If you have a bitterness of the taste inside the mouth, there are many reasons. It may be related to problems in the mouth such as gum disease, mouth infections or dry mouth caused by lack of drinking water.
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taste
Why do i have tooth sensitivity ?
Teeth sensitivity is the taste of ice cream or a sip of hot coffee sometimes a painful experience for you? Does brushing or flossing make you wince occasionally? If so, you may have sensitive teeth. Possible causes include: