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A method for studying changes in sagittal structures of the rat skull
Author(s) -
LA COUR S.,
MELSEN B.,
SCHRAMM J. E.
Publication year - 1974
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1974.tb01921.x
Subject(s) - sagittal plane , skull , reproducibility , craniofacial , anatomy , biomedical engineering , orthodontics , mathematics , materials science , biology , medicine , statistics , genetics
– Radiocephalometric studies of the rat skull involve considerable inaccuracy, for which reason a new method for the investigation of craniofacial growth in rats has been developed. Rat skulls were embedded in methyl methacrylate and the midsagittal plane marked. Parasagittal sections, 500 μm thick, were cut and on the section comprising the midsagittal structures, angular and linear measurements were carried out. Duplicate measurements were performed by one person and by two different persons. The error of the method was calculated on the first set of duplicate measurements and the reproducibility was expressed as t values based on comparison of the original and the second set of duplicate measurements. The accuracy of the method described was found to be superior to that of previous radiocephalometric studies.