1. An excessive use of the fluoride…even though, it is true that, fluoride helps in whitening the teeth, but it will turn to be otherwise if we overly use it…
2. According to the experts, certain medications can lead to staining the teeth! Therefore, we should always refer to the doctor’s instructions and never take a medicine without the doctor’s recommendation…
3. it has been resulted that, coffee, tea, wine, and red fruits help very much in staining the teeth, and will discolor the teeth as well if we don’t rinse thoroughly…moreover, the teeth can also be discolored if it has poor oral hygiene
4. Improper care would definitely lead to have stained and yellow teeth…