The upper portion covers the roof of your mouth, and the lower is a horseshoe shape that ... determine the size and color of their soon-to-be teeth. From there, the dentist makes a few adjustments ...

Clean the Inside of Your Teeth Open your mouth wide and use the tip of your toothbrush to clean the inner surfaces of both your upper and lower front teeth at a vertical angle. This is a commonly ...

Mice have four incisors, two maxillary (upper) incisors, and two mandibular (lower) incisors. Canine teeth and anterior premolars are absent—the toothless space between the incisors and molar ...