title: Cost/efficiency studies in periodontal treatment.
mesh_terms: D000328:Adult; D003362:Cost-Benefit Analysis; D003774:Dental Plaque Index; D006801:Humans; D008875:Middle Aged; D009664:Norway; D010510:Periodontal Diseases / Q000191:economics / Q000628:therapy; D010517:Periodontics / Q000191:economics*; D013647:Task Performance and Analysis