Mechanical and Metallurgical Properties of Various Nickel-Titanium Rotary Instruments

Table 3

Transformation temperatures and associated energy from the DSC plots for different NiTi instruments.

	Cooling
	(°C)	(°C)	(J/g)	(°C)	(°C)	(J/g)
K3	3.84	−47.83	2.786
Reciproc	44.85	−13.44	2.576
HyFlex CM	−18.30	−42.34	8.211	29.35	17.44	3.934
TF	43.54	−25.39	6.221
	Heating
	(°C)	(°C)	(J/g)	(°C)	(°C)	(J/g)
K3	−39.63	6.53	3.279
Reciproc	−1.87	58.10	4.248
HyFlex CM	11.81	39.75	19.07
TF	12.04	51.74	0.183	−35.31	12.04	1.369

, martensitic transformation-starting temperature; , martensitic transformation-finishing temperature; , enthalpy change of martensitic transformation; , R-phase transformation-starting temperature; , R-phase transformation-finishing temperature; , enthalpy change of R-phase transformation; , austenitic transformation-starting temperature; , austenitic transformation-finishing temperature; , enthalpy change of austenitic transformation.