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Iranian Endodontic Journal

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https://www.readbyqxmd.com/read/30083219/partial-necrosis-consequence-of-the-infection-spreading-from-an-adjacent-apical-periodontitis-a-case-report
#1
Saeed Asgary, Leyla Roghanizadeh
As the dental pulp could not be directly inspected before endodontic treatment, indirect evaluation of the pulp status via (para)/clinical tests should be performed which need careful inspection. This report presents a root-treated right maxillary first molar with recurrent abscess formation and a radiolucent periradicular lesion surrounding the distobuccal root of the right maxillary second molar. The patient underwent surgical retreatment, employing CEM root-end filling, which resulted in no relief from sign/symptoms...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083218/combined-endodontic-and-surgical-management-of-twin-rooted-maxillary-lateral-incisor-with-a-palatogingival-groove
#2
Arshad Hasan, Javeria Ali Khan
A case of unusual anatomy in a maxillary lateral incisor is presented. A 20-year old female presented with failing endodontics. Clinical examination and radiographs revealed poorly obturated maxillary left lateral incisor with an untreated patent second root and a palatogingival groove. A decision was made to treat the tooth non-surgically. After removing gutta-percha from main canal, the orifice of second root could not be located from inside the chamber. After determining the position of this root to be mesial and palatal to main canal, gingival tissue was removed from mesio-palatal side and access was extended to include the cingulum and orifice was located mesio-palatally...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083217/management-of-multiple-dental-trauma-case-report-with-eight-year-follow-up
#3
Alessandra Soares Ditzel, Ana Paula Tulio Manfron, Fernando Henrique Westphalen, Ulisses Xavier da Silva Neto, Alexandre Kowalczuck, Everdan Carneiro, Vânia Portela Ditzel Westphalen
This case report documents the clinical approach adopted for two maxillary incisors with intrusion and horizontal root fracture in the middle third after trauma. The proposed procedures involved maintaining pulp vitality and periodontal stability of the fractured teeth with 8 years of follow-up.
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083216/endodontic-treatment-of-a-maxillary-lateral-incisor-with-two-canals-a-case-report
#4
Eshaghali Saberi, Shima Bijari, Forough Farahi
Variations in the number of roots and canals have been extensively reported in endodontic literature. One rare variation is presence of two separate root canals in maxillary lateral incisors. This study reports a maxillary lateral incisor with two canals. Although rare, knowledge about this anatomical variation can help in successful endodontic treatment of such teeth.
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083215/an-interdisciplinary-approach-for-management-of-an-extensive-carious-premolar
#5
Wong Lishen, Tew In Meei, Alizae Marny Mohamed, Dalia Abdullah
The principle of ferrule effect is of prime importance when restoring an endodontically treated tooth. A severely broken down tooth due to subgingival caries almost always end up with extraction as inadequate ferrule effect would compromise the predictability of restorative treatment. This clinical case report describes a treatment approach that combines non-surgical endodontic treatment, orthodontic extrusion and prosthetic rehabilitation to restore the function and aesthetic aspect of an extensively carious premolar with compromised prognosis...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083214/cleaning-efficacy-of-root-canal-irrigation-with-positive-and-negative-pressure-system
#6
Ira Widjiastuti, Dani Rudyanto, Tamara Yuanita, Taufan Bramantoro, Wawan Aries Widodo
Introduction: The purpose of this study was to analyze the differences between irrigant replacement in the positive and negative pressure irrigation systems regarding root canal cleaning efficacy. Methods and Materials: A total of 27 extracted single-root mandibular premolars with 18-20 mm root canal length were decoronated and equally divided into three groups ( n =9) based on the irrigation system used: positive irrigation with side-vented needle as the control group (C), positive irrigation with an open-ended needle as the first group (T1) and negative irrigation as the second group (T2)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083213/effect-of-different-water-to-powder-ratios-on-the-compressive-strength-of-calcium-enriched-mixture-cement
#7
Nooshin Sadat Shojaee, Alireza Adl, Dana Jafarpur, Fereshte Sobhnamayan
Introduction: Calcium-enriched Mixture (CEM) cement is an endodontic reparative material available in the form of powder and liquid. The purpose of this in vitro study was to determine the effect of different water-to-powder (WP) proportions on the compressive strength (CS) of the cement. Method Materials and: One gram of CEM cement powder was mixed with either 0.33 g, 0.4 g or 0.5 g CEM liquid. The mixture was transferred to metallic cylindrical molds ( n =10) with internal dimensions of 6±0...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083212/cytotoxicity-of-endodontic-irrigants-on-human-periodontal-ligament-cells
#8
Hamed Karkehabadi, Hosnieh Yousefifakhr, Saeede Zadsirjan
