Regular preventive dental care visits are associated with lower follow-up costs and utilization of dental services. Patients who received preventive care in both study years spent an average of €50 on dental services, compared to €114 for those who received preventive care in one year only and €190 for those who received no preventive care. Across all dental service categories, including diagnostic, basic restoration, major restoration, endodontics, periodontics, prosthodontics, and oral surgery, expenditures were consistently lowest for those who received regular preventive dental visits.