You probably notice that you get more hangnails during the cold winter months. You might also notice that during the winter, your skin dries out really fast. Bingo! You've just hit on one of the main causes of hangnails. Anything that can dry out your skin, such as cold winter weather, harsh chemicals or frequent immersion in water can cause hangnails to develop.
It is not unusual for teeth to hurt after a filling or crown. If the filling is deep or near the nerve or pulp, the filling may ache or be sensitive for several days or weeks. When the cavity is close to the nerve, the body will build a layer of dentin over time to insulate itself from the pain transmitted to the nerve form the filling. Here are some usual reasons fillings will hurt after a tooth is filled: 1) Normal response to the trauma, this pain should subside in several days or weeks. 2) If the tooth hurts only when you bite, the filling may be too high, especialy if this in the first or only tooth you hit when you bite.
1 Removed during scaling and gums may be irritated in the process....  2 Soreness can be because of gum irritation with dental scaler during dental cleaning....  3 If teeth are also getting rotten....  4 It will hurt for 4-6 days after dental filling....  5 Seen bed sores cures that were so deep that you could see the bone....