A cavity isn’t something you catch—it’s tooth damage caused by repeat acid attacks. This scenario-driven guide explains what can transfer between people, why adult kissing rarely changes risk, and which conditions actually drive new decay.
Kissing can transfer bacteria, but adult cavities usually aren’t “caught.” The real mechanism is acid frequency—diet, plaque control, saliva flow, and fluoride exposure.
Kissing can transfer oral bacteria, but cavities don’t form on contact. Learn what actually drives decay in couples—and the specific steps that prevent repeat dental work.