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Mineral trioxide aggregate

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https://www.readbyqxmd.com/read/28808634/white-mineral-trioxide-aggregate-mixed-with-calcium-chloride-dihydrate-chemical-analysis-and-biological-properties
#1
Hany Mohamed Aly Ahmed, Norhayati Luddin, Thirumulu Ponnuraj Kannan, Khairani Idah Mokhtar, Azlina Ahmad
OBJECTIVES: This study aimed to evaluate the chemical and biological properties of fast-set white mineral trioxide aggregate (FS WMTA), which was WMTA combined with calcium chloride dihydrate (CaCl2·2H2O), compared to that of WMTA. MATERIALS AND METHODS: Surface morphology, elemental, and phase analysis were examined using scanning electron microscope (SEM), energy dispersive X-ray microanalysis (EDX), and X-ray diffraction (XRD), respectively. The cytotoxicity and cell attachment properties were evaluated on human periodontal ligament fibroblasts (HPLFs) using methyl-thiazol-diphenyltetrazolium (MTT) assay and under SEM after 24 and 72 hours, respectively...
August 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28808470/non-surgical-retreatment-of-maxillary-lateral-incisor-with-unusual-anatomy-a-case-report-and-mini-review
#2
Ashraf Shubbar, Behnam Bolhari, Nooshin Fakhari, Parvin Alemi, Ali Nosrat
Knowledge about internal anatomy plays a crucial role in the success of the root canal treatment. Many studies on internal anatomy have repeatedly reported that maxillary lateral incisors have only one canal. The primary aim of this article was to describe successful non-surgical retreatment of a permanent maxillary lateral incisor with two root canals and open apices. The treatment was carried out using dental operating microscope and the canals were obturated with mineral trioxide aggregate (MTA) as an apical plug...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808469/endodontic-surgery-of-a-symptomatic-overfilled-mta-apical-plug-a-histological-and-clinical-case-report
#3
Saeed Asgary, Sara Fayazi
This case report presents the successful surgical treatment of a symptomatic open apex upper central incisor with a failed overfilled mineral trioxide aggregate (MTA) apical plug. Unintentional overextension of the MTA had occurred two years before the initial visit. An apical lesion adjacent to the excess MTA was radiographically detectable. Endodontic surgery was performed using calcium-enriched mixture (CEM) cement as a root-end filling material. Curettage of the apical lesion showed a mass of unset MTA particles; histopathological examination revealed fragments of MTA and granulation tissues...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808466/apical-microleakage-in-root-canals-containing-broken-rotary-instruments
#4
Mostafa Godiny, Reza Hatam, Atefeh Khavid, Shahryar Khanlari
INTRODUCTION: Broken instruments in root canals complicate routine endodontic treatment. This study aimed to compare apical microleakage in root canals containing broken rotary instruments filled with mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement, laterally compacted gutta-percha and injected gutta-percha. METHODS AND MATERIALS: In this in vitro, experimental study, 80 extracted human premolars were decoronated and then the roots were randomly divided into four groups (n=20)...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808461/the-effect-of-calcium-chloride-on-push-out-bond-strength-of-calcium-enriched-mixture-cement-and-mineral-trioxide-aggregate
#5
Mohammad Mehdi Shokouhi, Abbas Abbaszadegan, Amin Ameri, Seyed Masih Sharifian, Mohammadreza Nabavizadeh
INTRODUCTION: This in vitro study investigated the effect of adding 10% calcium chloride (CaCl2) on push out bond strength of calcium-enriched mixture (CEM) cement and mineral trioxide aggregate (MTA) to root canal dentin. METHODS AND MATERIALS: A total of 120 root dentin slices with 2 mm thickness were prepared from sixty single-rooted human teeth. Dentinal discs were enlarged to achieve 1.3 mm diameter. The specimens were randomly allocated into eight groups (n=15)...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808460/the-effect-of-intracanal-medicaments-on-microleakage-of-mineral-trioxide-aggregate-apical-plugs
