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Surface microhardness of three thicknesses of mineral trioxide aggregate in different setting conditions
Noushin Shokouhinejad, Leila Jafargholizadeh, Mehrfam Khoshkhounejad, Mohammad Hossein Nekoofar, Maryam Raoof
Restor Dent Endod 2014;39(4):253-257.   Published online August 20, 2014
DOI: https://doi.org/10.5395/rde.2014.39.4.253
AbstractAbstract PDFPubReaderePub
Objectives

This study aimed to compare the surface microhardness of mineral trioxide aggregate (MTA) samples having different thicknesses and exposed to human blood from one side and with or without a moist cotton pellet on the other side.

Materials and Methods

Ninety cylindrical molds with three heights of 2, 4, and 6 mm were fabricated. In group 1 (dry condition), molds with heights of 2, 4, and 6 mm (10 molds of each) were filled with ProRoot MTA (Dentsply Tulsa Dental), and the upper surface of the material was not exposed to any additional moisture. In groups 2 and 3, a distilled water- or phosphate-buffered saline (PBS)-moistened cotton pellet was placed on the upper side of MTA, respectively. The lower side of the molds in all the groups was in contact with human blood-wetted foams. After 4 day, the Vickers microhardness of the upper surface of MTA was measured.

Results

In the dry condition, the 4 and 6 mm-thick MTA samples showed significantly lower microhardness than the 2 mm-thick samples (p = 0.003 and p = 0.001, respectively). However, when a distilled water- or PBS-moistened cotton pellet was placed over the MTA, no significant difference was found between the surface microhardness of samples having the abovementioned three thicknesses of the material (p = 0.210 and p = 0.112, respectively).

Conclusions

It could be concluded that a moist cotton pellet must be placed over the 4 to 6 mm-thick MTA for better hydration of the material. However, this might not be necessary when 2 mm-thick MTA is used.

Citations

Citations to this article as recorded by  
  • MTA as modulator of periapical tissue healing in rat molar: A histological study
    Christian Khoswanto, Ira Kusuma Dewi
    Journal of Oral Biology and Craniofacial Research.2024; 14(2): 201.     CrossRef
  • An Update on Endodontic Microsurgery of Mandibular Molars: A Focused Review
    Sun Mi Jang, Euiseong Kim, Kyung-San Min
    Medicina.2021; 57(3): 270.     CrossRef
  • Assessment of Mineral Trioxide Aggregate Setting in Simulated Root Canal with Different Root Canal Wall Thickness: In Vitro Study
    Radovan Žižka, Radim Čtvrtlík, Jan Tomáštík, Kamila Fačevicová, Ondřej Vencálek, Jiří Šedý, David Marinčák
    Applied Sciences.2021; 11(4): 1727.     CrossRef
  • Evaluation of the bioactivity of fluoride‐enriched mineral trioxide aggregate on osteoblasts
    S. Proksch, J. Brossart, K. Vach, E. Hellwig, M. J. Altenburger, L. Karygianni
    International Endodontic Journal.2018; 51(8): 912.     CrossRef
  • Antimicrobial and antibiofilm activities of MTA supplemented with bismuth lipophilic nanoparticles
    Rene HERNANDEZ-DELGADILLO, Casiano DEL ANGEL-MOSQUEDA, Juan Manuel SOLÍS-SOTO, Silvia MUNGUIA-MORENO, Nayely PINEDA-AGUILAR, Rosa Isela SÁNCHEZ-NÁJERA, Shankararaman CHELLAM, Claudio CABRAL-ROMERO
    Dental Materials Journal.2017; 36(4): 503.     CrossRef
  • Carbohydrate-electrolyte drinks exhibit risks for human enamel surface loss
    Mary Anne Sampaio de Melo, Vanara Florêncio Passos, Juliana Paiva Marques Lima, Sérgio Lima Santiago, Lidiany Karla Azevedo Rodrigues
    Restorative Dentistry & Endodontics.2016; 41(4): 246.     CrossRef
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Cytotoxicity and physical properties of tricalcium silicate-based endodontic materials
Young-Eun Jang, Bin-Na Lee, Jeong-Tae Koh, Yeong-Joon Park, Nam-Eok Joo, Hoon-Sang Chang, In-Nam Hwang, Won-Mann Oh, Yun-Chan Hwang
Restor Dent Endod 2014;39(2):89-94.   Published online March 21, 2014
DOI: https://doi.org/10.5395/rde.2014.39.2.89
AbstractAbstract PDFPubReaderePub
Objectives

