Pengaruh Aplikasi Bahan Bleacing Kombinasi Asam Malat 1?n Natrium Bikarbonat 10% Terhadap Kadar Pelepasan Ion Fosfat Gigi
Zahra Zafira, drg. Trianna Wahyu Utami, MDSc., Ph.D.; drg. Asikin Nur, M.Kes, Ph.D.
2025 | Skripsi | PENDIDIKAN DOKTER GIGI
Bleaching was a procedure employed to address aesthetic concerns pertaining to tooth coloration that did not necessitate surgical intervention. This technique was typically implemented through the application of peroxide-based materials onto the surface of discolored teeth. A previous study revealed that the use of malic acid did not demonstrate a significant difference when compared with carbamide peroxide. Therefore, the addition of sodium bicarbonate as a pH conditioning agent was deemed necessary. The objective of this study was to determine the effect of the application of bleaching materials combined with malic acid and sodium bicarbonate on the levels of tooth phosphate ion release.
The research specimens used were nine maxillary premolars with intact and caries-free crowns. The teeth were immersed in a coffee solution for 12 days to induce discoloration. The teeth were bisected, with the mesial teeth serving as the initial phosphate test specimens and the distal teeth used for the final phosphate test. The specimens were then divided into three groups for treatment: 10?rbamide peroxide, 1% malic acid, and a combination of 1% malic acid and 10% sodium bicarbonate. Bleaching agents were applied for a total of 12 days, with a daily application of 6 hours. The specimens were stored in an incubator maintained at 37°C. The measurement of phosphate ion levels in the teeth was performed using UV-Vis spectrophotometry.
The results of the Shapiro-Wilk test indicated that the data were normally distributed, while the results of the Levene test demonstrated that the data exhibited homogeneous variation. The one-way ANOVA test demonstrated that the bleaching agents carbamide peroxide 10%, malic acid 1%, and a combination of malic acid 1% and sodium bicarbonate 10% had a significant effect on the amount of dental phosphate ion release. The Post Hoc test revealed that the application of a combination of 1% malic acid and 10% sodium bicarbonate affected the release of dental phosphate ions.
Kata Kunci : bleaching, karbamid peroksida 10%, asam malat 1%, natrium bikarbonat 10%, ion fosfat gigi