 Hypothesis: Preventive handling and caring advices to parents of newborns decrease craniofacial asymmetries deformational plagiocephaly and torticollis. The minimum sample size of the study was calculated at 86 43 in each arm using a 5 significance level, a power of 80 and a fall in the prevalence of DP from 31 to 8. Craniofacial asymmetries and appearances of occlusal defects are followed up to 9 years. 50 preterm infants can participate without intervention. 