[Occlusal anomalies in the deciduous and mixed bites].

In 311 examinees (177 boys and 134 girls) with primary dentition and 535 examinees (285 boys and 250 girls) with mixed dentition in Istria--Croatia, the frequency of orthodontic and occlusal anomalies in regard of space plane and premature extraction of c, m1 and m2 are investigated. The orthodontic anomalies are fortified in 46.95%, premature loss in 11.25% and occlusal anomalies in 40.83% of examinees with primary dentition, while in mixed dentition the 58.69% of examinees have orthodontic anomaly, the 17.20% premature loss and the 48.97% of examinees have occlusal anomaly. In both phases of dentition the most frequent are occlusal anomalies: combination of sagittal-vertical plane, and those in sagittal and vertical space plane respectively.