The frequency of examinations in the maintenance phase depends on the patient’s individual risk of disease flare-up.
According to the German Society of Periodontology (DG PARO) risk assessment, a preliminary risk classification is carried out on the basis of:
- determination of the bleeding score
- number of sites with a probing depth of ≥ 5 mm
- number of missing teeth
- bone resorption
- and cigarette consumption
The final risk is then established after ascertainment of additional systemic (diabetes mellitus, HIV infection, gingivoperiodontal manifestation of systemic diseases) and genetic factors (detection of interleukin-1B polymorphism with GenoType IL-1). The patient-specific recall interval is derived from this.