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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/29808602/a-comparison-of-hydroxyl-ion-diffusion-through-root-dentine-from-various-calcium-hydroxide-preparations
#1
Emanuel Plataniotis, Paul Abbott
Different calcium hydroxide [Ca(OH)2 ] formulations are available. The aim was to assess differences in hydroxyl ion release with different formulations. Sixty-six teeth were divided one control (n = 6) and four experimental (n = 15) groups: (i) Pulpdent Paste; (ii): DT Temporary Dressing; (iii): Ca(OH)2 powder/saline; (iv): Ca(OH)2 points; (v): no medicament. pH was measured in inner dentine and outer dentine cavities over 12 weeks. Inner dentine pH rose rapidly for all groups except the points and controls...
May 28, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29756400/ph-changes-in-radicular-dentine-associated-with-calcium-hydroxide-and-corticosteroid-antibiotic-pastes
#2
Michael Cai, Paul Abbott, Jacqueline Castro Salgado
The aim was to compare hydroxyl ion diffusion through dentine following placement of calcium hydroxide and Ledermix paste. Thirty-six teeth were divided into one control (n = 6) and three experimental (n = 10) groups - (i) Pulpdent paste; (ii) Pulpdent/Ledermix pastes; (iii) Ledermix paste and (iv) Saline. pH was measured in inner and outer dentine cavities over 12 months. Inner dentine time to maximum pH (Tmax ) was 1 week for Pulpdent and 2 weeks for Pulpdent/Ledermix. Pulpdent's outer dentine Tmax was 4 weeks and Pulpdent/Ledermix was 10 weeks...
May 13, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29665230/spindle-cell-rhabdomyosarcoma-of-the-anterior-mandible-manifesting-as-a-periapical-lesion-of-pulpal-origin-case-report
#3
Vanitha Sadhasivam, I Anand Sherwood, James L Gutmann, N Gururaj, V Mahalakshmi, Daffney M Doss
A 25-year-old male patient presented with swelling and pain in the mandibular anterior region for the previous 6 months. He had a history of repeated traumatic episodes associated with his lower incisors. A periapical radiograph revealed a radiolucent lesion involving the apices of the lower incisors, whereas cone beam computed tomography revealed a large osteolytic lesion involving all mandibular incisors and loss of labial and lingual cortical plates. Histological, immunohistochemical and bone scan examination of the curetted tissue established a differential diagnosis of spindle cell rhabdomyosarcoma of the anterior mandible...
April 17, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29656483/stress-distributions-in-internal-resorption-cavities-restored-with-different-materials-at-different-root-levels-a-finite-element-analysis-study
#4
Tuğrul Aslan, Yakup Üstün, Emir Esim
The aim of this study was to evaluate the stresses within simulated roots with internal resorption cavities at the apical, middle and coronal root levels, after obturation with gutta-percha and/or MTA utilising finite element analysis (FEA). Mandibular premolar teeth with internal resorption cavities at different root levels were modelled. Models were restored with gutta-percha and/or MTA. An oblique force of 300 N was applied and stress evaluations were carried out. In the MTA-filled resorption models, the stresses were distributed more homogeneously than the gutta-percha filled models, and the stress concentrations were lower in the remaining dentinal tissues...
April 15, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29611889/mandibular-mesial-root-canal-morphology-using-micro-computed-tomography-in-a-brazilian-population
#5
Marília F Marceliano-Alves, Carolina Oliveira Lima, Ligia Gonçalves do Prado Martins Nayre Bastos, Adilia Maria Vieira Bruno, Fernanda Vidaurre, Thais Machado Coutinho, Sandra Rivera Fidel, Ricardo Tadeu Lopes
To assess the root canal system morphology of mandibular molars by means of micro-computed tomography, one hundred and four mandibular first molars were investigated and the following were evaluated: Vertucci's classification, the presence of lateral canals and the number of apical foramina. Mesial root canal surface area and volume were obtained by the CTAn and CTvol software. The type of root canal isthmi was classified applying the Hsu & Kim and Fan criteria. The most frequent root canal configuration was Vertucci type IV (46...
April 3, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29665306/efficacy-of-xp-endo-finisher-files-in-endodontics
#6
LETTER
Sankeerthana Kolli, Saravana Karthikeyan Balasubramanian, Karthikeyan Kittappa, Sekar Mahalaxmi
No abstract text is available yet for this article.
