A matched irrigation and obturation strategy for root canal therapy

Autor(es)

Zancan, Rafaela Fernandes ^[1] ; Hadis, Mohammed ^[2] ; Burgess, David ^[3] ; Zhang, Zhenyu Jason ^[3] ; Di Maio, Alessandro ^[4] ; Tomson, Phillip ^[2] ; Hungaro Duarte, Marco Antonio ^[1] ; Camilleri, Josette ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Restorat Dent Dent Mat & Endodont, Bauru Sch Dent, Bauru, SP - Brazil

^[2] Univ Birmingham, Coll Med & Dent Sci, Sch Dent, Inst Clin Sci, Birmingham, W Midlands - England

^[3] Univ Birmingham, Sch Chem Engn, Birmingham, W Midlands - England

^[4] Univ Birmingham, Sch Biosci, Birmingham, W Midlands - England

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 11, n. 1 FEB 25 2021.
• Citações Web of Science: 1

Resumo

In root canal therapy, irrigating solutions are employed to eliminate the bacterial load and also prepare dentin for sealer interaction. The aim of this research was to assess how irrigating solutions employed on their own or in sequence affected the tooth structure. The best way to prepare the tooth for obturation using hydraulic calcium silicate cement (HCSC) sealers and gutta-percha, thus guiding clinicians on a matched irrigation-obturation strategy for optimized root canal treatment was investigated. The effect of irrigating solutions on dentine was investigated by assessing changes in dentin microhardness, ultrastructure and mineral content, organic/inorganic matter, surface roughness and Young's modulus. The interaction of four root canal sealers with the dentin was analysed by assessing the changes in microhardness of the dentin after sealer placement and also the sealer to dentin interface by scanning electron and confocal laser microscopy. The irrigating solutions damaged the dentin irreversibly both when used on their own and in combination. The best sequence involved sodium hypochlorite followed by chelator and a final rinse with sodium hypochlorite and obturation using HCSC sealers that enabled the restoration of dentin properties. The HCSC sealers did not rely on chelator irrigating solutions for a good material adaptation to dentin. (AU)

• Processo FAPESP: 18/03554-0 - Influência de diferentes protocolos endodônticos na estrutura da dentina e na adesividade da interface dentina-cimento
• Beneficiário: Rafaela Fernandes Zancan
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado