[ 3h ] tdr was used to analyze cell proliferation in eight cell types in the developing mouse incisor including upper ( lingual ) and lower ( buccal ) pulpal fibroblasts , preodontoblasts , inner and outer enamel epithelial cells ( iee and oee ) , stratum intermedium ( si ) , stellate reticulum ( sr ) , and periodontal ligament ( pdl ) fibroblasts .
C0011350
enamel
C1514987
stratum intermedium