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29168274/antimicrobial-properties-of-calcium-hydroxide-dressing-when-used-for-long-term-application-a-systematic-review
#7
REVIEW
Garima Sharma, Hany Mohamed Aly Ahmed, Peter S Zilm, Giampiero Rossi-Fedele
This review aims to evaluate the antimicrobial efficacy of calcium hydroxide against endodontic pathogens when used for 7 days or longer. A systematic electronic literature search was performed in the PubMed, Embase and EBSCO Dentistry & Oral Sciences Source databases using appropriate key words to identify investigations written in the English language that examined the association between the contact time of intracanal calcium hydroxide dressing and its antimicrobial properties. There were no exclusions based on study design...
April 2018: 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
#8
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...
April 2018: 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
#9
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...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28736921/supplementary-techniques-for-pain-control-during-root-canal-treatment-of-lower-posterior-teeth-with-irreversible-pulpitis-a-systematic-review-and-meta-analysis
#10
Pinpana Tupyota, Pattama Chailertvanitkul, Malinee Laopaiboon, Chetta Ngamjarus, Paul V Abbott, Suttichai Krisanaprakornkit
The purpose of this systematic review and meta-analysis was to evaluate utilisation of supplementary techniques for pain control during root canal treatment of lower molars with irreversible pulpitis. The literature was searched using electronic databases up to year 2012. Seventeen studies with 1504 participants were included and each study compared experimental interventions with a standard treatment, i.e. the inferior alveolar nerve block. Changing the injection techniques or supplemental injection had no significant effect on pulp anaesthesia compared to the standard treatment (P = 1...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28643935/efficacy-of-self-adjusting-file-xp-endo-finisher-and-passive-ultrasonic-irrigation-on-the-removal-of-calcium-hydroxide-paste-from-an-artificial-standardized-groove
#11
Anda Kfir, Nuphar Blau-Venezia, Tomer Goldberger, Itzhak Abramovitz, Ronald Wigler
The purpose of this study was to compare the effectiveness of self-adjusting file (SAF), XP-endo finisher (XP), passive ultrasonic irrigation (PUI) and conventional syringe and needle irrigation (SNI) in the removal of Ca(OH)2 from an artificial groove. Eighty mandibular incisors with single oval canals were prepared to size 40/0.04 and split longitudinally. A standardised groove was prepared in the apical third and filled with Ca(OH)2 . The root halves were reassembled and divided into two control groups (n = 4) and four experimental groups (n = 18) according to the removal methods used...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28643416/influence-of-academic-training-in-endodontics-and-implantology-on-decision-making-in-undergraduate-students
#12
Kenneth Pineda, Rufino Bueno, Carlos Alvarado, Francesc Abella, Miguel Roig, Fernando Duran-Sindreu
PURPOSE: To evaluate the effect of academic training on decision-making in a group of undergraduates who have undergone training in endodontics and implantology. BASIC PROCEDURES: A single group of undergraduate dentistry students (n = 65) was given a survey consisting of 15 endodontic cases. Each case included periapical radiographs and clinical photographs. Students were asked to select one of the eight proposed treatments. In their 4th year, the students first responded to the survey after completing endodontics...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28643401/novel-navigation-technique-for-the-endodontic-treatment-of-a-molar-with-pulp-canal-calcification-and-apical-pathology
#13
Xilin Shi, Shiyong Zhao, Weidong Wang, Qianzhou Jiang, Xuechao Yang
Apical periodontitis, the inflammation of periapical tissue, commonly requires root canal treatment to achieve apical healing. However, if it is accompanied by pulp canal calcification, the treatment becomes complicated, and locating the root canal can be challenging. This case report describes a novel approach for treating a molar with pulp canal calcification and apical pathology. Due to the risk of perforation during treatment, a digitally printed template was used to assist in accurately locating the root canal...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28620977/2016-ase-undergraduate-essay-competition-candidate-information
#14
Alice Chen
The aim of this review is to discuss the role of medicaments and materials used in teeth undergoing root canal treatment and how they affect the overall prognosis of root canal treated teeth. Irrigants, medicaments and materials play a vital role in RCT. They reduce the overall microbial load within the root canal system, help reduce inter-appointment pain, and induce apexification during RCT of permanent teeth with immature apices. In addition, they also help create a hermetic coronal and periradicular seal to entomb any residual microorganisms within the canals and prevent future ingress of contaminants into the root canal system and subsequent reinfection...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/28418157/effect-of-canal-preparation-with-trushape-and-vortex-rotary-instruments-on-three-dimensional-geometry-of-oval-root-canals
#15
Ana Arias, Frank Paqué, Stephanie Shyn, Sarah Murphy, Ove A Peters
The purpose of this study was to assess the geometry of non-round root canals after preparation with TRUShape (a novel instrument with s-shaped longitudinal design) in comparison to conventional rotary instrumentation using micro-computed tomography. Twenty distal root canals of mandibular molars were randomly distributed in two groups to be shaped with either TRUShape or Vortex rotaries. Percentages of unprepared surface and volume of dentin removal for the entire canal and for the apical 4 mm were calculated...
