Comparative evaluation of apical debris extrusion between RaCe and Komet F6An Ex-Vivo Study

Apical extrusion of debris is one of the reasons for flare-up(pain,swelling,or both). This study aimed to determine the apical debris extrusion of two rotary systems(RaCe and Komet F6 SkyTaper) in curved mesiobuccal canals of mandibular first molars.

Thirty mandibular first molars (with mesiobuccal canal curvature 25-35 degree) were included in this experimental study and divided randomly  into two experimental groups.Root canals in group 1 prepared with RaCe and group 2 prepared with Komet F6 SkyTaper system.The roots were fixed in preweighted vials in order that extruded debries accumulate in lower chamber, after desiccation of the chamber exact weight of debris were evaluated. The datas were analysed by T-test (p<0.05).

The mass debris extruded weight in RaCe group was 1.76±0.925 g, while in Komet group was 1.73±0.02909 g and the differences was insignificant ( p= 0.2). 

It seems, Race and Komet F6 systems have not singinficant differences considering the extruded debreis in preparation of dental canal procedures.