Flexural Properties and Elastic Modulus of Different Esthetic Restorative Materials: Evaluation after Exposure to Acidic Drink

Table 3

Mean values (and standard deviations) of elastic modulus (GPa). Values have been collected after storage in physiologic solution (Subgroup A, t0), after one week (Subgroup B, t1) and after one month (Subgroup C, t2) of immersions in acidic drink.

	Group 1 (Filtek Supreme XTE)	Group 2 (G-ænial)	Group 3 (Admira Fusion)	Group 4 (Gradia Direct)	Group 5 (Essentia)	Group 6 (Ceram.X Universal)	Group 7 (Estelite Asteria)	Group 8 (Gradia Direct Flo)	Group 9 (SureFil SDR flow)
Subgroup A (t0)	9,45 (0,78)	5,25 (0,35)	5,06 (0,59)	4,11 (0,38)	6,27 (0,57)	7,12 (1,12)	6,57 (0,68)	3,05 (0,60)	3,40 (0,23)
Subgroup B (t1)	7,83 (1,47)	4,65 (0,19)	5,52 (0,43)	3,90 (0,59)	5,70 (0,05)	6,81 (0,19)	5,45 (0,33)	3,50 (0,15)	3,22 (0,34)
Subgroup C (t2)	7,16 (0,89)	4,68 (0,37)	5,23 (0,15)	4,00 (0,33)	5,60 (0,49)	6,92 (0,20)	5,65 (0,69)	3,60 (0,04)	3,49 (0,47)