Preventive dentistry refers to the practices within dental medicine and surgery that seek to eliminate, reduce and or minimize the need for dental treatments that require invasive therapy, or "cutting" of the dental tissue. there are really three phases of preventive dentistsry, prevention of one from getting dental disease, treating it as non-invasively as possible and use fo preventive principles to help avoid the return of the disease. Prevention should really begin from the time we have teeth, or about age one. Regular home care, brushing, visiting the dental professional, dental sealants and use of a fluorided tooth paste can help assure complete prevention of dental disease as it relates to caries or advancement of caries into cavities, holes in the teeth. For those high risk individuals who do develop caries, early intervetion is key to prevent the need for cutting the tooth and placing a filling. This is often done by medical management of dental disease through early diagnosis aidded by risk assessment, patient counsuling and use of appropriate theraputic agents such as fluordie gels and varnsihes, oral antibiotics and remineralizing agents, such as as MI paste with RECALDENT. Once the caries process advances to full demineralization of dental tissue, the hard tooth structure breaks down and invasive or some sort of cutting treamtent is needed to remove the diseased part of the tooh. Here preventive approaches would aim to use techniues such as ultra small burs or lasers and biogenic material such as glass ionomers that minimize the amount of the dental tissue that need to be cut away. Similar preventive approaches used in the prevention of caries are would be used to help prevent the disease from coming back.