Final answer:
Class I occlusion corresponds with a mesognathic facial profile, where the upper and lower teeth align properly and the protrusion of the forehead, nose, and chin are in vertical alignment from a side view.
Step-by-step explanation:
A Class I occlusion refers to the normal relationship between the upper and lower teeth when the jaws are closed. In this scenario, the upper teeth slightly overlap the lower teeth, and the molar relationship is considered normal, meaning the buccal groove of the lower molars aligns with the mesiobuccal cusp of the upper molars. A person with a Class I occlusion typically exhibits a straight or mesognathic facial profile, where the forehead, nose, and chin are in vertical alignment when viewed from the side.