#6
Mohammadreza Nabavizadeh, Fariborz Moazzami, Mohsen Bahmani, Hossein Mirhadi
INTRODUCTION: The purpose of this in vitro study was to evaluate the effect of calcium hydroxide, double and triple antibiotic paste on the sealing ability of mineral trioxide aggregate (MTA) apical plugs. METHODS AND MATERIALS: A total of 90 extracted teeth with single canals were prepared and randomly divided into four experimental groups (n=20). Intra-canal medicaments were applied for 3 weeks. MTA was placed through the access opening and condensed to the apical area and then fluid filtration technique was utilized to evaluate sealing ability after 1, 7, 14 and 30 days...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808458/effect-of-propylene-glycol-on-the-sealing-ability-of-mineral-trioxide-aggregate-and-calcium-enriched-mixture-cement-apical-barriers
#7
Alireza Adl, Fereshte Sobhnamayan, Nooshin Sadat Shojaee, Fateme Tahmasebi Azad, Mohsen Bahmani
INTRODUCTION: Propylene glycol (PG) improves the handling, physical, and chemical properties of mineral trioxide aggregate (MTA). This study aimed to evaluate the effect of PG on the sealing ability of MTA and calcium-enriched mixture (CEM) apical barriers. METHODS AND MATERIALS: A total of 70 extracted human maxillary single-rooted teeth were prepared using ProTaper rotary system. The apical 3 mm of the root tips were resected and the root canals were enlarged with Peeso reamers up to #4, to create open apex teeth...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808453/bond-strength-of-white-mineral-trioxide-aggregate-with-and-without-disodium-hydrogen-phosphate-with-different-liquid-to-powder-ratios
#8
Hadi Mokhtari, Sara Jafarizadeh, Hamid Reza Mokhtari Zonouzi, Mehrdad Lotfi, Mohammad Forough Reyhani, Aydin Sohrabi
INTRODUCTION: Mineral trioxide aggregate (MTA) can be used in the treatment of irritated vital pulp and repair of root perforations. However, the initial reaction of inflammatory cells to this material and also its setting time are not ideal. Studies have shown that disodium hydrogen phosphate (DHP), decreases the setting time of MTA, with no effect on its pH. This study was undertaken to evaluate the effect of DHP on push-out bond strength of MTA at different liquid-to-powder ratios...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28807371/treatment-outcome-following-direct-pulp-capping-using-bioceramic-materials-in-mature-permanent-teeth-with-carious-exposure-a%C3%A2-pilot%C3%A2-retrospective-study
#9
S Linu, M S Lekshmi, V S Varunkumar, V G Sam Joseph
INTRODUCTION: The aim of this study was to investigate the sequelae of direct pulp capping (DPC) using mineral trioxide aggregate (MTA) and Biodentine in mature permanent teeth with carious exposure. METHODS: Clinical records of 30 patients (15 each with MTA and Biodentine) treated with DPC technique from January 2015 to June 2015 were retrieved. Success rates (based on symptoms, sensibility tests, and radiographic analysis) and adverse events were analyzed. RESULTS: The patients were reviewed at 1, 3, 6, 12, and 18 months after treatment...
August 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28780718/clinical-and-radiographic-comparison-of-biodentine-mineral-trioxide-aggregate-and-formocresol-as-pulpotomy-agents-in-primary-molars
#10
P Juneja, S Kulkarni
AIM: To compare the clinical and radiographic success rates of three different pulpotomy agents in primary molars after 18 months. METHODS: The study was carried out with 51 primary molars of children aged 5-9 years old. The teeth were randomly assigned to the experimental or control groups. After coronal pulp removal and haemostasis, the remaining pulp tissue was covered with Biodentine(®) or mineral trioxide aggregate in the experimental groups. In the control group, formocresol was placed with a cotton pellet over the pulp tissue for 5 min and after removal the pulp tissue was covered with zinc oxide-eugenol (ZOE) paste...
