Final answer:
The healthy alveolar crest of bone is located approximately 1-2 mm below the CEJ, following the tooth contours, and the alveolar bone proper appears as a dense radiopaque line on radiographs. The alveolar process of the maxilla and the alveolar process of the mandible are essential for securing teeth in the jaw.
Step-by-step explanation:
The alveolar crest of bone, in health, is located approximately 1-2 mm below the cementoenamel junction (CEJ). The contour of the alveolar crest of bone follows the contours of the teeth, creating an undulating line that responds to the shapes of the crowns and roots of the teeth. In dental radiographs, the alveolar bone proper is visible as a dense radiopaque line that outlines the tooth sockets, known as alveolus, where the roots of the teeth are held in place within the jaws. The alveolar processes play a crucial role in dental health and function, holding the teeth within the maxillary and mandibular bones.
The alveolar process of the mandible is the upper border of the mandibular body that contains the lower teeth. The alveolar process of the maxilla is the curved, inferior margin of the maxilla that supports and anchors the upper teeth. Both alveolar processes are integral to the structure of the jaw and dental arches, ensuring that individual teeth are securely anchored in place, allowing for effective biting and chewing.