Is occlusion affected to a tooth-root during development?

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We analyzed whether occlusion is related to a tooth-root during root development in rat molars. First, we measured the width of cusps and root length using μ-CT. We demonstrated that the width of cusps in normal groups is significantly wider than that of experimental groups and the root length in normal groups is shorter than that in experimental groups. Furthermore, we elucidated that proliferating cells in root apex of normal groups is significantly less than that of experimental groups. These data have been accepted and published in European Journal of Oral Sciences.