Preventative dentistry describes the methods by which dental problems (e.g. tooth decay, periodontal disease) are minimised or prevented by reducing your risk level for oral disease, and carrying out early minimally-invasive treatment to prevent initial problems developing into something more serious.
The dentist, hygienist or oral health advisor can give advice if required on oral hygiene and diet.
For patients at increased risk of decay (e.g. with poor oral hygiene, a sugary diet, or existing or historical decay), Fissure sealants can be applied to molar or premolar teeth. These are protective resin coatings which fill in the nooks and crannies on the biting surface of the tooth, making it easier to remove plaque with a toothbrush. Fissure sealants are very simple to apply and require no anaesthetic or cutting of the tooth.
For particular teeth which are showing early signs of decay (but not yet a cavity), Fluoride varnish can be applied which adheres to the tooth for several hours, allowing protective fluoride to leach into the tooth structure and increase decay resistance.