Deriaty, Tanti, Indra Nasution, and Muslin Yusuf. “Nickel Ion Release from Stainless Steel Brackets in Chlorhexidine and Piper Betle Linn Mouthwash”. Dental Journal 51, no. 1 (March 31, 2018): 5–9. Accessed September 8, 2024. https://e-journal.unair.ac.id/MKG/article/view/6719.