Of course, dreaming of losing teeth symbolizes the superstition that relatives will have disasters. Freud clearly pointed out in his masterpiece The Interpretation of Dreams that it is absurd and wrong to dream of losing one's teeth to symbolize the death of someone in the family, and the correct explanation should be a symbol of psychological castration.
In the process of dream interpretation, the author encountered the dream of tooth loss many times and found its meaning varied. Here, I summarize a few popular symbols for your reference:
Dreaming of losing a tooth just symbolizes that there is something wrong with the tooth itself.
One of the main sources of dreams is physiological stimulation, so the meaning of some dreams is the physiological situation of direct reaction. For example, many people may have dreamed of looking for a toilet in their dreams, and most of them go straight to the bathroom after waking up. In fact, this is a dream caused by bladder swelling. Therefore, dreaming of tooth loss may also be purely caused by physiological factors, such as worm teeth or tooth lesions.