{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T01:38:34Z","timestamp":1772156314290,"version":"3.50.1"},"reference-count":19,"publisher":"FapUNIFESP (SciELO)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Braz. Dent. J."],"published-print":{"date-parts":[[2007]]},"abstract":"<jats:p>Portland cement has been analyzed and compared to mineral trioxide aggregate (MTA) because of their chemical similarity. The possibility of using this material as a less expensive alternative to MTA in dental practice should be considered. In view of this, the present study compared the components of a Portland cement (Votoran\u00ae) to two commercial brands of MTA (Pro-Root\u2122 and MTA-Angelus\u00ae). Twelve specimens of each material were fabricated and examined by scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) to obtain their percentage of chemical elements. The means of the chemical elements found in each material was compared by descriptive statistics. Bismuth was present only in MTA cements to provide radiopacity. In conclusion, the tested cements have similar components, which supports, as far as composition is concerned, the possible clinical use of Portland as an option to MTA.<\/jats:p>","DOI":"10.1590\/s0103-64402007000100002","type":"journal-article","created":{"date-parts":[[2007,9,28]],"date-time":"2007-09-28T04:14:51Z","timestamp":1190952891000},"page":"3-7","source":"Crossref","is-referenced-by-count":66,"title":["Comparative chemical study of MTA and portland cements"],"prefix":"10.1590","volume":"18","author":[{"given":"Mar\u00edlia Gerhardt de","family":"Oliveira","sequence":"first","affiliation":[{"name":"Pontifical Catholic University of Rio Grande do Sul, Brazil"}]},{"given":"Cristina Braga","family":"Xavier","sequence":"additional","affiliation":[{"name":"Federal University of Pelotas, Brazil"}]},{"given":"Fl\u00e1vio Fernando","family":"Demarco","sequence":"additional","affiliation":[{"name":"Federal University of Pelotas, Brazil"}]},{"given":"Ant\u00f4nio Luis Barbosa","family":"Pinheiro","sequence":"additional","affiliation":[{"name":"Federal University of Bahia, Brazil"}]},{"given":"Aline Tempel","family":"Costa","sequence":"additional","affiliation":[{"name":"Pontifical Catholic University of Rio Grande do Sul, Brazil"}]},{"given":"Daniel Humberto","family":"Pozza","sequence":"additional","affiliation":[{"name":"Federal University of Bahia, Brazil"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"398","DOI":"10.1016\/S1079-2104(99)70237-4","article-title":"Considerations in the selection of a root-end filling material","volume":"87","author":"Johnson BR","year":"1999","journal-title":"Oral Surg Oral Med Oral Pathol Oral Radiol Endod","ISSN":"https:\/\/id.crossref.org\/issn\/1079-2104","issn-type":"print"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1038\/sj.bdj.4800450","article-title":"Sealing ability of amalgam, super EBA cement, and MTA when used as retrograde filling 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