The aim of this study was to evaluate the cytotoxicity, setting time and compressive strength of MTA and two novel tricalcium silicate-based endodontic materials, Bioaggregate (BA) and Biodentine (BD).

Materials and Methods

Cytotoxicity was evaluated by using a 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-5-((phenylamino)carbonyl)-2H-tetrazolium hydroxide (XTT) assay. Measurements of 9 heavy metals (arsenic, cadmium, chromium, copper, iron, lead, manganese, nickel, and zinc) were performed by inductively coupled plasma-mass spectrometry (ICP-MS) of leachates obtained by soaking the materials in distilled water. Setting time and compressive strength tests were performed following ISO requirements.

Results

BA had comparable cell viability to MTA, whereas the cell viability of BD was significantly lower than that of MTA. The ICP-MS analysis revealed that BD released significantly higher amount of 5 heavy metals (arsenic, copper, iron, manganese, and zinc) than MTA and BA. The setting time of BD was significantly shorter than that of MTA and BA, and the compressive strength of BA was significantly lower than that of MTA and BD.

Conclusions

BA and BD were biocompatible, and they did not show any cytotoxic effects on human periodontal ligament fibroblasts. BA showed comparable cytotoxicity to MTA but inferior physical properties. BD had somewhat higher cytotoxicity but superior physical properties than MTA.

