My partner's teeth are in very poor condition (the teeth are black, some are missing, there are black spots along the sides, etc.). He is only 37 years old and says he is very afraid of the dentist; finances are also a problem. I wanted to encourage him to make what I believe is an urgently needed visit to a dentist, but more or less "fell on deaf ears". Nevertheless, I am very interested in whether, for example through kissing, the condition of his mouth can be transmitted to my teeth.
Thank you for your answer!

Dear Sir/Madam!

The condition itself is not transmitted to your teeth. However, when reviewing studies, we can see that bacterial flora (which in a person with numerous carious processes and periodontal disease is substantially different from that of a healthy person) can be transferred into the oral cavity of a healthy person. Similar associations have also been observed between mothers and children. Mothers who have periodontal disease and an increased KEP index have children with a substantially higher probability of disease in the oral cavity (both dental and periodontal tissues). In short: your condition can be worse because of your partner's condition.

Have a nice day!