April 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29573115/accuracy-and-consistency-of-electronic-root-canal-length-determination-with-electrically-isolating-rubber-stoppers
#16
Susanne Kowollik, David Sonntag
The aim of this study was to investigate the influence of an isolating silicone stopper on the measuring accuracy and display consistency of three electrometric apex locators. The length of the canal to the major foramen was determined electrometrically using an ISO size 10 file in 20 extracted teeth each with natural crowns (Group I), amalgam fillings (Group II) or base-metal crowns (Group III), The measurements were performed with isolating or conventional silicone stoppers using three different apex locators with a four-level scale consistency rating...
March 23, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29573071/endodontic-decision-making-for-asymptomatic-root-filled-teeth-with-apical-periodontitis-a-radiographic-survey
#17
Nessrin A Taha, Zakereyya S Albashaireh, Rmdan G Alfied
The aim of the study was to compare decision making for asymptomatic root-filled teeth among dentists with differing educational backgrounds. Case scenarios based on 14 radiographs were created and 150 participants were asked to choose from five alternative treatment decisions and to state the rationale. Demographic data of the participants were recorded. Frequency distribution and cross-tabulation were performed; chi square testing was used for comparisons and logistic regression was performed to detect significant differences...
March 23, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29573065/the-prevalence-of-second-canals-in-the-mesiobuccal-root-of-maxillary-molars-a-cone-beam-computed-tomography-study
#18
Nelson Alexander Fernandes, Dirk Herbst, Thomas Corne Postma, Belinda Kathleen Bunn
The aim of this study was to determine the prevalence of MB2 canals in permanent maxillary molars utilising CBCT; in patients attending a university hospital. A total of 200 patient scans, (100 female and 100 male patients), were enrolled in the study. In total, 800 teeth were analysed, and teeth with additional canals in their MB roots (MB2) were identified. First maxillary molar teeth exhibited the highest prevalence of MB2 canals, 92% and 87%, for teeth 16 and 26, respectively. Second maxillary molar teeth showed a lower prevalence of MB2 canals, 69% and 65%, for the 17 and 27, respectively...
March 23, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29450945/clinical-application-of-3d-technology-for-tooth-autotransplantation-a-case-report
#19
Keunhee Kim, Hee-Seung Choi, Nan-Sim Pang
This report presents two cases of tooth autotransplantation using cone-beam computed tomography (CBCT), the three-dimensional (3D) simulation dental planning software and a computer-aided rapid prototyping (CARP) model. Two hopeless teeth of adult patients were replaced as their third molar teeth. Before deciding the autotransplantation, diagnostic CBCT images were acquired and imported to SimPlant software. The SimPlant dental program was used for surgical simulation prior to autotransplantation, which created 3D images of the available donor teeth and recipient site tooth and superimposed the images to display their morphological similarity...
February 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29450937/adaptation-of-mineral-trioxide-aggregate-to-dentine-walls-compared-with-other-root-end-filling-materials-a-systematic-review
#20
REVIEW
Selen Küçükkaya Eren, Peter Parashos
This systematic review analysed the literature comparing marginal adaptation of mineral trioxide aggregate (MTA) with other filling materials in root-end cavities. The PubMed, Ovid, Web of Science, SCOPUS, and Cochrane library databases were searched using appropriate keywords related to root-end filling materials and adaptation. Of 38 articles assessed, 20 met the inclusion criteria. No in vivo study was identified. In 10 studies, MTA gave the best marginal adaptation results, but no significant differences were found between MTA and any of the tested filling materials in seven studies...
February 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
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