Introduction: Root canal irrigation has an extremely important role in the success of endodontic treatment. During endodontic treatment, the irrigants will be in contact with pulpal and periapical tissues. The purpose of this study was to clarify the potential toxicological implications of NaOCl, EDTA, MTAD, CHX and QMix on periapical and periodontal tissues. Methods and Materials: Cytotoxicity of solutions was evaluated on cultured human periodontal ligament (hPDL) that were carefully removed from the middle third of premolar roots...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083211/influence-of-two-preparation-techniques-on-transportation-of-simulated-type-ii-root-canals
#9
Saeed Moradi, Maryam Gharechahi, Fatemeh Bonyadimanesh
Introduction: The purpose of this study was to evaluate the changes of canal configuration in simulated type II root canals that were instrumented by two different techniques using ProTaper Universal rotary files. Methods and Materials: Sixty simulated type II root canal in resin blocks were made and randomly divided into two groups. Pre and post-instrumentation images of resin blocks were prepared using stereomicroscope from three surfaces of blocks included two longitudinal section (mesiodistally and buccolingually), and one cross sectional surface...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083210/comparison-of-digital-radiography-conventional-film-and-self-developing-film-for-working-length-determination
#10
Manucher Raees Sameye, Amin Mohammad Bahalkeh, Arash Izadi, Ania Jafaryan
Introduction: Accurate measurement of working length of the root canal is an important factor in endodontic treatment, because it determines the level of cleaning and shaping of the canal. This can be performed using numerous methods including conventional, digital and self-developing methods, which are studied in this work. Methods and Materials: In this study, 50 maxillary molars with appropriate conditions for the analysis were collected and their mesiobuccal canal lengths were estimated by three different types of radiographs with and without file...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083209/root-canal-morphology-of-maxillary-second-molars-according-to-age-and-gender-in-a-selected-iranian-population-a-cone-beam-computed-tomography-evaluation
#11
Mandana Naseri, Mohammad Ali Mozayeni, Yaser Safi, Maryam Heidarnia, Alireza Akbarzadeh Baghban, Negar Norouzi
Introduction: This study sought to assess root canal morphology of maxillary second molars regarding age and gender in an Iranian population using cone-beam computed tomography (CBCT). Methods and Materials: Totally, 157 maxillary second molars of patients presenting to a radiology clinic were evaluated on CBCT scans. Tooth length, number of roots, root fusion, coronal and sagittal root deviation, number of canals per root, prevalence of second mesiobuccal canal, root canal morphology according to the Vertucci's classification and the correlation of these variables with age and gender were evaluated...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083208/effects-of-different-irrigation-solutions-on-root-fracture-resistance-an-in-vitro-study
#12
Melissa Cristina Lantigua Domínguez, Victor Feliz Pedrinha, Lorena Cássia Oliveira Athaide da Silva, Mara Eliane Soares Ribeiro, Sandro Cordeiro Loretto, Patrícia de Almeida Rodrigues
Introduction: The aim of this in vitro study was to evaluate the effects of sodium hypochlorite (NaOCl), ethylenediaminetetraacetic acid (EDTA), chlorhexidine (CHX) and hydroxyethylidene bisphosphonate (HEBP), also known as etidronate, on susceptibility to root fracture resistance (RFR) in human teeth subjected to endodontic preparation. Methods and Materials: Seventy extracted single-rooted human teeth were selected, endodontically prepared using the ProTaper Next rotary system (PTN, Dentsply, Maillefer, Ballaigues, Switzerland) and then randomly divided according to the following irrigation regimes ( n =10): G1, saline solution (0...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083207/root-preparation-of-deciduous-teeth-efficacy-of-waveone-and-protaper-systems-with-and-without-passive-ultrasonic-irrigation
#13
Bruno Marques da Silva, Fabrício Scaini, Flávia Sens Fagundes Tomazinho, Carla Castiglia Gonzaga, Marilisa Carneiro Leão Gabardo, Flares Baratto-Filho
Introduction: The aim of this study was to compare root preparation of deciduous teeth with WaveOne Large (WO) and ProTaper F4 (PT) instruments with or without passive ultrasonic irrigation (PUI). Methods and Materials: Forty-eight deciduous teeth were scanned before and after root preparation and divided in four groups ( n =12): WO+EDTA (WO); WO+EDTA with PUI (WOPUI); PTF+EDTA (PT); and PT+EDTA with PUI (PTPUI). Root canal enlargement by micro-computed tomography and root canal cleaning by scanning electron microscopy (SEM) were analyzed...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083206/the-micro-shear-bond-strength-of-various-resinous-restorative-materials-to-aged-biodentine
#14
Mohammad Hossein Nekoofar, Fariba Motevasselian, Mansoreh Mirzaei, Esmaeil Yassini, Hoda Pouyanfar, Paul Mh Dummer
