International Journal of Dentistry / 2023 / Article / Tab 1 / Research Article
Effect of Sodium Ascorbate, Grape Seed Extract, and Aloe Vera Application after In-Office Bleaching on the Bond Strength of Enamel: A 3-Year Evaluation Table 1 Number of specimens (%) according to fracture mode and the premature failure of all experimental groups.
Experimental groups Restauration moment Storage time Fracture pattern C A/M PF Control (without bleaching) Immediately 24 hr 4 (11.6) 31 (88.4) 0 (0) 3 years 6 (19.1) 26 (80.9) 0 (0) After bleaching (without antioxidants) Immediately 24 hr 3 (8.8) 31 (91.2) 0 (0) 3 years 3 (9.1) 30 (90.9) 0 (0) 7 days after bleaching 24 hr 3 (10.9) 25 (89.1) 0 (0) 3 years 6 (19.1) 28 (74.9) 2 (6.0) 14 days after bleaching 24 hr 4 (13.4) 33 (86.4) 0 (0) 3 years 2 (6.0) 29 (90.9) 1 (3.1) After bleaching + sodium ascorbate 10% Immediately 24 hr 5 (15.0) 30 (85) 0 (0) 3 years 3 (11.2) 22 (81.4) 2 (7.4) 7 days after bleaching 24 hr 9 (30.0) 21 (70.0) 0 (0) 3 years 3 (6.3) 29 (93.7) 0 (0) 14 days after bleaching 24 hr 6 (17.4) 29 (82.6) 0 (0) 3 years 2 (6.6) 27 (84.1) 3 (9.3) After bleaching+Aloe vera Immediately 24 hr 1 (2.9) 34 (97.1) 0 (0) 3 years 1 (7.3) 25 (82.4) 3 (10.3) 7 days after bleaching 24 hr 7 (24.0) 22 (76.0) 0 (0) 3 years 1 (3.4) 27 (90.0) 2 (6.6) 14 days after bleaching 24 hr 4 (12.5) 28 (87.5) 0 (0) 3 years 2 (7.0) 25 (86.0) 2 (7.0) After bleaching + grape seed extract Immediately 24 hr 3 (11.3) 27(88.7) 0 (0) 3 years 2 (6.6) 24 (76.6) 4 (16.8) 7 days after bleaching 24 hr 9 (32.9) 20 (67.1) 0 (0) 3 years 0 (0) 30 (93.7) 2 (6.3) 14 days after bleaching 24 hr 8 (23.4) 27 (76.6) 0 (0) 3 years 0 (0) 28 (87.5) 4 (12.5)
Abbreviations: C, cohesive fracture mode; A/M, adhesive or mixed fracture mode; PF, premature failure.