In:
European Journal of Dentistry, Georg Thieme Verlag KG, Vol. 09, No. 02 ( 2015-04), p. 234-239
Abstract:
Objective: The complete filling material removal during endodontic retreatment is a clinical procedure difficult to achieve. The aim of this study was to evaluate the efficacy of reciprocating and continuous rotary nickel-titanium instruments used in root canal retreatment. Materials and Methods: Forty freshly extracted human premolars were cleaned and shaped by the crown-down technique, followed by filling by the lateral compaction technique. The teeth were randomly separated into two groups (n = 20), according to the system used for filling material removal: G1 - Reciproc and G2 - ProTaper Universal Retreatment System. The teeth were photographed under operating microscope at ×8 magnification; and the total area of the root canal and remaining filling material were quantified. Results: No statistically significant difference (P 〉 0.05) in residual filling material was observed between groups; however, the time required for filling removal was significantly shorter for Reciproc system (P 〈 0.05). Conclusions: It was observed remaining filling material in all teeth, irrespective of the system used; however, root canal retreatment was faster when reciprocating motion was used.
Type of Medium:
Online Resource
ISSN:
1305-7456
,
1305-7464
DOI:
10.4103/1305-7456.156834
Language:
English
Publisher:
Georg Thieme Verlag KG
Publication Date:
2015
detail.hit.zdb_id:
2491711-4