The upper face is formed from the:
(A.) Frontonasal process
(B.) Maxillary process
(C.) Mandibular process
(D.) All of the above
Mini Boards Reviews for the National + Local Anesthesia Dental Hygiene Boards
Answer: (A.) Frontonasal process
The upper face (includes the area of the forehead, bridge of the nose, primary palate, nasal septum, nasal pits, and alae) is formed from the frontonasal process.
The middle face (includes the nose from root to apex, center portion of the upper lip, zygomatic bones, portions of temporal bones, cheeks, philtrum, secondary palate, maxillary canines, posterior teeth, and tissue) is formed from the maxillary process.
The lower face (includes the mandible, mandibular teeth, associated tissues and part of the tongue) is formed from the mandibular process.
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