Right Lower First Secondary Premolar Tooth (Dens premolaris primus mandibularis dexter)
Educational content only — not medical advice.
Anatomy
The right lower first secondary premolar tooth (FDI #44, Universal #28) is located posterior to the canine in the mandibular dental arch. Uniquely characterized by a dominant, pointed buccal cusp and a diminutive, non-functional lingual cusp connected by a transverse ridge, its occlusal profile resembles a transition between canine and premolar anatomy, acting to crush food.
Clinical notes
The mental foramen and mental nerve typically lie in the mandibular bone beneath the apices of the lower first and second premolars; surgical incisions and periapical procedures require caution to prevent mental nerve paresthesia.
Related structures
Educational references
FAQ
What is the role of the Right Lower First Secondary Premolar Tooth?
The right lower first secondary premolar tooth (FDI #44, Universal #28) is located posterior to the canine in the mandibular dental arch. Uniquely characterized by a dominant, pointed buccal cusp and a diminutive, non-functional lingual cusp connected by a transverse ridge, its occlusal profile resembles a transition between canine and premolar anatomy, acting to crush food.
Why is the Right Lower First Secondary Premolar Tooth clinically important?
The mental foramen and mental nerve typically lie in the mandibular bone beneath the apices of the lower first and second premolars; surgical incisions and periapical procedures require caution to prevent mental nerve paresthesia.
Source & license
BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/). license details