Influence of the acid erosion associated with dental bleaching in bovine enamel: In vitro study

Objective: To evaluate the influence of acid erosion caused by daily intake lemon juice or apple cider vinegar, associated with immediate dental whitening, on bovine enamel. Materials and Methods: 30 teeth were sectioned to obtain enamel blocks distributed into three groups (n = 10): G1- Tooth whitening 35% hydrogen peroxide; G2- peroxide + G3 - vinegar. Treatments performed for 21 days, varnish was removed analysis loss structure surface roughness means non-contact 3D Confocal Chromatic Profilometer. The data obtained analyzed Kruskal-Wallis Mann-Whitney non-parametric tests. Results: All exhibited greater (Sa) side exposed treatments (G1 3.17b; G2 4.17b; 3.99b) compared unexposed 2.55a; 3.94a; 2.40a). There a statistically significant difference among evaluated, being G1 (3.17A) <G3 (3.99C) <G2 (4.17B). Conclusion: has least erosive potential when its association vinegar juice.