Non-invasive Therapy With Fluoridated Toothpastes for Root Caries in Independently-living Older Adults

Background. Caries of the root surface (root caries) is the most prevalent type of dental caries in older adults with a reportedly worrisome trend to increase, as more teeth are being retained. Dental caries is the leading causes of tooth loss among older adults. Fluoride has been successfully used in preventive programs for root caries. In addition to preventing root caries, fluoride-based therapies may be used to treat lesions. This approach is known as non-invasive treatment. Fluoride seems to arrest and promote remineralization of the lesions. Indeed, recent studies appear to indicate that, higher fluoride concentrations are more effective to prevent and to treat the disease. Dentifrices with high concentrations of fluoride appear to be the most rational approach to prevent and treat root caries. To the chemical effect of fluoride, toothbrushing adds mechanical removal of the dental biofilm. High concentration fluoride varnishes have also been proposed as effective in treating carious lesions. Whether dentifrices, varnishes or the combined use of varnish and fluoridated toothpaste result more effective is a matter of controversy and it needs to be elucidated. Non-invasive treatment avoids the complications inherent to treating frail people in a dental setting, decrease costs and importantly, allows increased coverage, as these therapies may be delivered by non-dentist personnel. Although the appealing idea of non-invasive treatment of root caries in older adults, evidence is still limited and more research appears necessary to both, confirm clinical success and elucidate the mechanisms involved in lesion arrestment.

Aim. To determine the effectiveness of non-invasive therapies for root caries and their impact in the quality of life of older adults.

Methodology. A double blind randomized controlled trial (RCT) on independently-living older adults aged sixty or more years is proposed. Subjects will undergo clinical and microbiological examination when recruited (baseline) with a six-month follow-up regime until completion of two years. To participate, subjects will have to have at least five teeth with exposed root surfaces and one carious lesion. Sample size was calculated and a sample of two-hundred and eighty-eight older adults is necessary, randomized into two study arms;

Group 1: toothpaste 1.450 ppm F-

Group 2: toothpaste 5.000 ppm F-