Citations

Citations to this article as recorded by  
  • Effect of Vital Pulp Therapy Biomaterials on Tooth Discolouration: A Review of the Literature
    Maedeh Gilvari Sarshari, Kiana Shakeri, Ardavan Parhizkar, Naresh Kasoju
    International Journal of Biomaterials.2025;[Epub]     CrossRef
  • Evaluation of the physical properties of bromelain-modified biodentine for direct pulp capping
    Paridhi Agrawal, Manoj Chandak, Aditya Patel, Jay Bhopatkar
    BMC Oral Health.2024;[Epub]     CrossRef
  • Evaluation of bioactivity, biocompatibility, and antibacterial properties of tricalcium silicate bone cement modified with wollastonite/ fluorapatite glass and glass-ceramic
    H.K. Abd El-Hamid, A.M. Fayad, R.L. Elwan
    Ceramics International.2024; 50(14): 25322.     CrossRef
  • Evaluation of the chemical, physical, and biological properties of a newly developed bioceramic cement derived from cockle shells: an in vitro study
    Monthip Wannakajeepiboon, Chankhrit Sathorn, Chatvadee Kornsuthisopon, Busayarat Santiwong, Thanakorn Wasanapiarnpong, Pairoj Linsuwanont
    BMC Oral Health.2023;[Epub]     CrossRef
  • Strength of a cement-based dental material: Early age testing and first micromechanical modeling at mature age
    Petr Dohnalík, Christian Hellmich, Gilles Richard, Bernhard L. A. Pichler
    Frontiers in Bioengineering and Biotechnology.2023;[Epub]     CrossRef
  • Calcium silicate and calcium aluminate cements for dentistry reviewed
    Carolyn Primus, James L. Gutmann, Franklin R. Tay, Anna B. Fuks
    Journal of the American Ceramic Society.2022; 105(3): 1841.     CrossRef
  • Biomimetic Approaches in Clinical Endodontics
    Naresh Kumar, Nazrah Maher, Faiza Amin, Hani Ghabbani, Muhammad Sohail Zafar, Francisco Javier Rodríguez-Lozano, Ricardo E. Oñate-Sánchez
    Biomimetics.2022; 7(4): 229.     CrossRef
  • Effect of different manipulations on the physical, chemical and microstructural characteristics of Biodentine
    Mariana Domingos Pires, Joana Cordeiro, Isabel Vasconcelos, Mariana Alves, Sérgio André Quaresma, António Ginjeira, Josette Camilleri
    Dental Materials.2021; 37(7): e399.     CrossRef
  • Minimal Intervention in Dentistry: A Literature Review on Biodentine as a Bioactive Pulp Capping Material
    Naji Ziad Arandi, Mohammad Thabet, Mona Abbassy
    BioMed Research International.2021;[Epub]     CrossRef
  • Chitosan-Based Accelerated Portland Cement Promotes Dentinogenic/Osteogenic Differentiation and Mineralization Activity of SHED
    Hasan Subhi, Adam Husein, Dasmawati Mohamad, Nik Rozainah Nik Abdul Ghani, Asma-Abdullah Nurul
    Polymers.2021; 13(19): 3358.     CrossRef
  • Material Pulp Cells and Tissue Interactions
    Nastaran Meschi, Biraj Patel, Nikita B. Ruparel
    Journal of Endodontics.2020; 46(9): S150.     CrossRef
  • Biological Effects of Tricalcium Silicate Nanoparticle-Containing Cement on Stem Cells from Human Exfoliated Deciduous Teeth
    Yoonsun Jung, Ji-Young Yoon, Kapil Dev Patel, Lan Ma, Hae-Hyoung Lee, Jongbin Kim, Jung-Hwan Lee, Jisun Shin
    Nanomaterials.2020; 10(7): 1373.     CrossRef
  • Physicochemical, mechanical and cytotoxicity evaluation of chitosan-based accelerated portland cement
    Hasan Subhi, Adam Husein, Dasmawati Mohamad, Asma-Abdullah Nurul
    Journal of Materials Research and Technology.2020; 9(5): 11574.     CrossRef
  • Tricalcium silicate cements: osteogenic and angiogenic responses of human bone marrow stem cells
    Mohamed R. W. Ali, Manal Mustafa, Asgeir Bårdsen, Athanasia Bletsa
    European Journal of Oral Sciences.2019; 127(3): 261.     CrossRef
  • Bioactive tri/dicalcium silicate cements for treatment of pulpal and periapical tissues
    Carolyn M. Primus, Franklin R. Tay, Li-na Niu
    Acta Biomaterialia.2019; 96: 35.     CrossRef
  • Effect of phytic acid on the setting times and tensile strengths of calcium silicate‐based cements
    Ozgur Uyanik, Emre Nagas, Selen Kucukkaya Eren, Zafer C. Cehreli, Pekka K. Vallittu, Lippo V.J. Lassila
    Australian Endodontic Journal.2019; 45(2): 241.     CrossRef
  • Effects of four novel root-end filling materials on the viability of periodontal ligament fibroblasts
