Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods

Table 5

Necrosis and fibrosis produced by light curing units in different modes of lightening.

	Day7				Day14				Day30				Day60
	Necrosis		Fibrosis		Necrosis		Fibrosis		Necrosis		Fibrosis		Necrosis		Fibrosis
LCU (mode of lightening)	Yes	No	T	N	Yes	No	T	N	Yes	No	T	N	Yes	No	T	N
QTH (full power)	0	5	5	0	1	4	5	0	0	5	4	1	0	5	5	0
LED (full power)	1	4	4	1	1	4	5	0	1	4	3	2	1	4	5	0
LED (ramp)	1	4	5	0	1	4	5	0	0	5	4	1	0	5	4	1
LED (pulse)	0	5	4	1	2	3	2	3	0	5	3	2	0	5	4	1
Control	0	5	5	0	0	5	5	0	0	5	5	0	0	5	5	0

Presence or absence of necrosis was determined as (Yes) or (No).
The thickness of fibrosis was shown as thick (T) or narrow (N).