August 5, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28761256/root-canal-treatment-of-a-fused-mandibular-incisor-using-cone-beam-computed-tomography-as-a-diagnostic-aid
#11
Maura Cristiane Orçati Dorielo, Alcides Gonini-Junior, Durvalino de Oliveira, Renata Tarnoschi Bordignon, Alvaro Henrique Borges
Tooth fusion consists of the union of crowns by the enamel and/or dentin. We describe a case of a patient who presented with a fistula in the apical portion of teeth 32 and 33. Clinically, tooth 32 showed increased crown width in relation to other teeth in the same arch. Radiographic examination evidenced fusion of tooth 32 with a possible supernumerary tooth. Cone-beam computed tomography was used to confirm the radiographic findings and revealed incomplete apex formation of the supernumerary tooth. The fused tooth was subjected to root canal treatment...
January 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28761141/effects-of-pulpotomy-using-mineral-trioxide-aggregate-on-prostaglandin-transporter-and-receptors-in-rat-molars
#12
Naoto Ohkura, Naoki Edanami, Ryosuke Takeuchi, Aiko Tohma, Mariko Ohkura, Nagako Yoshiba, Kunihiko Yoshiba, Hiroko Ida-Yonemochi, Hayato Ohshima, Takashi Okiji, Yuichiro Noiri
Mineral trioxide aggregate (MTA) is a commonly used dental pulp-capping material with known effects in promoting reparative dentinogenesis. However, the mechanism by which MTA induces dentine repair remains unclear. The aim of the present study was to investigate the role of prostaglandin E2 (PGE2) in dentine repair by examining the localisation and mRNA expression levels of its transporter (Pgt) and two of its receptors (Ep2 and Ep4) in a rat model of pulpotomy with MTA capping. Ep2 expression was detected in odontoblasts, endothelial cells, and nerve fibres in normal and pulpotomised tissues, whereas Pgt and Ep4 were immunolocalised only in the odontoblasts...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28751918/cellular-responses-in-human-dental-pulp-stem-cells-treated-with-three-endodontic-materials
#13
Alejandro Victoria-Escandell, José Santiago Ibañez-Cabellos, Sergio Bañuls-Sánchez de Cutanda, Ester Berenguer-Pascual, Jesús Beltrán-García, Eva García-López, Federico V Pallardó, José Luis García-Giménez, Antonio Pallarés-Sabater, Ignacio Zarzosa-López, Manuel Monterde
Human dental pulp stem cells (HDPSCs) are of special relevance in future regenerative dental therapies. Characterizing cytotoxicity and genotoxicity produced by endodontic materials is required to evaluate the potential for regeneration of injured tissues in future strategies combining regenerative and root canal therapies. This study explores the cytotoxicity and genotoxicity mediated by oxidative stress of three endodontic materials that are widely used on HDPSCs: a mineral trioxide aggregate (MTA-Angelus white), an epoxy resin sealant (AH-Plus cement), and an MTA-based cement sealer (MTA-Fillapex)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28749049/mineral-trioxide-aggregate-enhances-the-osteogenic-capacity-of-periodontal-ligament-stem-cells-via-nf-%C3%AE%C2%BAb-and-mapk-signaling-pathways
#14
Yanqiu Wang, Yixiang Zhou, Lin Jin, Xiyao Pang, Yadie Lu, Zilu Wang, Yan Yu, Jinhua Yu
INTRODUCTION: Mineral trioxide aggregate (MTA), as a bioactive material, has a widespread application in clinical practice. To date, the effects of MTA on the proliferation and differentiation of human periodontal ligament stem cells (hPDLSCs) remain unclear. MATERIALS AND METHODS: hPDLSCs were isolated from human periodontal ligament tissues and cultured with MTA conditioned media. Cell counting kit-8 (CCK-8) assay was performed to assess the proliferation capacity of MTA-treated hPDLSCs...
