Scanning Electronic Microscopy Analysis of the Apical Surface After of Root-End Resection With Different Methods

Autor(es)

Bernardes, Ricardo Affonso ^{[1, 2]} ; Hungaro Duarte, Marco Antonio ^[2] ; Vivan, Rodrigo Ricci ^[2] ; Baldi, Jarcio V. ^[1] ; Vasconcelos, Bruno C. ^[3] ; Bramante, Clovis Monteiro ^[2]

Afiliação do(s) autor(es)

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

^[2] Brazilian Dent Assoc, Taguatinga, DF - Brazil

^[3] Univ Fed Ceara, Sch Dent Sobral, Sobral, Ceara - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SCANNING; v. 37, n. 2, p. 126-130, MAR-APR 2015.
• Citações Web of Science: 1

Resumo

To compare the time dispensed and the surface characteristics when a root-end resection was performed with a surgical ultrasonic device (VarioSurg, NSK, Japan) or with a Zekrya bur. Forty distal roots of freshly extracted mandibular molars were selected and divided into four different groups: (G1) stainless steel insert with ultrasound; (G2) diamond insert with ultrasound; (G3) stainless steel and diamond inserts with ultrasound, and (G4) Zekrya burs. The time required for the root-end resection was timed and the surface characteristics were evaluated via scanning electronic microscopy. The median times for the root-end resections were: 115.9s for G1, 249.8s for G2, 112.7s for G3, and 7.44s for G4, the latter presented a smoother root-end surface. There was no statistically significant difference in the comparisons between G3 group and G4 group (Zekrya burs). The other groups where the root-end resections were with ultrasonic devices proportioned a prolonged time to resection with irregular surfaces. SCANNING 37:126-130, 2015. (c) 2015 Wiley Periodicals, Inc. (AU)

• Processo FAPESP: 12/05466-5 - Qualidade das deobturações de canais radiculares realizadas com diferentes técnicas e determinação da quantidade de material obturador remanescente após desobturação, por meio da microtomografia e microscopia eletrônica de varredura
• Beneficiário: Ricardo Affonso Bernardes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado