SEALING ABILITY OF MTA FOR REPAIR OF LATERAL ROOT PERFORATION
Mineral trioxide (3)
1. MINERAL TRIOXIDE AGGREGATE Seminar by Guide: Dr. C. Ram Mohan Dr. T. Manisha Choudary
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3. Introduction It was introduced by Mahmoud Torabinejad and colleagues at Lomalinda University in 1993. Has been used on experimental basis by endodontists for several years with anecdotally reported successes, some of it quite impressive. It was approved for the human usage by the FDA in 1998. The material appears to be an improvement over other materials for some endodontic procedures that involve root repair and bone healing.
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74. Holland etal compared the dogs pulp responses on capping with either MTA or Ca(OH)2 In teeth treated with MTA, all bridges were tubular morphologically. In the superficial portion of these bridges, the presence of a slight layer of necrotic pulp tissue was observed suggesting that material, similar to Ca(OH)2, initially causes necrosis by coagulation in contact with pulp connective tissue. This reaction may occur because of the product’s high alkalinity, whose pH is 10.2 during manipulation and 12.5 after 3 hours. The results were similar to the findings of Pittford etal.
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