Dental The three main vertical pillars of trajectories of force arising from the alveolar process and ending in the base of the skull are all except: A Canine pillar B Zygomatic pillar C Pterygoid pillar D Condylar pillar 💡 Explanation The three main vertical pillars of trajectories of force arising from the alveolar process and ending in the base of the skull are all except: ✓ Correct Answer: D. Condylar pillar