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REVIEW ARTICLE - Chemical and physical properties and biocompatibility of MTA  

Chang, Seok-Woo (Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Oh, Tae-Seok (Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Yoo, Hyun-Mi (Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Dong-Sung (Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Bae, Kwang-Shik (Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry)
Kum, Kee-Yeon (Department of Conservative Dentistry, Dental Research Institute, Seoul National University Dental Hospital, Seoul National University School of Dentistry)
Publication Information
The Journal of the Korean dental association / v.50, no.3, 2012 , pp. 148-154 More about this Journal
Abstract
Mineral trioxide aggregate (MTA) is mainly composed of lime and silica. Its four major phases are tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracaclcium aluminoferrite. MTA has relatively long initial setting time (2h 45m) and various additives can be added to reduce setting time. Compressive strength of MTA increases with time and reaches 100 MPa after 28 days. MTA has high pH of 9-12.5 because of the formation of calcium hydroxide during its hydration reaction. MTA has superior sealing ability to amalgam and IRM when it is used in perforation repair or root end filling. MTA is safe in cytotoxicity and genotoxicity and have potential to promote pulpal and periapical hard tissue formation.
Keywords
biocompatibility; compressive strength; Mineral Trioxide Aggregate (MTA); pH; sealing ability; setting time;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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