Evaluation of canal transportation after preparation with Reciproc single-file systems with or without glide path files.

BACKGROUND

Canal transportation is a common sequel caused by rotary instruments.

AIMS

The purpose of the present study is to evaluate the degree of transportation after the use of Reciproc single-file instruments with or without glide path files.

METHODS

Thirty resin blocks with L-shaped canals were divided into three groups ( = 10). Group 1 - canals were prepared with Reciproc-25 file. Group 2 - glide path file-G1 was used before Reciproc. Group 3 - glide path files-G1 and G2 were used before Reciproc. Pre- and post-instrumentation images were superimposed under microscope, and resin removed from the inner and outer surfaces of the root canal was calculated throughout 10 points.

RESULTS

Statistical analysis was performed with Kruskal-Wallis test and Dunn test. For coronal and middle one-thirds, there was no significant difference among groups ( > 0.05). For apical section, transportation of Group 1 was significantly higher than other groups ( < 0.05).

CONCLUSION

Using glide path files before Reciproc single-file system reduced the degree of apical canal transportation.