title: Comparison of the physical and mechanical properties of MTA and portland cement.
abstract: This study evaluated and compared the pH, radiopacity, setting time, solubility, dimensional change, and compressive strength of ProRoot MTA (PMTA), ProRoot MTA (tooth colored formula) (WMTA), white Portland cement (WP), and ordinary Portland cement (OP). The results showed that PMTA and Portland cement have very similar physical properties. However, the radiopacity of Portland cement is much lower than that of PMTA. The compressive strength of PMTA was greater than Portland cement at 28 days. The major constituent of PMTA is Portland cement. Given the low cost of Portland cement and similar properties when compared to PMTA, it is reasonable to consider Portland cement as a possible substitute for PMTA in endodontic applications. However, industrially manufactured Portland cement is not approved currently for use in the United States and therefore no clinical recommendation can be made for its use in the human body. Further in vitro and in vivo tests, especially with regards its biocompatibility, should be conducted to ascertain if it meets the FDA requirements for use as a medical device.
authors.affiliation: Department of Restorative Dentistry, Faculty of Dentistry, National University of Singapore, Singapore. rsdchk@nus.edu.sg
authors.forename: Intekhab
authors.initials: I
authors.lastname: Islam
authors.forename: Hui Kheng
authors.initials: HK
authors.lastname: Chng
authors.forename: Adrian U Jin
authors.initials: AU
authors.lastname: Yap
mesh_terms: D017607:Aluminum Compounds; D001672:Biocompatible Materials; D017610:Calcium Compounds; D019245:Compressive Strength; D003287:Contrast Media; D003738:Dental Cements; D003799:Dental Stress Analysis; D018795:Device Approval; D004338:Drug Combinations; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008422:Materials Testing; D010087:Oxides; D012184:Retrograde Obturation; D012387:Root Canal Filling Materials; D017640:Silicates; D012995:Solubility; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D017607:Aluminum Compounds; D001672:Biocompatible Materials; D017610:Calcium Compounds; D003287:Contrast Media; D003738:Dental Cements; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C472247:accelerated Portland cement; C086631:mineral trioxide aggregate