A comparative in vitro study of different techniques for removal of fibre posts from root canals

Abstract

This study evaluates the effectiveness of different techniques to remove fibre posts from root filled teeth in vitro. One hundred and fifty-three extracted single-rooted teeth were decoronated, root-canal treated and divided into three groups (n = 51). Post spaces were prepared for different types of fibre posts: glass fibre, quartz fibre, carbon fibre. Each group was divided into three subgroups with regard to the post removal technique (n = 17): SonicFlex Endo, long-shaft round bur, DT-Post removal kit. Residual material, loss of dentine, working time and procedural errors were assessed using computed tomography. Statistical analysis was performed with a one-way anova (α = 0.05). The highest effectiveness was achieved with the sonic tip and the round bur. A high prevalence of perforations or severe deviations from the root axis was observed for all groups. No technique presented favourable results in all assessed parameters. There is a high risk of perforations.

Optimisation of a guided endodontics protocol for removal of fibre‐reinforced posts

“…Later, it was advised to use long‐shank endo burs combined with optical aids, as an operating microscope. However, these latter techniques also entailed iatrogenic risk because of the strong likelihood of misdirecting the drill and perforating the root . Furthermore, most dentists are not equipped with adequate optical aids to ensure safe removal of fibre posts.…”

“…The various techniques for fibre post removal all entail risks, as Haupt et al . showed . These authors reported a high prevalence of root perforation, axis deviation and consequent fragilisation of the roots, entailing a poorer survival prognosis for the tooth.…”

Comparison of the efficacies of two different fiber post‐removal systems: A micro‐computed tomography study

“…Successful endodontic retreatment requires efficient removal of the posts without leaving residual materials on the root canal walls. Haupt, Pfitzner, and Hülsmann () reported that removal kits left more residue on the root canals than burs and sonic tips, regardless of fiber post type. Lindemann et al () compared the efficiencies of a fiber post removal system recommended by the manufacturer and ultrasonic tips.…”

“…Protection of the root structure is important for sufficient root resistance and long‐term tooth retention. Haupt et al () compared the D.T. Light‐Post removal kit, burs, and sonic tips in the removal of glass, carbon, and quartz fiber posts; they reported that burs removed more material from the dentin, and the least loss occurred when quartz fiber posts were used with dismantling kits.…”

Association of prefabricated metal post with the method of removal - a retrospective study

“…It has been studied that the removal of carbon posts generally took a longer time for removal when compared to glass and quartz fibre posts. It was also found that there was higher risk for root perforation during the removal of fibre posts [ (Haupt, Pfitzner and Hülsmann, 2018)]. Capar et al, found that fibre post removals with drills does not does not have a significant effect on crack propagation [ (Çapar et al, 2015)].…”