Hello thanks for consulting at hcm..
Firstly
tingling sensation could be fasiculations,,which occurs as a result of irritability of the nerve fibres..
There are lot of causes for twitching/tingling, the most common are due to
magnesium deficiency. It usually results in hyperexcitablity,
muscle weakness, and fasiculations..
So don't worry, try reducing the
anxiety by keeping yourself calm, do breathing exercises, try yoga...Since
dentist has taken x-rays, and confirmed there is no infection in the tooth..
It also subsides when you go to bed,, that is the reason,,it might be stress related..
To overcome magnesium deficiency you could take nutritious food, leafy vegetables, nuts and wheat bran..Hydrate yourself well by drinking lots of water,,soups..
Hope it helps,,take care...