July 27, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28748048/effect-of-different-mixing-methods-on-the-bacterial-microleakage-of-white-portland-cement-and-white-mineral-trioxide-aggregate
#15
Shahriar Shahi, Asmar Bashirzadeh, Hamid Reza Yavari, Farnaz Jafari, Amin Salem Milani, Negin Ghasemi, Mohammad Samiei
Background. of this study was to investigate the effect of different mixing methods (ultrasonic, amalgamator, and conventional) on the bacterial microleakage of white Portland cement (WPC) and white MTA (Tooth-colored Formula, Dentsply, Tulsa Dental, Tulsa, OK). Methods. A hundred human single-rooted permanent teeth were decoronated to obtain 14 mm of root length in all the samples. The root canals were cleaned, shaped and obturated. Three millimeters of each root apex were cut off and randomly divided into 6 groups of 15 each (3 groups for WMTA and 3 groups for WPC, each with 3 different mixing methods) and 2 positive and negative control groups (each containing 5 samples)...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28735788/effect-of-mineral-trioxide-aggregate-apical-plug-thickness-on-fracture-resistance-of-immature-teeth
#16
Ersan Çiçek, Neslihan Yılmaz, M Murat Koçak, Baran Can Sağlam, Sibel Koçak, Burcu Bilgin
INTRODUCTION: The aim of this study was to compare the fracture resistance of simulated immature teeth after using different thicknesses of mineral trioxide aggregate (MTA) apical plugs. METHODS: Fifty-two human maxillary anterior teeth were used. Five teeth were the positive control group; they were prepared using Peeso reamers to simulate immature teeth without any access cavity preparation. Access cavities of the 47 teeth were prepared, and the canals were instrumented with Peeso reamers...
July 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28735787/chemical-physical-properties-and-apatite-forming-ability-of-mineral-trioxide-aggregate-flow
#17
Bruno Martini Guimarães, Rodrigo Ricci Vivan, Bruno Piazza, Murilo Priori Alcalde, Clovis Monteiro Bramante, Marco Antonio Hungaro Duarte
INTRODUCTION: This study aimed to analyze the chemical-physical properties, including pH, volumetric change, radiopacity, and apatite-forming ability in simulated body fluid, of a new tricalcium silicate material (MTA Flow; Ultradent Products Inc, South Jordan, UT). METHODS: MTA Flow was tested in comparison with MTA Angelus (Angelus, Londrina, PR, Brazil). The pH of soaking water was tested up to 168 hours in deionized water. In the solubility test, the root-end fillings of 20 acrylic teeth were scanned twice by micro-computed tomographic imaging before and after immersion in ultrapure water for 168 hours...
July 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28722005/a-conservative-management-of-iatrogenically-damaged-distal-root-of-the-mandibular-second-molar
#18
Rashmi Bansal, Sonali Roy, Praveen Chandra, Anuraag Gurtu, Rahul Pandey
Trauma to the adjacent hard and soft tissue is the most common iatrogenic injury during extraction of the mandibular third molar. As every functional component of the dental arch is of prime importance in contemporary dental practice, the major concern must be in conserving the tooth and its structure as much as possible. The present case discusses the application of this conservative approach for management of iatrogenically damaged distal root of the mandibular second molar during extraction of impacted third molar, in which excessive guttering of alveolar bone and fractured apical third of distal root of 37 was observed radiographically...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28722003/severe-unintentional-extrusion-of-mineral-trioxide-aggregate-during-apexification
#19
Levent Demiriz, Ebru Hazar Bodrumlu
The aim of this report was to present the long-term clinical and radiographic outcomes of a case including severe unintentional extrusion of mineral trioxide aggregate (MTA). An 11-year-old boy was referred with a previously traumatized permanent central incisor which was temporarily treated by using calcium hydroxide root canal filling material. Since having an open apex and a large periapical lesion, root canal treatment with MTA apexification was planned. During the apexification process, a huge amount of MTA was unintentionally extruded into periapical tissues...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28712637/treatment-options-for-failing-regenerative-endodontic-procedures-report-of-3-cases
#20
Antonis Chaniotis
INTRODUCTION: Regenerative treatments in necrotic immature teeth are suggested as alternatives to conventional multiple or single-step apexification procedures. Although case reports and case series provide promising results, the treatment protocol is not yet fully established and regenerative procedure might fail. Once failure is encountered, the apexification treatment options still remain. METHODS: Repetition of the regenerative procedure after initial revitalization failure has not been suggested yet...
July 13, 2017: Journal of Endodontics
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