the dentist referred to the vertical groove in each of my two front teeth as creases. i m beginning to experience discomfort in the top and lower gum area, but no decay. the dentist suggested wearning a mouth guard during the day since I clinch my teeth during the day. I may even clinch at night. what can cause these creases and discomfort. can any of these symptons be related to scripts? I take metformin and lisinopril, multi vitamin and fish oil. age 50, 5 4 175 lbs. controlled diabetes--A1C 5.7 took janumet previously, being weened from diabetic meds. hypertensive but controlled with lisinopril hctz 12.5/20