The Success rate of Retrograde Filling Materials in Re-apicectomized Teeth using Mineral Trioxide Aggregate (MTA) and Zinc free Amalgam (A comparative clinical study).
Al-Rafidain Dental Journal,
2012, Volume 12, Issue 1, Pages 171-176
AbstractAim of the study: To compare the success rate of root end filling material using MTA( mineral trioxide
aggregate) and zinc free amalgam in re-apicectomized teeth. Materials and methods: The study
sample consisted of 30 patients having previously failed surgical endodontic treatment. The sample
was divided into 2 groups, the 1st group treated with MTA root end filling, while the 2nd group treated
with amalgam root end filling. The patients were followed up after 6 months to assess the periapical
area both clinically and radiographically. Results: There was no statistically significant difference between
the success rate of MTA treated group and that of amalgam treated group, although MTA has a
higher success rate than amalgam treated group .the success rate of MTA treated group was (86.6 %)
while the failure rate of MTA treated group was (13.3%), the success rate of zinc free amalgam treated
group was ( 66.6%) and the rate of uncertain healing was (13.3%) while the rate of failure was (22%).
Conclusions: MTA can be a good alternative to amalgam as a retro grade filling material, but amalgam
is inexpensive, available ,and most of the dentist are familiar with the use of it.
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