Fig. 4.

Fig. 4. Reversible effect of BPE on alveolar bone loss in age-related periodontitis in rats. (A) Micro-computed tomography (CT) images. Yellow arrow, CEJ; green arrow, ABC. (B) Quantification of the CEJ-ABC distance. CEJ, cementoenamel junction; ABC, alveolar bone crest. The alveolar bone loss is expressed as the mean ± SD (mm) of five rats per group. ^##p < 0.01 (young control vs. aged control group) and *p < 0.05 (aged control vs. BPE-treated aged group).

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