Being born with one missing tooth is a genetic cause, due to the germ being missing during development, resulting in being born with one missing tooth, which is a general condition. There are some cases where a tooth is missing in the oral cavity, but the missing tooth may be buried in the jawbone and not erupted, so it is not detected, and a dental radiograph is needed to determine this. There are many possible conditions that can cause a tooth to not erupt and block, including abnormalities in development and not having enough space for eruption. Therefore, if you find a missing tooth, you can go to the hospital to check whether it is a congenital missing tooth or a tooth that has not erupted and has an ambiguous blockage in the jawbone, which needs to be treated accordingly. If the tooth is really an ambulatory obstruction, some of them can be considered for surgical extraction.