Hi, two days ago I started having strange gritty feeling in my mouth, along my inner lips and front teeth.  My gums are also suddenly bright red.  I dont have any mouth sores or other issues.  Any ideas what would trigger that?  Even sipping water makes my teeth feel gritty.
Thanks for your query. I have gone through your query. The gritty feeling in the teeth and the redness over the gums can be because of the gum infection like gingivitis or periodontitis. When there is recession of the gums the dentin of the teeth will get exposed and this results in sensitivity or gritty feeling when you sip fluid or hot and cold things. Nothing to be panic. Consult an oral physician and get your teeth cleaned and use desensitizing toothpaste like sensor or sending(strontium chloride and potassium fluoride). I hope my answer will help you. Take care.