Cosmetic Dentistry · Harley Street, Marylebone
White Spot Treatment (Icon Enamel Infiltration)
White spots on teeth are areas of hypomineralisation, patches where the enamel is structurally incomplete or porous, causing them to appear opaque against the surrounding tooth surface. They can be caused by early decay, fluorosis, or developmental disruption during childhood, and they cannot be resolved with whitening alone. At This Is It Dental, we treat them using Icon enamel infiltration, a non-invasive system that eliminates the spot without drilling, injections, or removal of any tooth structure.
The Biology of White Spots
To treat a white spot effectively, Dr. Rena Uberoi first diagnoses its biological origin. These patches generally form due to one of three clinical factors:
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Incipient Caries (Early Decay)
When plaque biofilm remains on enamel for extended periods, its acidic by-products leach minerals out of the tooth. This subsurface demineralisation alters how light travels through the enamel, creating a chalky white appearance. Particularly common around the margins where orthodontic brackets were previously attached.
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Fluorosis
Exposure to elevated fluoride concentrations during childhood, while adult enamel is still forming within the jawbone, can disrupt mineralisation, leaving faint white lines or mottled patches across the teeth.
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Enamel Hypoplasia (Developmental Trauma)
A high fever, nutritional deficiency, or localised trauma to a baby tooth during early childhood can disrupt the cells responsible for building enamel (ameloblasts), resulting in a localised zone of porous enamel on the permanent tooth.
Why the Icon System Works
Historically, treating a persistent white spot required either waiting for the area to fully decay into a cavity, or aggressively drilling away the healthy outer enamel to cover the blemish with a porcelain veneer. Both approaches involve unnecessary biological damage.
Icon Enamel Infiltration changes this entirely. The system uses a highly fluid, light-curing resin that penetrates deep into the microscopic pores of the demineralised enamel. By filling these internal spaces, it alters the refractive index of the porous zone so that it matches the surrounding healthy enamel. Light travels through the tooth uniformly once more, and the white spot fades into the natural shade of the tooth.
The Clinical Process
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Isolation and Conditioning
The teeth are thoroughly cleaned. A liquid rubber dam protects the gums. A specialised mild gel (Icon-Etch) is applied to the enamel surface for two minutes, gently removing the hyper-mineralised outer layer and exposing the underlying microscopic porosities.
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Desiccation (Drying)
The etched surface is rinsed and dried with a specialised ethanol drying agent (Icon-Dry), removing all moisture from the enamel pores. This step also provides a preview of how the tooth will look once infiltrated.
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Capillary Infiltration
The highly fluid Icon-Infiltrator resin is applied to the tooth. Over three minutes, the resin is drawn deep into the porous enamel matrix via capillary action, displacing trapped air and water throughout the lesion.
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Light Activation
Excess resin is carefully removed from the margins. A high-intensity LED curing light hardens the resin within the enamel pores, sealing the structure permanently.
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Finishing and Polish
A second, final layer of infiltrator is applied and cured for maximum density. A meticulous polishing sequence using ultra-fine discs and diamond paste restores a smooth texture and natural glass gloss to the enamel surface.
Clinical Benefits
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Absolute Enamel Preservation
The procedure is entirely additive and non-destructive. 100% of your healthy, natural tooth structure is left completely intact.
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Zero Discomfort
Treatment is restricted strictly to the outer enamel layer and does not reach the nerve-rich dentine beneath, making the procedure completely painless. No drilling, no anaesthetic.
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Arrests Early Decay
Beyond the aesthetic result, the infiltration resin blocks the diffusion path of acids, effectively halting the progression of early-stage lesions before they develop into full cavities.
Transparent fees
| Clinical Consultation & Digital Enamel Mapping | Confirmed at consultation |
|---|---|
| Icon Enamel Infiltration (single tooth) | Confirmed at consultation |
| Icon Enamel Infiltration (full smile arc zone, up to 6 teeth) | Confirmed at consultation |
Fees confirmed in writing at your consultation. No treatment proceeds without your agreement.
Email Dr Rena Uberoi
Send us an email and we aim to get back to you the same day.
Frequently asked questions
Can every white spot be treated with Icon infiltration?
Icon is highly effective for superficial and moderate white spots caused by early decay, fluorosis, or developmental trauma. However, if a white patch is deeply embedded within the inner dentine layer, or if the enamel has structurally collapsed into an open cavity, the infiltration resin cannot reach the lesion. Dr. Uberoi maps your enamel during the initial assessment to confirm this is the correct clinical option for your specific situation.
Will the treated white spots return over time?
No. Once the microscopic enamel pores are infiltrated and light-cured, the resin forms a permanent structural bond within the tooth. The white spot will not reappear, and the internal resin does not degrade over time.
How does Icon treatment interact with teeth whitening?
It is highly recommended to complete your professional whitening course before undergoing Icon treatment. Whitening lifts the baseline shade of your natural enamel. Once your teeth reach their optimal brightness, the Icon infiltration is performed to match the white spots precisely to your new, brighter smile.
Will the infiltrated resin stain from coffee or red wine?
The Icon resin behaves similarly to your natural tooth enamel. While it is highly stain-resistant, the surface can pick up minor extrinsic discolouration over several years from heavy consumption of dark liquids. These surface micro-stains are easily and safely removed during routine professional hygiene cleanings using Aquacare Airflow technology.
Book a white spot assessment
Book a consultation for an honest assessment and a clear written plan.