After the Committee considered the Fatwa request, it gave the following answer:
The man concerned does not have to remove his artificial teeth for performing Madmadah (rinsing the mouth) during Wudu'. He may perform Wudu' while they are in their place. This is because artificial teeth, like normal ones, do not invalidate Madmadah.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.