Phocal disks are both powerful and versatile enough to be utilized in a wide variety of preventive, arrestive and remineralization applications. Some of the most common applications include:
- Preventing caries on susceptible interproximal surfaces. Data shows that almost 40% of many posterior interproximal sites are affected by caries (Winn et al J Dent Res 1997, Majare et al Caries Res 1999 and NHANES III).
- Preventing caries based on symmetrical risk patterns. Caries patterns are similar for the left and right side of the mouth, and the upper and lower posterior teeth. Thus, when caries is detected, there is a high probability that symmetrical sites on the opposite side and on the opposing jaw will eventually share the same fate (Sheiham & Sabbah Caries Res 2010).
- Treating radiographically diagnosed incipient caries at interproximal sites. Phocal disks aid in arresting the progression of caries and remineralizing the affected areas.
- Fortifying the margins of interproximal restorations in order to prevent leakage and secondary caries. Studies show that approximately 70% of interproximal restorative therapy that is performed on previously restored teeth is a result of leakage and secondary caries (Mjor Operat Dent 1985, Simacek et al JADA 2009).
Although these applications are less common, Phocal disks can also be used in the following ways:
- To strengthen a tooth's enamel after it has been stripped for orthodontics.
- Treating erupting teeth. Since erupting teeth are more porous, the ability of a Phocal disk to deliver its fluoride dose is more pronounced.
- Navigating compromised interproximal sites. Examples include a residual primary tooth adjacent to a secondary tooth or misaligned teeth.
- Treating periodontal interproximal sites and furcations where the gingiva has receded, leaving exposed root dentin that is susceptible to caries. Phocal disks are used to prevent caries or remineralize affected dentin.
- To strengthen the margins of planned restorations or sealants.