    Makbule Bilge Akbulut, Pembegul Uyar Arpaci, Ayce Unverdi Eldeniz
    Restorative Dentistry & Endodontics.2018;[Epub]     CrossRef
  • Biodentine™ material characteristics and clinical applications: a 3 year literature review and update
    S. Rajasekharan, L. C. Martens, R. G. E. C. Cauwels, R. P. Anthonappa
    European Archives of Paediatric Dentistry.2018; 19(1): 1.     CrossRef
  • Root perforations: a review of diagnosis, prognosis and materials
    Carlos Estrela, Daniel de Almeida Decurcio, Giampiero Rossi-Fedele, Julio Almeida Silva, Orlando Aguirre Guedes, Álvaro Henrique Borges
    Brazilian Oral Research.2018;[Epub]     CrossRef
  • Effects of chelating agent and acids on Biodentine
    V Ballal, JN Marques, CN Campos, CO Lima, RA Simão, M Prado
    Australian Dental Journal.2018; 63(2): 170.     CrossRef
  • Biological interactions of a calcium silicate based cement (Biodentine™) with Stem Cells from Human Exfoliated Deciduous teeth
    Eirini Athanasiadou, Maria Paschalidou, Anna Theocharidou, Nikolaos Kontoudakis, Konstantinos Arapostathis, Athina Bakopoulou
    Dental Materials.2018; 34(12): 1797.     CrossRef
  • Retention of BioAggregate and MTA as coronal plugs after intracanal medication for regenerative endodontic procedures: an ex vivo study
    Suzan Abdul Wanees Amin, Shaimaa Ismail Gawdat
    Restorative Dentistry & Endodontics.2018;[Epub]     CrossRef
  • Management of Dens Invaginatus Type II Associated with Immature Apex and Large Periradicular Lesion Using Platelet-rich Fibrin and Biodentine
    Shruti Goel, Ruchika Roongta Nawal, Sangeeta Talwar
    Journal of Endodontics.2017; 43(10): 1750.     CrossRef
  • Brain aluminium accumulation and oxidative stress in the presence of calcium silicate dental cements
    K Demirkaya, B Can Demirdöğen, Z Öncel Torun, O Erdem, E Çırak, YM Tunca
    Human & Experimental Toxicology.2017; 36(10): 1071.     CrossRef
  • Calcium silicate‐based cements: composition, properties, and clinical applications
    Alaa E. Dawood, Peter Parashos, Rebecca H.K. Wong, Eric C. Reynolds, David J. Manton
    Journal of Investigative and Clinical Dentistry.2017;[Epub]     CrossRef
  • Biological response of commercially available different tricalcium silicate-based cements and pozzolan cement
    Serhat Köseoğlu, Tuğba Pekbağryank, Ebru Kucukyilmaz, Mehmet Sağlam, Sukru Enhos, Ayşe Akgün
    Microscopy Research and Technique.2017; 80(9): 994.     CrossRef
  • Modified tricalcium silicate cement formulations with added zirconium oxide
    Xin Li, Kumiko Yoshihara, Jan De Munck, Stevan Cokic, Pong Pongprueksa, Eveline Putzeys, Mariano Pedano, Zhi Chen, Kirsten Van Landuyt, Bart Van Meerbeek
    Clinical Oral Investigations.2017; 21(3): 895.     CrossRef
  • Cytotoxic effects of mineral trioxide aggregate, calcium enrichedmixture cement, Biodentine and octacalcium pohosphate onhuman gingival fibroblasts
    Eshagh A. Saberi, Narges Farhadmollashahi, Faroogh Ghotbi, Hamed Karkeabadi, Roholla Havaei
    Journal of Dental Research, Dental Clinics, Dental Prospects.2016; 10(2): 75.     CrossRef
  • The effect of working time on the displacement of Biodentine™ beneath prefabricated stainless steel crown: a laboratory study
    Alaa E. Dawood, David J. Manton, Peter Parashos, Rebecca H. K. Wong
    Journal of Investigative and Clinical Dentistry.2016; 7(4): 391.     CrossRef
  • Evaluation of reparative dentin formation of ProRoot MTA, Biodentine and BioAggregate using micro-CT and immunohistochemistry
    Jia Kim, Young-Sang Song, Kyung-San Min, Sun-Hun Kim, Jeong-Tae Koh, Bin-Na Lee, Hoon-Sang Chang, In-Nam Hwang, Won-Mann Oh, Yun-Chan Hwang
    Restorative Dentistry & Endodontics.2016; 41(1): 29.     CrossRef
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Washout resistance of fast-setting pozzolan cement under various root canal irrigants
Ga-Yeon Jang, Su-Jung Park, Seok-Mo Heo, Mi-Kyung Yu, Kwang-Won Lee, Kyung-San Min
Restor Dent Endod 2013;38(4):248-252.   Published online November 12, 2013
DOI: https://doi.org/10.5395/rde.2013.38.4.248
AbstractAbstract PDFPubReaderePub
Objectives

