The success rate of retrograde filling materials in re-apicectomized teeth using mineral trioxide aggregate (MTA)‎ and zinc free amalgam : a comparative clinical study

الملخص EN

Aim of the study : to compare the success rate of root end filling material using MTA (mineral tri-oxide 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 piratical area both clinically and radio graphically.

Results : there was no statistically significant difference be-tween 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 is familiar with the use of it.