Author
Marco Antonio Hungaro Duarte
Other affiliations: Sacred Heart University, Federal University of Ceará
Bio: Marco Antonio Hungaro Duarte is an academic researcher from University of São Paulo. The author has contributed to research in topics: Root canal & Medicine. The author has an hindex of 45, co-authored 321 publications receiving 6995 citations. Previous affiliations of Marco Antonio Hungaro Duarte include Sacred Heart University & Federal University of Ceará.
Papers published on a yearly basis
Papers
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TL;DR: The results suggest that both materials release calcium and promote alkaline pH.
Abstract: Objective. The purpose of this study was to evaluate the pH and calcium ion release of 2 materials used for root-end fillings and perforation repair. Study Design. ProRoot and MTA-Angelus were placed in plastic tubes and immersed in glass flasks containing deionized water. After 3, 24, 72, and 168 hours, the water in which each had been immersed was tested to determine the pH changes and released calcium. Results. The values for pH and calcium ion release were slightly higher for MTA-Angelus than ProRoot. The calcium release and pH of both materials were initially higher. Conclusion. The results suggest that both materials release calcium and promote alkaline pH. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2003;95:345-7)
262 citations
TL;DR: The bioceramic endodontic cement showed radiopacity significantly lower than that of AH Plus, and the pH analysis showed that Endosequence BC Sealer showed pH and release of Ca(2+) greater than those ofAH Plus during the experimental periods.
250 citations
TL;DR: The possible interference of the radiopacifiers with the setting chemistry, biocompatibility, and physical properties of the Portland cement should be further investigated before any clinical recommendation can be done.
197 citations
TL;DR: The color of white MTA Angelus was altered in contact with dental structures, andCollagen, which is present in dentin matrix, reacted with bismuth oxide, resulting in a grayish discoloration.
179 citations
TL;DR: It could be concluded that cone-beam volumetric tomography was better than conventional radiography in the diagnosis of root fractures, thereby constituting an excellent alternative for diagnosis in general practice.
Abstract: Objectives The diagnosis of root fractures by conventional radiographs is still difficult because of limitations of 2D images. Cone-beam volumetric tomography improves the diagnosis capacity in dentistry, such as increased radiation dose to the patient and presence of artifacts on the image. Study design This study compared the images obtained on conventional periapical radiographs and 3D scans (Accuitomo 3DX) for the diagnosis of root fractures. Twenty patients with suspected root fractures were submitted to examination by periapical radiography and CBCT. Two professionals, unaware of the symptomatology, examined these radiographs and CBCT images according to pre-established scores, which were later checked against the signs and symptoms. Results The results revealed statistical difference for cone-beam volumetric tomography compared with conventional radiographs in the diagnosis of root fractures. Conclusion It could be concluded that cone-beam volumetric tomography was better than conventional radiography in the diagnosis of root fractures, thereby constituting an excellent alternative for diagnosis in general practice.
163 citations
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31 Oct 2001
TL;DR: The American Society for Testing and Materials (ASTM) as mentioned in this paper is an independent organization devoted to the development of standards for testing and materials, and is a member of IEEE 802.11.
Abstract: The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.
3,792 citations
TL;DR: MTA is a promising material for root-end filling, perforation repair, vital pulp therapy, and apical barrier formation for teeth with necrotic pulps and open apexes and appears to be the material of choice for some clinical applications.
1,101 citations
TL;DR: MTA is a bioactive material that influences its surrounding environment and possesses some antibacterial and antifungal properties, depending on its powder-to-liquid ratio.
1,019 citations
TL;DR: On the basis of available evidence it appears that MTA seals well and is a biocompatible material.
810 citations