Why Are Stubborn Stained Teeth Resistant to Whitening?
Stubborn stained teeth resist whitening because the discoloration goes deep into the enamel and affects the dentin underneath. Traditional whitening methods may struggle to fully eliminate these stubborn stains. Professional treatments or lifestyle changes could be more effective in dealing with this type of deep-seated discoloration. Key Points Stubborn stains are deeply embedded in enamel, […]
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