title: [Approach to periodontal diseases--evaluation of new dental insurance].
mesh_terms: D003774:Dental Plaque Index; D005890:Gingivectomy / Q000191:economics; D006801:Humans; D007347:Insurance, Dental / Q000592:standards; D007564:Japan; D010510:Periodontal Diseases / Q000191:economics* / Q000628:therapy