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Bone thickness of the alveolar bone is not affected by miR‐21. Bone thickness of the alveolar bone at four anatomical sites (green arrows), buccal (B), upper lateral (UL), medial lateral (ML) and lower lateral (LL) (A). Quantitative analysis of bone thickness at the extraction socket in different anatomical sites (B). Quantitative analysis of bone thickness at the contralateral tooth in different anatomical sites (C). Statistical analysis was based on Mann‐Whitney U test
