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. 2016 Mar-Apr;24(2):136–141. doi: 10.1590/1678-775720150154

Table 1. Mean values of temperature variation, standard deviation, and statistical analysis comparison between groups (Tukey’s test).

Groups	Light sources	Mean±SD
G1	D-Light Green	0.00±0^A
G2	D-Light Green + gel	0.17±0.41^A
G3	Smart Lite	2.17±0.41^C
G4	Smart Lite + gel	3.00±0^D
G5	UltraBlue IV	1.00±0^B
G6	UltraBlue IV + gel	2.17±0.41^C
G7	UltraBlue IV laser	1.17±0.41^B
G8	UltraBlue IV laser + gel	2.33±0.52^CD
G9	Spectrum	2.70±0.41^C
G10	Spectrum + gel	3.83±0.41^E

Different capital letters indicate statistically significant difference between lines (p<0.05)