An in vitro comparative study to evaluate the apical seal of root canals prepared by rotary versus reciprocating wave-one nickel titanium system

الملخص EN

The aim of present study is to assess the apical seal of root canals prepare by two different preparation techniques (Rotary and reciprocating technique) .

Materials and Methods : Forty extracted human, single-rooted lower premolar teeth were decoronated at the cement-enamel junction (CEJ).

The working length was determined for each tooth.

The samples were divided into 2 experimental groups, each one consisted of 20 prepared teeth: group 1, rotary conventional preparation by using Wave-One file.

group2, reciprocate instrumentation with Wave-One file.

After instrumentation was completed then the teeth obturated with Single-cone technique related to this systems.

Zinc oxide euginol (ZOE) sealer was used as a root canal sealer in this study.

A dye penetration method was used to evaluate the apical seal and the teeth were cleared then apical leakage was measured using a stereomicroscope at (x10 magnification).

The statistical analysis performed by Independent t-test.

Results : Wave-One file instrumented by Reciprocation instrumentation technique was significantly differ from Rotary instrumentation technique for root canal preparation .

The Reciprocation group registered better apical seal than Rotary group.

Conclusions : Apical seal with the Wave-One Reciprocation technique and conventional Wave-One rotary approach were significantly difference.

The Wave-One Reciprocation technique was markedly registered better apical seal than Wave-One rotary technique.