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Figure 3. Red line in (A) shows the region covered by acellular cementum (ac) in control mice. TRAP-positive cells were present on both the root and the alveolar bone surface in sham (B) and denervated rats (C) at 6 wks. (D) TRAP-positive odontoclasts were measured on the root surface as shown in red in (A). (E,F) Bone histomorphometric indices of the osteoblast surface (E) and osteoclast number (F) were also measured on the modeling alveolar bone surface. (G) Denervation induced cellular cementum (cc) formation among the acellular cementum regions at 6 wks, as shown in red in (A). All data are mean ± SD (n = 5/group). *Significantly different from the values in sham rats (P < 0.05). a, significantly different from the values in 6w- and 8w-DN rats (P < 0.05). cc, cellular cementum; DN, denervated rats; D, dentin; AB, alveolar bone; PDL, periodontal ligament. Bar = 100 µm for C and G.
