Fig. 1

Interdental papilla biopsies performed on a female patient with mucous membrane pemphigoid (a). On the first selected papilla (1), the epithelium cleaved immediately after the primary incisions. Incision of this papilla was therefore stopped. The biopsy was reported to the next adjacent papillae (2 and 3) (b). At 21 days following surgery, healing of the 3 papillae is complete (c)