Fast-setting pozzolan cement (Endocem, Maruchi) was recently developed. The aim of this study was to investigate the effects of various root canal irrigants on the washout of Endocem in comparison to the previously marketed mineral trioxide aggregate (ProRoot; Dentsply) in a furcal perforation model.

Materials and Methods

ProRoot and Endocem were placed into acrylic molds on moist Oasis. Each mold was then immediately exposed to either physiologic saline, 2.5% sodium hypochlorite (NaOCl), or 2% chlorhexidine (CHX) under gentle shaking for five minutes. Washout testing was performed by scoring scanning electron microscope (SEM) images.

Results

Endocem exhibited higher washout resistance compared to ProRoot, especially in the NaOCl group.

Conclusions

These results suggest that Endocem can be considered a useful repair material for furcal perforation, especially in a single-visit scenario.

Citations

Citations to this article as recorded by  
  • The Washout Resistance of Bioactive Root-End Filling Materials—A Systematic Review
    Joanna Falkowska-Ostrowska, Włodzimierz Dura
    Journal of Clinical Medicine.2025; 14(7): 2446.     CrossRef
  • Effect of Vital Pulp Therapy Biomaterials on Tooth Discolouration: A Review of the Literature
    Maedeh Gilvari Sarshari, Kiana Shakeri, Ardavan Parhizkar, Naresh Kasoju
    International Journal of Biomaterials.2025;[Epub]     CrossRef
  • Stereomicroscopic Evaluation of Sealing Ability of Three Different Furcal Perforation Repair Materials: An In vitro Study
    Sriparna De, N Sathyajith Naik, Shivangi Sharma, Pallavi Vashisth, Rasleen Dua, Priya Maheshwari
    Contemporary Clinical Dentistry.2024; 15(4): 259.     CrossRef
  • Chemical and physical properties of radiopaque Portland cement formulation with reduced particle size
    Hoda Mohamed ELNAWAWY, Muralithran Govindan KUTTY, Noor Azlin YAHYA, Noor Hayaty ABU KASIM, Paul Roy COOPER, Josette CAMILLERI, Hany Mohamed Aly AHMED
    Dental Materials Journal.2024; 43(5): 672.     CrossRef
  • The Washout Resistance of Bioactive Root-End Filling Materials
    Joanna Falkowska, Tomasz Chady, Włodzimierz Dura, Agnieszka Droździk, Małgorzata Tomasik, Ewa Marek, Krzysztof Safranow, Mariusz Lipski
    Materials.2023; 16(17): 5757.     CrossRef
  • Effects of fast- and slow-setting calcium silicate–based root-end filling materials on the outcome of endodontic microsurgery: a retrospective study up to 6 years
    Dohyun Kim, Hyunjung Lee, Minsun Chung, Sunil Kim, Minju Song, Euiseong Kim
    Clinical Oral Investigations.2020; 24(1): 247.     CrossRef
  • Novel anti-biofouling bioactive calcium silicate-based cement containing 2-methacryloyloxyethyl phosphorylcholine
    Jae-Sung Kwon, Myung-Jin Lee, Ji-Young Kim, Dohyun Kim, Jeong-Hyun Ryu, Sungil Jang, Kwang-Mahn Kim, Chung-Ju Hwang, Sung-Hwan Choi, Jinkee Hong
    PLOS ONE.2019; 14(1): e0211007.     CrossRef
  • Surface and vertical dimensional changes of mineral trioxide aggregate and biodentine in different environmental conditions
    Hacer Aksel, Selen Küçükkaya Eren, Sevinc Askerbeyli Õrs, Eda Karaismailoğlu
    Journal of Applied Oral Science.2018;[Epub]     CrossRef
  • Push-out Bond Strength of Fast-setting Mineral Trioxide Aggregate and Pozzolan-based Cements: ENDOCEM MTA and ENDOCEM Zr
