Fig. (3) Schematic drawing of histomorphometric analysis of periodontal wound healing. (DH, defect height; DW, defect width; NC, new cementum; PL, new periodontal ligament; NBH, new bone height; NBA, new bone area; AK, ankylosis; CT, gingival connective tissue; JE, junctional epithelium; GR, gingival recession; N, notches).