Dental filling is a restorative procedure to treat a cavity, repair a broken or cracked tooth and a wore-down tooth due to time and/or some habits like nail-biting and tooth grinding/clenching. your dentist will remove the decayed portion of the tooth, clean the affected area and fill it using a variety of filling materials. This will restore the tooth to its original function and shape and prevent further decay. The material we usually use is composite resins (tooth-coloured material).