Dental Filling or Dental restoration is a treatment modality to restore the missing tooth structure which could have been a result of decay (bacteria that destroys the teeth with its acid) or trauma (a force that has broken the tooth). Decay makes the tooth hollow. A dental filling helps to fill this gap and protect it from further decay. A filling is also used to repair broken or cracked teeth and the teeth that wear off due to dental habits like teeth grinding, nail-biting, etc. Dental Filling or Dental restoration is a treatment modality to restore the missing tooth structure which could have been a result of decay (bacteria that destroys the teeth with its acid) or trauma (a force that has broken the tooth). Decay makes the tooth hollow. A dental filling helps to fill this gap and protect it from further decay. A filling is also used to repair broken or cracked teeth and the teeth that wear off due to dental habits like teeth grinding, nail-biting, etc.