Countries with the unhealthiest teeth (diseased or missing)07/15/2015July 15, 20151. Poland 3.8 | 2. Hungary 3.3 | 3. Czech Republic 2.6 | 4. Slovak Republic 2.4 | 5. Korea 2.2 | Source: OECDhttps://p.dw.com/p/1FyyiImage: DW/A. SlavnicAdvertisement