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About The Video
In this video, Dr Ho Ying Yao discusses a patient case involving white spots on the front teeth that persisted despite several whitening treatments. He explains that these white spots are often caused by fluorosis — a condition that occurs when developing teeth are exposed to excessive fluoride, leading to changes in enamel structure and light reflection. Using clinical photos and diagrams, Dr Ho illustrates how fluorosis creates porous enamel that scatters light, producing visible white patches.
He then introduces Icon resin infiltration as a treatment option for mild to moderate cases. The technique involves gently opening the tooth surface to allow a clear resin to penetrate the porous areas, restoring translucency and blending the white spots with surrounding enamel. Through this case, Dr Ho highlights how the procedure offers a cosmetic solution without the need for invasive drilling or enamel removal.
Fluorosis is a common aesthetic concern that develops during tooth formation when there is excessive fluoride intake. While fluoride strengthens enamel, too much can lead to microscopic porosities that disrupt how light passes through teeth, creating visible white spots. Dr Ho explains that conventional whitening often fails to improve these spots because it cannot change the enamel structure.
Icon resin infiltration provides a conservative solution by targeting the problem beneath the surface. The treatment involves applying an etching agent to open enamel pores, followed by a clear resin that seeps in and hardens, improving light transmission and blending the spots naturally. Dr Ho emphasises that this minimally invasive procedure is best suited for localised white spots and can achieve long-lasting, aesthetic improvement without altering tooth structure — preserving natural enamel while enhancing appearance.
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