    Emmanuel João Nogueira Leal Silva, Nancy Kudsi Carvalho, Marta Reis da Costa Labanca Guberman, Marina Prado, Plinio Mendes Senna, Erick M. Souza, Gustavo De-Deus
    Journal of Endodontics.2017; 43(5): 801.     CrossRef
  • Dynamic intratubular biomineralization following root canal obturation with pozzolan‐based mineral trioxide aggregate sealer cement
    Yeon‐Jee Yoo, Seung‐Ho Baek, Kee‐Yeon Kum, Won‐Jun Shon, Kyung‐Mi Woo, WooCheol Lee
    Scanning.2016; 38(1): 50.     CrossRef
  • Comparison of Setting Time, Compressive Strength, Solubility, and pH of Four Kinds of MTA
    Jing-Ling Che, Jae-Hwan Kim, Seon-Mi Kim, Nam-ki Choi, Hyun-Joo Moon, Moon-Jin Hwang, Ho-Jun Song, Yeong-Joon Park
    Korean Journal of Dental Materials.2016; 43(1): 61.     CrossRef
  • A Randomized Controlled Study of the Use of ProRoot Mineral Trioxide Aggregate and Endocem as Direct Pulp Capping Materials: 3-month versus 1-year Outcomes
    Youngjune Jang, Minju Song, Il-Sang Yoo, Yunjung Song, Byoung-Duck Roh, Euiseong Kim
    Journal of Endodontics.2015; 41(8): 1201.     CrossRef
  • Odontogenic effects of a fast-setting calcium-silicate cement containing zirconium oxide
    Kyoung-A KIM, Yeon-Mi YANG, Young-Sun KWON, Yun-Chan HWANG, Mi-Kyung YU, Kyung-San MIN
    Dental Materials Journal.2015; 34(4): 432.     CrossRef
  • D90: The Strongest Contributor to Setting Time in Mineral Trioxide Aggregate and Portland Cement
    William N. Ha, Dale P. Bentz, Bill Kahler, Laurence J. Walsh
    Journal of Endodontics.2015; 41(7): 1146.     CrossRef
  • A Randomized Controlled Study of the Use of ProRoot Mineral Trioxide Aggregate and Endocem as Direct Pulp Capping Materials
    Minju Song, Minji Kang, Hyeon-Cheol Kim, Euiseong Kim
    Journal of Endodontics.2015; 41(1): 11.     CrossRef
  • Physical properties and biological/odontogenic effects of an experimentally developed fast-setting α-tricalcium phosphate-based pulp capping material
    Jun-Bong Lee, Su-Jung Park, Hyun-Ha Kim, Young-Sun Kwon, Kwang-Won Lee, Kyung-San Min
    BMC Oral Health.2014;[Epub]     CrossRef
  • Effect of Mineral Trioxide Aggregate Surface Treatments on Morphology and Bond Strength to Composite Resin
    Joo-Hee Shin, Ji-Hyun Jang, Sang Hyuk Park, Euiseong Kim
    Journal of Endodontics.2014; 40(8): 1210.     CrossRef
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  • 17 Crossref
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Case Report
Failure of orthograde MTA filling: MTA wash-out?
Yuran Kim, Chan-Young Lee, Euiseoung Kim, Il-Young Jung
J Korean Acad Conserv Dent 2011;36(6):510-514.   Published online November 30, 2011
DOI: https://doi.org/10.5395/JKACD.2011.36.6.510
AbstractAbstract PDFPubReaderePub

Mineral trioxide aggregate (MTA), which was originally developed for repair of root perforations, is a biocompatible material with numerous clinical applications in endodontics. MTA must be allowed to set in the presence of moisture to optimize the material's physical and chemical properties. In the clinic, occasionally unset MTA has been detected after application of MTA on the tooth, and the reason has been unclear.

This case report presents MTA washed-out for several years after placement at the root apex as an apical plug, and discusses the reason and things to consider in clinics.

