Abstract
Considering previous studies on the similarity between the chemical composition of the mineral trioxide aggregate and the Portland cement, the purpose of this study was to investigate the pulp response of dog's teeth after pulpotomy and direct pulp protection with MTA Angelus and white Portland cement. Thirty eight pulp remnants were protected with these materials. One hundred and twenty days after treatment, the animals were sacrificed and the specimens removed and prepared for histological analysis. Both materials demonstrated the same results when used as pulp capping materials, inducing hard tissue bridge formation and maintaining pulp vitality in all specimens. The MTA Angelus and the white Portland cement showed to be effective as pulp protection materials following pulpotomy.
Highlights
Recent research in Endodtics has been focused on the ability of various techniques and materials to enhance optimal tissue healing.Mineral trioxide aggregate (MTA) was developed as a root-end filling material for periapical surgery and for the sealing of communications between the root canal system and the surrounding tissues[15].MTA has been used in pulp capping procedures in animal[5,10,12] and human teeth,[2] and demonstrated remarkable success compared to calcium hydroxide
Wucherpfenning and Green[17], reported that both MTA and Portland cement (PC) seem almost identical macroscopically, microscopically and by X-ray diffraction analysis. They reported that both substances support matrix formation in a similar manner in cultures of osteoblast-like cells, and apposition of reparative dentin when used as a direct pulp capping material in rat teeth
The purpose of this study was to investigate the properties of MTA Angelus, a Brazilian product, and white Portland cement used as pulp capping materials after pulpotomy in intact dog’s teeth
Summary
Mineral trioxide aggregate (MTA) was developed as a root-end filling material for periapical surgery and for the sealing of communications between the root canal system and the surrounding tissues[15]. MTA has been used in pulp capping procedures in animal[5,10,12] and human teeth,[2] and demonstrated remarkable success compared to calcium hydroxide. Wucherpfenning and Green[17], reported that both MTA and Portland cement (PC) seem almost identical macroscopically, microscopically and by X-ray diffraction analysis. They reported that both substances support matrix formation in a similar manner in cultures of osteoblast-like cells, and apposition of reparative dentin when used as a direct pulp capping material in rat teeth. Other authors[3,6] reported that the Portland cements contain the same chemical elements as MTA, except that MTA contains bismuth
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