Shaping ability of Reciproc and TF Adaptive systems in severely curved canals of rapid microCT-based prototyping molar replicas

Autor(es)

Ordinola-Zapata, Ronald ^[1] ; Bramante, Clovis Monteiro ^[1] ; Hungaro Duarte, Marco Antonio ^[1] ; Cavenago, Bruno Cavalini ^[1] ; Jaramillo, David ^[2] ; Versiani, Marco Aurelio ^[3]

Afiliação do(s) autor(es)

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

^[2] Loma Linda Univ, Loma Linda Sch Dent, Dept Endodont, Loma Linda, CA 92350 - USA

^[3] Univ Sao Paulo, Ribeirao Preto Sch Dent, Dept Endodont, Ribeirao Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Oral Science; v. 22, n. 6, p. 509-515, NOV-DEC 2014.
• Citações Web of Science: 16

Resumo

Objective: To evaluate the shaping ability of Reciproc and Twisted-File Adaptive systems in rapid prototyping replicas. Material and Methods: Two mandibular molars showing S-shaped and 62-degree curvatures in the mesial root were scanned by using a microcomputed tomography (mu CT) system. The data were exported in the stereolitograhic format and 20 samples of each molar were printed at 16 mu m resolution. The mesial canals of 10 replicas of each specimen were prepared with each system. Transportation was measured by overlapping radiographs taken before and after preparation and resin thickness after instrumentation was measured by mu CT. Results: Both systems maintained the original shape of the apical third in both anatomies (P>0.05). Overall, considering the resin thickness in the 62-degree replicas, no statistical difference was found between the systems (P>0.05). In the S-shaped curvature replica, Reciproc significantly decreased the thickness of the resin walls in comparison with TF Adaptive. Conclusions: The evaluated systems were able to maintain the original shape at the apical third of severely curved mesial canals of molar replicas. (AU)

• Processo FAPESP: 13/03695-0 - Avaliação da anatomia, protocolos de instrumentação e de descontaminação de raízes por meio de microtomografia, prototipagem de alta resolução, microscopia óptica e confocal.
• Beneficiário: Ronald Ordinola Zapata
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 10/16072-2 - Microtomógrafo (MicroTC) no estudo da anatomia dental e nos procedimentos endodônticos
• Beneficiário: Clovis Monteiro Bramante
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/09989-0 - Avaliação de diferentes técnicas de preparo biomecânico, obturação, retrobturação, preparo para contenção intraradicular e qualidade do trabeculado ósseo apical de dentes submetidos a diferentes tratamentos, por meio de microtomografia computadorizada
• Beneficiário: Manoel Damiao de Sousa Neto
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/16002-4 - Efeito das soluções químicas e dos meios físicos utilizados na irrigação endodôntica na dentina infectada por biofilmes orais
• Beneficiário: Ronald Ordinola Zapata
• Modalidade de apoio: Bolsas no Brasil - Doutorado