Citations

Citations to this article as recorded by  
  • Modified Mineral Trioxide Aggregate—A Versatile Dental Material: An Insight on Applications and Newer Advancements
    C. Pushpalatha, Vismaya Dhareshwar, S. V. Sowmya, Dominic Augustine, Thilla Sekar Vinothkumar, Apathsakayan Renugalakshmi, Amal Shaiban, Ateet Kakti, Shilpa H. Bhandi, Alok Dubey, Amulya V. Rai, Shankargouda Patil
    Frontiers in Bioengineering and Biotechnology.2022;[Epub]     CrossRef
  • Comparative evaluation of volumetric changes of three different retrograde calcium silicate materials placed under different pH condititions
    So Yeon Kwon, Min-Seock Seo
    BMC Oral Health.2020;[Epub]     CrossRef
  • Effects of RetroMTA on osteoblastic differentiation in MC3T3-E1 cells
    Hyo-Il Lee, Sung-Hyeon Choi, Ji-Hyun Jang, Hoon-Sang Chang, Yun-Chan Hwang, In-Nam Hwang, Bin-Na Lee, Won-Mann Oh
    Korean Journal of Dental Materials.2018; 45(2): 97.     CrossRef
  • The effect of human blood on the setting and surface micro-hardness of calcium silicate cements
    Minju Song, Wonyoung Yue, Soyeon Kim, Wooksung Kim, Yaelim Kim, Jeong-Woong Kim, Euiseong Kim
    Clinical Oral Investigations.2016; 20(8): 1997.     CrossRef
  • Biological Effects and Washout Resistance of a Newly Developed Fast-setting Pozzolan Cement
    Yoorina Choi, Su-Jung Park, Seoung-Hoon Lee, Yun-Chan Hwang, Mi-Kyung Yu, Kyung-San Min
    Journal of Endodontics.2013; 39(4): 467.     CrossRef
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  • 5 Crossref
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Basic Researchs
Physical properties of novel composite using Portland cement for retro-filling material
Sang-Jin Lee, Ok-In Cho, Jiwan Yum, Jeong-Kil Park, Bock Hur, Hyeon-Cheol Kim
J Korean Acad Conserv Dent 2010;35(6):445-452.   Published online November 30, 2010
DOI: https://doi.org/10.5395/JKACD.2010.35.6.445
AbstractAbstract PDFPubReaderePub
Objectives

The aim of this study was to compare apical sealing ability and physical properties of MTA, MTA - AH-plus mixture (AMTA) and experimental Portland cement - Epoxy resin mixture (EPPC) for a development of a novel retro-filling material.

Materials and Methods

Forty-nine extracted roots were instrumented and filled with gutta-percha. Apical root was resected at 3 mm and the retro-filling cavity was prepared for 3 mm depth. Roots were randomly divided into 3 groups of 15 roots each. The retro-filling was done using MTA, AMTA, and EPPC as the groups divided. Four roots were used as control groups. After setting in humid condition for 24 hours, the roots were immersed in 1% methylene blue dye solution for 72 hours to test the apical leakage. After immersion, the roots were vertically sectioned and photos were taken to evaluate microleakage. Setting times were measured with Vicat apparatus and digital radiographs were taken to evaluate aluminum equivalent thickness using aluminum step wedge. The results of microleakage and setting time were compared between groups using one-way ANOVA and Scheffe's post-hoc comparison at the significance level of 95%.

Results

AMTA and EPPC showed less microleakage than MTA group (p < 0.05). AMTA showed the highest radio-opacity than other groups and the novel EPPC showed 5 mm aluminum thickness radio-opacity. EPPC showed the shortest initial and final setting times than other groups while the MTA showed the longest (p < 0.05).

Conclusions

Under the condition of this study, the novel composite using Portland cement-Epoxy resin mixture may useful for retro-filling with the properties of favorable leakage resistance, radio-opacity and short setting time.

Citations

Citations to this article as recorded by  
  • Comparison of Setting Time, Compressive Strength, Solubility, and pH of Four Kinds of MTA
    Jing-Ling Che, Jae-Hwan Kim, Seon-Mi Kim, Nam-ki Choi, Hyun-Joo Moon, Moon-Jin Hwang, Ho-Jun Song, Yeong-Joon Park
    Korean Journal of Dental Materials.2016; 43(1): 61.     CrossRef
  • Biological Effects and Washout Resistance of a Newly Developed Fast-setting Pozzolan Cement
    Yoorina Choi, Su-Jung Park, Seoung-Hoon Lee, Yun-Chan Hwang, Mi-Kyung Yu, Kyung-San Min
    Journal of Endodontics.2013; 39(4): 467.     CrossRef
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Physical and chemical properties of experimental mixture of mineral trioxide aggregate and glass ionomer cement
Yu-Na Jeong, So-Young Yang, Bum-Jun Park, Yeong-Joon Park, Yun-Chan Hwang, In-Nam Hwang, Won-Mann Oh
J Korean Acad Conserv Dent 2010;35(5):344-352.   Published online September 30, 2010
DOI: https://doi.org/10.5395/JKACD.2010.35.5.344
AbstractAbstract PDFPubReaderePub
Objectives

The purpose of this study was to determine the setting time, compressive strength, solubility, and pH of mineral trioxide aggregate (MTA) mixed with glass ionomer cement (GIC) and to compare these properties with those of MTA, GIC, IRM, and SuperEBA.

Materials and Methods

Setting time, compressive strength, and solubility were determined according to the ISO 9917 or 6876 method. The pH of the test materials was determined using a pH meter with specified electrode for solid specimen.

Results

The setting time of MTA mixed with GIC was significantly shorter than that of MTA. Compressive strength of MTA mixed with GIC was significantly lower than that of other materials at all time points for 7 days. Solubility of 1 : 1 and 2 : 1 specimen from MTA mixed with GIC was significantly higher than that of other materials. Solubility of 1 : 2 specimen was similar to that of MTA. The pH of MTA mixed with GIC was 2-4 immediately after mixing and increased to 5-7 after 1 day.

Conclusions

The setting time of MTA mixed with GIC was improved compared with MTA. However, other properties such as compressive strength and pH proved to be inferior to those of MTA. To be clinically feasible, further investigation is necessary to find the proper mixing ratio in order to improve the drawbacks of MTA without impairing the pre-existing advantages and to assess the biocompatibility.

Citations

Citations to this article as recorded by  
  • Comparison of Setting Time, Compressive Strength, Solubility, and pH of Four Kinds of MTA
    Jing-Ling Che, Jae-Hwan Kim, Seon-Mi Kim, Nam-ki Choi, Hyun-Joo Moon, Moon-Jin Hwang, Ho-Jun Song, Yeong-Joon Park
    Korean Journal of Dental Materials.2016; 43(1): 61.     CrossRef
  • Do conventional glass ionomer cements release more fluoride than resin-modified glass ionomer cements?
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Original Article
A study on the material properties of various composite resins for core build-up
Soo-Il Shin, Dong-Hoon Shin
J Korean Acad Conserv Dent 2004;29(2):191-199.   Published online March 31, 2004
DOI: https://doi.org/10.5395/JKACD.2004.29.2.191
AbstractAbstract PDFPubReaderePub

The purposes of this study were to estimate the material properties of the recently developed domestic composite resins for core filling material (Chemical, Dual A, Dual B; Vericom, Korea) and to compare them with other marketed foreign products (CorePaste, Den-Mat, USA; Ti-Core, Essential Dental Systems, USA; Support, SCI-Pharm, USA). Six assessments were made; working time, setting time, depth of polymerization, flexural strength, bonding strength, and marginal leakage. All items were compared to ISO standards.

All domestic products satisfied the minimum requirements from ISO standards (working time: above 90 seconds, setting time: within 5 minutes), and showed significantly higher flexural strength than Core Paste. Dual A and B could, especially, reduce the setting time to 60 seconds when cured with 600 mW/cm2 light intensity. All experimental materials showed 6 mm depth of polymerization.

Bond strengths of Ti-Core and Dual B materials were significantly higher than the other materials. Furthermore, three domestic products and Ti-Core could reduce the microleakage effectively.

Citations

Citations to this article as recorded by  
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