Micro-CT analysis of dentinal microcracks on root canals filled with a bioceramic sealer and retreated with reciprocating instruments
| Autor: | Marcely Cassimiro, Silmara de Andrade Silva, Kaline Romeiro, Andressa Cartaxo de Almeida, Diana Santana de Albuquerque, Eugênia Lívia de Andrade Dantas, Luciana Gominho |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Molar
Materials science Root canal 0206 medical engineering lcsh:Medicine Dentistry 02 engineering and technology Bioceramic Article Root Canal Filling Materials 03 medical and health sciences Reciprocating motion 0302 clinical medicine stomatognathic system Root Canal Obturation medicine Humans Tooth Root lcsh:Science Micro ct Multidisciplinary business.industry lcsh:R Health care Material removal Equipment Design X-Ray Microtomography 030206 dentistry 020601 biomedical engineering medicine.anatomical_structure Risk factors Retreatment lcsh:Q Dental Pulp Cavity business |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-6 (2020) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-020-71989-6 |
| Popis: | This study aimed to analyze the potential occurrence of dentinal defects after the removal of a root canal filling with two different sealers using Reciproc (RC) or Reciproc Blue (RB). The mesial roots of 60 mandibular molars with a Vertucci type IV configuration were selected. The samples were initially instrumented with Reciproc (R25) and then divided into the following 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). Then, the samples were scanned under micro-CT after obturation and removal of the filling material. Two analyses were conducted. First, an evaluation was performed on all the axial images, and another analysis evaluated each millimeter of the 10 mm from the apex. Dentinal defects were observed in all the samples. All of the identified defects in the images after filling material removal were present in the corresponding images after obturation. The use of AH Plus and EndoSequence BC Sealer, and filling material removal using RC and RB instruments did not induce dentinal defects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|