Abstract

Silver diamine fluoride (SDF) is a topical fluoride that is normally used to control and inhibit the progression of caries. It is also being used as a desensitising agent. However, the black staining appearance of the tooth structure due to SDF application created a major concern among the patient. This recent study was aimed to investigate the effect of potassium iodide (KI) in preventing staining of the tooth structure from SDF. A total number of 30 extracted premolar teeth were divided into three groups. Each group consist of 10 samples and the colour measurement was recorded using Vita Easyshade Advanced 4.0 (VITA Zahnfabrik GmbH, Bad Säckingen, and Germany) at three different stages (baseline, demineralization and remineralization). Colour differences of colour dimension L, a, b (∆L, ∆a, ∆b) and colour changes (∆E) between groups at different time and value were calculated. There were significant differences among the groups (p