The most common meaning
Teeth-loss dreams tend to surface when something in waking life feels like it is slipping out of your grip. Teeth are tools we use to bite, chew, and speak, so losing them often mirrors a fear of losing capability, security, or your footing during a change you did not choose. The dream rarely predicts anything literal about your teeth; it dramatizes a feeling of diminished power or control.
Common variations and what they shift
Teeth crumbling slowly can reflect a worry that builds quietly rather than a single shock. Spitting teeth into your hand can point to something you are trying to hold together by force. Rotten or broken teeth often connect to a fear of decay in a relationship, a project, or your own self-image. Painless loss frequently maps to change you sense is coming but cannot yet name.
The self-image angle
Because teeth are central to your smile, these dreams also speak to how you believe you are perceived. They cluster around moments of evaluation — a new job, a performance, a first impression, aging — where a part of you is asking whether you are presenting the version of yourself you want others to see.