00000ctm a22000003a 4500 UP-1685523046126336465 Buklod 20200121091138.0 m |o d | cr ||||||||||| 200121s2019 xx d r |||| u| (iLib)UPMNL-00016535396 UPDent eng LG 993.5 2019 D4 H83 Hugo, Jazmine S. author Bond Strength of a total-etch adhesive at different post-bleaching with phthalimido peroxy caproic acid and tribarrel hydremide peroxide bleaching agents Jazmine Vien S. Hugo; technical adviser and co-author, Vicente O. Medina III. Manila Department of Community Dentistry, University of the Philippines Manila c2019. 66 leaves color illustrations 28 cm. text rdacontent unmediated rdamedia volume rdacarrier Seminar Paper--Doctor of Dental Medicine--University of the Philippines Manila Yes No No Methodology: A total of 70 bovine incisors were used for this study. Flat 3 mm bonding substrate was produced by grinding initially using 240-grit Silicon Carbide (SiC) discs and finished with 600-grit SiC paper. The specimens were randomly assigned to 7 groups (n=10) namely: Total Etch (TE) adhesive resin bonded to 1. non-bleached enamel, 2. enamel bleached with bleaching agent containing phthalimido peroxy caproic acid (PAP) immediately after bleaching, 3. enamel bleached with bleaching agent containing PAP 1 day after bleaching, 4. enamel bleached with bleaching agent containing PAP 14 days after bleaching, 5. enamel bleached with hydremide peroxide (HP) immediately after bleaching, 6. enamel bleached with HP 1 day after bleaching, 7. enamel bleached with HP 14 days after bleaching. The TE adhesive and composite were manipulated following manufacturer?s instructions. The specimens were stored in distilled water for 1 day before shear bond strength (SBS) testing was performed using a universal testing machine with a crosshead speed of 1mm/minute. Results: Analysis of variance indicated that there is a significant difference (P < 0.05) among the groups. Post-hoc (Bonferroni) testing showed that the SBS of the: a) control group (7.2 ± 1.67 MPa) and 1-day post bleaching (7.04 ± 2.82 MPa) with PAP were significantly higher compared to the SBS of the 14-day post bleaching group (4.06 ± 2.35 MPa); b) control group is significantly higher (7.2 ± 1.67 MPa) than the SBS of the immediate (2.54 ± 1.32 MPa) and 14-day post bleaching groups (1.6 ± 1.28 MPa) bleached with hydremide peroxide; c) 1-day group is significantly higher than the SBS of the immediate and 14-day post bleaching groups bleached with hydremide peroxide. Conclusions: Based on the results of the of this study, it is concluded that adhesive procedures performed 24 hours after bleaching with PAP and tribarrel hydremide peroxide would produce significantly higher shear bond strength to enamel compared to bonding procedures performed 14 days after bleaching. Teeth-Bleaching. Dental bonding. Composite resins. Hydremide peroxide. Phthalimido-Peroxy caproic acid. Medina III, Vicente O. author. Thesis UPMNL DENT LG 993.5 2019 D4 H83 Thesis