Table 2: Differential scanning calorimetry-measured temperature and enthalpy changes for phase transformations during cooling of thermally activated Nickel-Titanium wires (°C)

Commercial Wires	Condition	Cooling Onset (°C)	Cooling Endset (°C)	Enthalpy (J/g)
Copper NITI ORMCO	“As received” 1	13.50	-10.38	13.36
Copper NiTi ORMCO	“As received” 2	14.02	-9.98	14.97
Copper NiTi ORMCO	“60 days in clinical use”	13.69	-10.55	13.50
Copper NiTi ORMCO	“60 days in clinical use + sterilization process”	14.14	-9.88	14.48
NeoSentalloy GAC	“As received” 1	-22.39	-59.44	5.96
NeoSentalloy GAC	“As received” 2	-23.42	-59.39	6.14
NeoSentalloy GAC	“60 days in clinical use”	-22.93	-51.83	8.04
NeoSentalloy GAC	“60 days in clinical use + sterilization process”	-22.29	-51.15	8.51
Orthometric Flexy Thermal 37°C	“As received” 1	17.80	-0.48	17.88
Orthometric Flexy Thermal 37°C	“As received“ 2	17.50	-1.57	17.70
Orthometric Flexy Thermal 37°C	“60 days in clinical use”	17.33	-1.53	17.42
Orthometric Flexy Thermal 37°C	“60 days in clinical use + sterilization process”	17.46	-1.40	16.86
Highland Metals	“As received” 1	-31.35	-61.03	2.27
Highland Metal	“As received”2	-32.90	-52.41	0.30
Highland Metals	“60 days in clinical use”	-31.75	-65.04	1.77
Highland Metals	“60 days in clinical use + sterilization process”	-31.17	-60.86	3.17