title: 1985 JCO orthodontic practice study. Part 1. Trends.
mesh_terms: D000328:Adult; D003365:Costs and Cost Analysis; D005250:Fees, Dental; D006801:Humans; D007182:Income; D009970:Orthodontics / Q000191:economics / Q000639:trends*; D011215:Practice Management, Dental / Q000191:economics / Q000639:trends*; D013997:Time Factors