Patchy outcomes frequently originate from irregular gel application; use well-fitted trays and avoid overfilling to avoid streaks
https://donovanqjjh773.theglensecret.com/how-professional-teeth-whitening-really-functions-the-science-2
Irregular outcomes typically originate from unequal gel application; use well-fitted trays and prevent overfilling to prevent streaks, gum inflammation, and squandered product.