There are multiple artists with this name.
1) Baby Teeth, an indie rock band from Chicago which formed in 2004. Members include Pearly Sweets (vocals, keyboards), Jim Cooper (bass, vocals), and Peter Andreadis (drums, vocals).
2) baby teeth (stylized in lowercase), real name Mary Zheng, an indie musician from Philadelphia, PA.
3) Babyteeth, also known as PIXIEBL00D, a sculptor and alternative musician from Montreal, QC.
4) Babyteeth, also known as Reggie B☯Y, an electronic musician from Pittsburgh, PA. Read more on Last.fm