Final answer:
The normal spaces between the primary teeth are known as primate spaces, which are essential for future tooth development.
Step-by-step explanation:
The normal spaces between the primary teeth are called primate spaces. These spaces are important because they provide the necessary room for the larger permanent teeth to emerge in the future. The primary teeth, also known as baby teeth, have these spaces to accommodate the growth of the jaw and the eventual eruption of the premolar teeth. The premolar is one of eight cusped teeth located in the sides of the jaws between the canine teeth and molars that are used for crushing food.
Understanding the structure of the oral cavity is crucial in dentistry and general health; the oral vestibule is the pocket-like part of the mouth that is framed on the inside by the gums and teeth, and on the outside by the cheeks and lips. Beyond that, the oral cavity proper is the main open area extending to the fauces, which is the opening between the oral cavity and the throat or oropharynx.