Fig. 18From: Efficacy of hyaluronic acid, absorbable collagen sponge, and their combination in minimizing bisphosphonate-related osteonecrosis of the jaws (BRONJ) after dental extraction: a preliminary animal histomorphometric studyAlveolar bone section. In group HA, 8 weeks after tooth extraction, some empty lacunae (arrow) are seen (H&E)Back to article page