Cuspal Displacement Induced by Bulk Fill Resin Composite Polymerization: Biomechanical Evaluation Using Fiber Bragg Grating Sensors

Table 3

Mean differences of deformation for samples restored with Esthet• X® HD and SDR™, for each time period (ANCOVA).

Time (min)	Levene’s test ()			Mean difference; (SDR - Esthet X); ()	Std. error difference	Mean difference; (SDR - Esthet X); (m)
0.5	0.751	52.69	<0.01	626.8	86.4	2.4
5.5	0.120	7.15	0.016	255.6	95.6	1.0
6	0.733	21.64	<0.01	601.4	129.3	2.3
10	0.620	7.37	0.015	274.6	101.1	1.1

Statistically significant differences.