Introduction: The type of materials and application time of veneering restorations on calcium silicate cements are important factors which influence the interfacial properties. The aim of this study was to measure the micro-shear bond strength of a resin composite (RC) using several adhesive systems and a resin-modified glass ionomer cement (RM-GIC) to different aged Biodentine specimens. Methods and Materials: A total of 15 Biodentine blocks were prepared and assigned to three aging periods: 12 min, one week and one month...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083205/regaining-apical-patency-with-manual-and-reciprocating-instrumentation-during-retreatment
#15
Rafaela Cristina Trierveiler Paiva, Caroline Solda, Felipe Vendramini, José Roberto Vanni, Flávia Baldissarelli Marcon, Volmir João Fornari, Mateus Silveira Martins Hartmann
Introduction: Different techniques have been proposed to help achieving apical patency during endodontic treatment and retreatment. The objective of this in vitro study was to compare reestablishment of apical patency in teeth previously subjected to root canal treatment using manual and reciprocating instruments. Methods and Materials: A total of 40 single-rooted extracted human mandibular incisors were selected and prepared using the Hero 642 sequence to 45/0...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083204/antibacterial-effects-of-chitosan-formocresol-and-cmcp-as-pulpectomy-medicament-on-enterococcus-%C3%A2-faecalis-staphylococcus-aureus-and-streptococcus-%C3%A2-mutans
#16
Zhila Imani, Zahra Imani, Leila Basir, Mohsen Shayeste, Effat Abbasi Montazeri, Vahid Rakhshan
Introduction: During pulpectomy of primary teeth, cytotoxic medicaments such as formocresol or camphor mono-chlorophenol (CMCP) are used as medicaments. For the first time it is theorized that chitosan can substitute these traditional materials used in pulpectomy of infectious primary teeth. Methods and Materials: This preliminary in vitro study consisted of two separate phases ( n =75), each of which assessed the antibacterial effects of chitosan versus formocresol and CMCP and positive/negative controls ( n =15) on three bacteria types [ Enterococcus ‎ faecalis, Staphylococcus aureus, Streptococcus ‎ mutans , ( n =5 per subgroup)]...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083203/effect-of-root-repair-materials-and-bioactive-glasses-on-microhardness-of-dentin
#17
Olinto Santos Cardoso, Meire Coelho Ferreira, Edilausson Moreno Carvalho, Paulo Vitor Campos Ferreira, José Bauer, Ceci Nunes Carvalho
Introduction: The use of bioactive glasses to re-establish or increase mechanical properties of the root dentin may be an interesting alternative. The aim of this study was to evaluate the effect of root repair materials and bioactive glasses on the microhardness of human root dentin. Methods and Materials: Sixty-four sectioned palatal roots of human molars were prepared and two slices were obtained of the middle third of each root (one corresponding to the control group, without treatment, and the other to the experimental group)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083202/the-influence-of-dentin-age-and-the-presence-of-cracks-in-removal-of-the-root-filling-material
#18
Lilian Rachel de Lima Aboud, Ricardo Tadeu Lopes, Bernardo Camargo Dos Santos, Thaís Maria Pires Dos Santos, Leonardo Aboud Costa Viana, Miriam F Zaccaro Scelza
Introduction: This study evaluated the removal of the filling material during endodontic retreatment considering the presence of cracks and the dentin age. Methods and Materials: A total of 20 freshly extracted single-rooted teeth were categorized into the following two groups according to the age of the patients: Group Young (Y; aged 18-30 years) and Group Old (O; aged ≥60 years). Each tooth specimen was scanned by microcomputed tomography (micro-CT) subsequently after endodontic retreatment with the Reciproc instruments (REC)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083201/biodentine-for-furcation-perforation-repair-an-animal-study-with-histological-radiographic-and-micro-computed-tomographic-assessment
#19
Miguel Cardoso, Maria Dos Anjos Pires, Vitor Correlo, Rui Reis, Manuel Paulo, Carlos Viegas
Introduction: Biodentine has been scarcely studied as a furcation perforation (FP) repair material, mostly by in vitro methodologies. This animal study aimed to compare the histological responses, radiographic, and micro-computed tomographic (micro-CT) outcomes after FP repair with Biodentine or ProRoot MTA (MTA) in dogs' teeth. Methods and Materials: Fifty teeth from five dogs were divided into 4 groups: MTA ( n =20, FP repaired with ProRoot MTA), BDT ( n =20, FP repaired with Biodentine), PC ( n =5, positive control, FP without repair) and NC ( n =5, negative control, without perforation)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/30083200/analysis-of-demineralized-chemical-substances-for-disinfecting-gutta-percha-cones
#20
George Táccio de Miranda Candeiro, Eduardo Akisue, Fabrícia Campelo Correia, Edmilson Dos Santos Sousa, Mônica Sampaio do Vale, Elaine Faga Iglecias, Giulio Gavini
Introduction: The aim of the present research was to evaluate the effectiveness of 5% malic acid, 17% EDTA and 10% citric acid solutions used to disinfect gutta-percha cones contaminated by Enterococcus faecalis (ATCC 29212). Methods and Materials: Two hundred and ten previously sterilized gutta-percha cones were contaminated with E. faecalis at concentration of 1.5×108 CFU/mL. The cones were immersed in 5% malic acid, 17% EDTA, 10% citric acid, 1% NaOCl and 2...
2018: Iranian Endodontic Journal
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