Fluorides

Fluorides

While the sealants protect the tops of the teeth, fluoride protects all tooth surfaces. Fluorides make teeth more resistant to decay, prevent, stop or even reverse early decay. They are also used for treating tooth sensitivity.

Professionally applied topical fluorides (gels, foams, varnishes) are recommended to patients of all ages with moderate or high decay risk, in addition to regular at-home care (fluoride toothpaste, fluoride mouth rinses). The above guideline also applies to regions, where tap water is fluoridated (Burlington, Halton Hills, Oakville, and the new developments in Milton). Patients at moderate caries risk should receive a professional fluoride treatment at least every 6 months; those with high caries risk – every 3-6 months.

Among all topical fluoride products, the most efficient are fluoride varnishes, lowering tooth decay experience by 40-75%. Fluoride varnish is applied on all teeth surfaces with a disposable brush, and air-dried. The varnish sets in a few seconds leaving a fluoride rich layer adjacent to the tooth surface. For a maximum effect, one should avoid brushing their teeth for the rest of the day and to avoid eating for the next 2 hours. A soft diet is recommended for the rest of the day.

Topical fluorides present no risk of fluorosis unless they are swallowed. This risk applies mostly to young children who tend to swallow toothpaste while tooth brushing. In-office application of topical fluorides is scheduled, performed and controlled by a dental professional, and therefore considered safe.

The Canadian Dental Association supports the professional topical application of fluoride gels, foams, and varnishes in the prevention of tooth decay.