Table 1.

Definition of the three risk groups for endoprosthesis (EP) infection with oral origin.

Low Risk	Moderate Risk	High Risk
No (invasive) dental or periodontal treatment need EP implantation without any oral health considerations.	Carious lesions with dentin exposure, with healthy pulp status Moderate periodontal treatment need, i.e., periodontal screening index (PSI) ≥ 3 in maximum of two sextants No apical radiolucency, no inflammatory findings in radiographs EP implantation with a subsequent referral to the dentist at 6 months after EP implantation.	Profound caries, touching the pulp chamber Severe periodontal treatment need (e.g., suppuration, endo-perio-lesion) Apical radiolucencies (partly) retained teeth with pericoronal inflammation, inflammation in jaw bone, additional inflammatory findings EP implantation is deferred until potential dental focus is therapized. Referral to family dentist and/or specialists for demand-oriented dental therapy using standardized forms.