Impact of Metallurgical Features on the Cyclic and Torsional Properties of Five Reciprocating Instruments Manufactured With Blue Thermal Treatment | Zendy

Teves Cordova Abel Victor isidro | Zendy; Alcalde Murilo Priori | Zendy; Vivan Rodrigo Ricci | Zendy; Zevallos Quiroz Cesar Andre | Zendy; Guzmán Hubert Ponce | Zendy; Calefi Pedro Souza | Zendy; Pinto Bruna Oliveira | Zendy; Correa Diego Rafael Nespeque | Zendy; Grandini Carlos Roberto | Zendy; Duarte Marco Antonio Hungaro | Zendy

Premium

Impact of Metallurgical Features on the Cyclic and Torsional Properties of Five Reciprocating Instruments Manufactured With Blue Thermal Treatment

Author(s) -

Teves Cordova Abel Victor isidro,

Alcalde Murilo Priori,

Vivan Rodrigo Ricci,

Zevallos Quiroz Cesar Andre,

Guzmán Hubert Ponce,

Calefi Pedro Souza,

Pinto Bruna Oliveira,

Correa Diego Rafael Nespeque,

Grandini Carlos Roberto,

Duarte Marco Antonio Hungaro

Publication year - 2025

Publication title -

microscopy research and technique

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.536

H-Index - 118

eISSN - 1097-0029

pISSN - 1059-910X

DOI - 10.1002/jemt.24840

Subject(s) - reciprocating motion , materials science , metallurgy , thermal , composite material , mechanical engineering , engineering , physics , thermodynamics , gas compressor

ABSTRACT This study evaluated the metallurgical and mechanical properties of five reciprocating instruments with blue thermal treatment. A total of 200 NiTi rotary instruments (25.08 and 40.06) were used: Reciproc Blue (RB), RC Blue (RCB), Only One File (OOF), Blue T (BT), and Rec Blue File (RBF). The cyclic fatigue test was performed in an artificial canal with a curvature angle of 60° and a curvature radius of 5 mm ( n = 20). The time to fracture was recorded (TTF). The torsional test was performed to evaluate the maximum torsional strength and angular deflection of the instrument's tip ( n = 20). Differential Scanning Calorimetry (DSC) and x‐ray diffractometry (XRD) were used to assess the metallurgical features. ANOVA and Tukey tests were used for statistical comparison. The OOF 25.08 and 40.06 exhibited higher TTF than the other groups ( p < 0.05). There was no significant difference among OOF, RBF, and RB 25.08 regarding the torsional strength ( p > 0.05). RCB 40.06 had the lowest torsional strength ( p > 0.05). DSC analysis indicated that OOF had higher austenite start and finishing temperatures. XRD analysis revealed that the 25.08 and 40.06 instruments of OOF had the highest peaks of the martensite phase. Variations in metallurgical phases and temperature transformations affected the mechanical properties of the instruments.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Empowering knowledge with every search