Periodontal care attendance in Denmark in 2012-2016 - a nationwide register-based study.

Patients with periodontitis have large out-of-pocket yearly expenses for periodontal care. Despite small changes in periodontal clinical practice that may indicate improved targeting of patients in need of periodontal care, challenges of reaching non-attenders and non-adherence to care are unsolved. More research into outcomes from periodontal therapy in daily practice, seen from both normative and patient perspectives, would help establish knowledge of the efficiency of existing periodontal care systems and help identify barriers and facilitators for attending care in Denmark.