Document focus on several aspect that has influence on teeth health. For the needs of this work 420 8 year children living in Krakow region were examined. Researches proved that pollution, hygiene of oral cavity, level of parent’s education has strong influence on state of teeth health. Appearance of occlusion defects in Krakow city region is on high level (68,33%). Therefore at that area there is strong need for specialist orthodontic treatment and early prophylactic orthodontic treatment. Also there is strong need for development of dentistry health education focusing on caries prophylactic, occlusion defects and hygiene of oral cavity.