TY  - JOUR 
T1  - Influence of heat treatment on color and flexibility of nickel-titanium endodontic instruments
JO  - RGO - Revista Gaúcha de Odontologia
A1  - ALMEIDA, Bernardo Corrêa de
A1  - ELIAS, Carlos Nelson
SN  - 1981-8637
UL  - 10.1590/1981-86372020000443683
VL  - 68 
Y1  - 2020
PB  - Brasil 
ER  -