Kamimura M, et al. - Authors sought to clarify whether or not a long waiting time before tooth extraction during the past year may be related to an increased risk of delayed wound healing beyond 8 weeks after tooth extraction, which may be a risk factor of osteonecrosis of the jaw (ONJ). Findings suggested that for delayed wound healing beyond 8 weeks after extraction in patients aged ≥ 60 years, a long waiting time before tooth extraction may be a risk factor. A significantly higher risk of delayed wound healing was seen in the subjects who had waited > 2 months for tooth extraction vs those whose tooth was extracted within 1 month regardless if antiresorptive medications for osteoporosis were used.