Cessation of fluoride dentifrice use removes a significant source of topical fluoride application to the teeth. Fluoride, when present in the oral environment, incorporates into the enamel structure, forming fluorapatite. Fluorapatite is more resistant to acid dissolution compared to hydroxyapatite, the natural mineral component of enamel. Therefore, the absence of fluoride can lead to a gradual weakening of tooth enamel.
The continued application of topical fluoride through dentifrice is an essential component of caries prevention. Studies have demonstrated a significant reduction in dental caries rates in populations with access to fluoridated toothpaste. Discontinuing its use effectively eliminates a readily available and relatively inexpensive method of maintaining enamel strength and buffering against acid attacks resulting from dietary sugars and starches. This preventative measure has contributed greatly to overall dental health since its introduction.