Upper second secondary molar tooth at a glance
- What it is
- The permanent upper second molar, a three-rooted grinding tooth at the back of the upper arch in this model.
- Location
- It lies in the upper dental arch, behind the first molar; it usually has three roots.
- Function
- It grinds food.
- Body system
- Digestive · paired (left and right)
- FMA ID
- FMA55700 (Foundational Model of Anatomy)
Key facts
- Typical eruption age: about 12 to 13 years.
- FDI notation: 17 (right) and 27 (left).
- Its three roots are often closer together or partly fused.
- The parotid duct opens into the cheek opposite this tooth.
- The third molars that normally erupt behind it are absent from this model.
Clinical relevance
Dental caries and periodontal disease are the main causes of tooth loss.
Structures next to the upper second secondary molar tooth
The nearest named structures in the 3D model, measured from the centre of each part:
- Upper first secondary molar tooth · digestive
- Pterygomandibular raphe · muscular
- Upper second secondary premolar tooth · digestive
- Lower second secondary molar tooth · digestive
- Upper first secondary premolar tooth · digestive
- Lower first secondary molar tooth · digestive
- Inferior nasal concha · skeletal
- Submandibular gland · digestive
- Palatine bone · skeletal
- Mandible · skeletal
References
- Foundational Model of Anatomy: Upper second secondary molar tooth (FMA55700). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §23.1 Overview of the Digestive System. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.