As the word describes “Preventive” refers to branch of dentistry which caters to ensuring your oral hygiene is in order so that you may prevent any oral illness with respect to cavities, gum diseases, misalignment, mouth ulcers etc. to complicate. In order to ensure, periodical visit to the dentist would be advised for basic clean-ups, polishing and Minor dental fillings if required. So that oral complications leading to expensive treatment can be avoided.