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. 2020 Jan;24(1):405-416.
doi: 10.1007/s00784-019-02956-3. Epub 2019 May 18.

Reciproc and Reciproc Blue in the removal of bioceramic and resin-based sealers in retreatment procedures

Kaline Romeiro  1 , Andressa de Almeida  2 , Marcely Cassimiro  1 , Luciana Gominho  3 , Eugênia Dantas  4 , Nayane Chagas  1 , Christianne Velozo  1 , Laila Freire  5 , Diana Albuquerque  1
Affiliations

Reciproc and Reciproc Blue in the removal of bioceramic and resin-based sealers in retreatment procedures

Kaline Romeiro et al. Clin Oral Investig. 2020 Jan.

Abstract

Objectives: To compare the remaining root canal filling material, dentin removal, apical transportation, and apical extrusion of debris after the retreatment of canals filled with bioceramic or resin-based sealers using the Reciproc or Reciproc Blue instruments.

Materials and methods: Sixty mandibular molars with severely curved mesial roots were selected. The samples were initially instrumented with Reciproc (R25) and then divided into four experimental groups according to the endodontic sealer and retreatment instrument (n = 15): BC Sealer/Reciproc (BCRC), BC Sealer/Reciproc Blue (BCRB), AH Plus/Reciproc (AHRC), and AH Plus/Reciproc Blue (AHRB). The procedure time was measured, and an Eppendorf tube was used in each root canal to store the debris extrusion. The samples were scanned by micro-CT before and after retreatment. The apical transportation, volume of dentin, and filling material were evaluated.

Results: There were no significant differences in the reduction of the volume of obturator material or dentin removal between groups (p > .05). There were also no differences in the amount of extruded material or apical transportation (p > .05). The retreatment time for the AHRC group was significantly lower than that for the other groups (p = .004).

Conclusions: All tested instruments obtained similar efficacy in filling material removal procedures, although no system completely removed the filling material. Retreatment of canals filled with bioceramic BC Sealer may be more time consuming.

Clinical relevance: This study reported that Reciproc and Reciproc Blue can be indicated in retreatment of severely curved root canals filled either with bioceramic or resin-based sealers.

Keywords: Apical extrusion; Apical transportation; Bioceramic Sealer; Micro-CT; Reciproc; Retreatment.

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