Tooth polishing with the prophy cup is preferred for especially pain-sensitive patients. Treatment with the prophy cup has especially proven itself with regard to the sensation of pain in response to cold and/or air. Children and patients with anxiety should be introduced to prophylaxis treatment step by step. In these cases, it's also advisable to use a prophy cup.
In addition, there are patient groups (e.g., asthmatics) for whom treatment with air-powder-water devices is generally not recommended, as this treatment leads to a higher aerosol load.