Three roots on teeth

[eppur_se_muova]

4. OK. BTW, three roots is normal for your biggest teeth.

Molar Teeth

Adult molars are located in the back of the jaw. They have the most chewing surface of any tooth and have three to five chewing cusps. Lower-jaw molars have two large roots, and the upper-jaw molars have three roots.

Maxillary Adult Molar

The biting surface outline is square (not as much as the mandibular molars) with four distinct cusps. Some maxillary molars have an extra cusp (Carrabelli cusp) located on the mesiolingual cusp (tongue side of the tooth). There are three roots: two buccal and one lingual, which is the longest of the three (Figures 16 and 17).

https://www.sciencedirect.com/topics/immunology-and-microbiology/molar-tooth