What can i do about clenching teeth when sleeping ?

Nightguard: If you are clenching at night, it may be causing facial pain, headaches and weakening your teeth and the bone surrounding your teeth. You should see a dentist that can fit you for an oral appliance that will reduce or eliminate your clenching. Nti's are proven to be effective. They reduce the muscle activity during sleep which helps to heal your overworked muscles.

Stop the damage: It is important to stop night grinding (bur ism) from causing damage to teeth and supporting structures. Your dentist can supply you with a night guard, a plastic appliance, to be worn while asleep, that will minimize any damage due to the extreme forces grinding can create.