca(OH)2 ) are essential for understanding their hydration processes. This study aimed to evaluate and compare these changes in ProRoot MTA, Biodentine and CEM cement. Powder and hydrated forms of tooth coloured ProRoot MTA, Biodentine and CEM cement were subjected to X-ray diffraction (XRD) analysis with Rietveld refinement to semi-quantitatively identify and quantify the main phases involved in their hydration process...
August 30, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833942/clinical-and-histological-responses-of-human-dental-pulp-to-mta-and-combined-mta-treated-dentin-matrix-in-partial-pulpotomy
#13
Payman Mehrvarzfar, Paul V Abbott, Fatemeh Mashhadiabbas, Mehdi Vatanpour, Sohrab Tour Savadkouhi
The aim of this study was to compare the responses of mineral trioxide aggregate (MTA) and combined MTA/treated dentin matrix (TDM) as direct pulp capping material. In this clinical trial study, 33 intact third molars in 11 healthy volunteers (three molars in each) were included. Partial pulpotomies were performed in a split mouth manner in two of the third molars in each patient randomly and the third tooth had used as TDM source. The coronal dentin was chopped to dentine chips and transformed to TDM using different concentrations of ethylene diamine tetraacetic acid (EDTA) solution...
August 18, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833871/electric-pulp-test-threshold-responses-in-healthy-incisors-canines-premolars-and-molars
#14
Marija Šimović, Ivan Pavušek, Ana Ivanišević Malčić, Silvana Jukić, Goranka Prpić Mehičić, Jurica Matijević
The purpose of this study was to determine the range of threshold responses of healthy dental pulps and test the reproducibility of the electric pulp test (EPT). Forty-nine dental students participated in the study. Sound teeth in both arches, except third molars, were included. The teeth were isolated using cotton rolls and dried with compressed air, and the threshold responses were recorded. Participants stopped the stimulus increase by pressing the switch at the first sensation of discomfort. The measurements were repeated after 30 days...
August 18, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28804934/complicated-untreated-apical-periodontitis-causing-paraesthesia-a-case-report
#15
Domenico Ricucci, Simona Loghin, José F Siqueira
The purpose of this article was to report a case of untreated apical periodontitis resulting in severe late complications. A patient with an asymptomatic crowned root canal-treated mandibular molar revealing a radiographic substandard endodontic treatment and a slight periapical radiolucency was made aware of the treatment options and opted for no treatment. The lesion slightly increased in size after 6 years, but the tooth remained asymptomatic and endodontic retreatment was again refused. After 4 more years, the patient presented with an abscess and severe pain, complicated by paraesthesia of the left chin and lip...
August 14, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833960/apec-news-june-2017
#16
Sanjay Miglani, Hyeon-Cheol Henry Kim, James Brichko
No abstract text is available yet for this article.
August 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833959/queensland
#17
Ian Davies
No abstract text is available yet for this article.
August 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833958/president-s-report
#18
Donna Richards
No abstract text is available yet for this article.
August 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833957/victoria
#19
Sasaluck Pakdeethai
No abstract text is available yet for this article.
August 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28833956/new-south-wales
#20
Elizabeth Lou
No abstract text is available yet for this article.
August 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
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