Abstract: Objective  To provide cephalometric floating norms to evaluate the individual craniofacial patterns of the male children in Shandong area. Methods  Eighty-one male children with normal occlusion in Shandong area were enrolled, ranged 8-12 years. Cephalometric measurements of SNA, SN-PP, NSBa, SN-MP and SNB were selected and analized by multiple regression. SNB, which had the highest correlation with the other indicators, was found out. Bivariate linear regression equation was established with SNB as the independent variable; multiple regression equations were established with the other indicators as the independent variables; standard errors of the estimate (SE) of each measurement was calculated by multiple regression analysis. Results  The SE of SNA, SN-PP, NSBa, SN-MP and SNB were 1.97°, 3.32°, 3.75°, 4.31° and 2.03°, respectively. Conclusion  A means by using the cephalometric floating norms to evaluate the individual craniofacial patterns of the male children in Shandong area was established. It may be helpful for the orthodontic-orthopedic diagnosis and treatment for the male children.

Key words: regression； Shandong area, norms, Multiple , Cephalometric, Floating