What is alveolar crestal bone?
What is alveolar crestal bone?
The alveolar crest is the most coronal portion, or the top, of the alveolar process. It is an extension of both the mandible and maxilla and holds the tooth sockets. The alveolar crest is often the first portion of the alveolar process that is damaged by periodontal disease and is therefore the first bone that is lost.
What is the bone between teeth called?
The alveolar bone is located between two neighboring teeth is the interdental septum.
What is interdental bone?
The portion of alveolar bone between two adjacent teeth is known as the interdental septum (or interdental bone). The connected, supporting area of the jaw (delineated by the apexes of the roots of the teeth) is known as the basal bone.
What type of bone is alveolar bone?
Alveolar bone is that part of the maxilla and mandible which supports the teeth by forming the “other” attachment for fibres of the periodontal ligament (Fig. 1.148). It consists of two plates of cortical bone separated by spongy bone (Fig. 1.149).
What is PDL space?
periodontal ligament space Abbreviation: PDL space. A radiolucent space that appears on a dental radiograph between the tooth and the adjacent lamina dura. The space is occupied by the periodontal ligament, which lacks the density to be radiopaque.
What is lamellar bone?
Lamellar bone represents the main type of bone in a mature skeleton. It is characterized by an orderly arrangement of collagen bundles and their cells (fig. 8a-c). Osteocytic lacunae in lamellar bone are uniform and regularly distributed and contain relatively monomorphic cells (fig. 7b).
What is PDL in dentistry?
The periodontal ligament, commonly known as the PDL, is a soft connective tissue between the inner wall of the alveolar socket and the roots of the teeth. It consists of collagen bands (mostly type I collagen) connecting the cementum of teeth to the gingivae and alveolar bone.
What is Interradicular bone?
The alveolar bone between the roots of multirooted teeth.
What happens to alveolar bone after extraction?
Most of the bone loss occurs during the first six months after the procedure. Afterward, the resorption rate increases at a pace of 0.5–1% on average annually [3,6,7]. Moreover, an estimated 50% of the alveolar bone width is lost within 12 months after the extraction, 30% of which occurs within the first 12 weeks.
How does alveolar bone develop?
The alveolar bone begins to first form by an intramembranous ossification with in the ectomesenchyme surrounding the developing tooth. This first formed bone is called as woven bone is less organized and is replaced with more organized lamellar one. When a deciduous tooth is shed, its alveolar bone is resorbed.
What is dehiscence bone?
Dehiscence are isolated areas in which root is denuded of bone and root surface is covered by periosteum and overlying gingiva but the denuded are extends through the Marginal Bone. In Dehiscence there is no bone on one side of it (coronally) and is measured with the use of graduated periodontal probe.
