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The alveolar process comprises cells and periosteum, also encompassing nerves, blood vessels, and lymphatic vessels. [7] The alveolar crest terminates uniformly at about the neck of the teeth (within about 1 to 2 millimetres in a healthy specimen), [13] [14] while the alveolar process terminates along the line of the mandibular canal.
Socket preservation or alveolar ridge preservation (ARP) [1] is a procedure to reduce bone loss after tooth extraction to preserve the dental alveolus (tooth socket) in the alveolar bone. A platelet-rich fibrin (PRF) [ 2 ] membrane containing bone growth enhancing elements can be stitched over the wound or a graft material or scaffold is placed ...
The PDL also undergoes drastic changes with chronic periodontal disease that involves the deeper structures of the periodontium with periodontitis. The fibers of the PDL become disorganized, and their attachments to either the alveolar bone proper or cementum through Sharpey fibers are lost because of the resorption of these two hard dental tissue.
The permanent right maxillary central incisor is identified by the number "8" in the universal system. In the FDI system, the same tooth is identified by the number "11". The palmer system uses the number and symbol, 1 ┘, to identify the tooth. Further confusion may result if a number is given on a tooth without assuming (or specifying) a ...
Tooth development begins at week 6 in utero, in the oral epithelium. The process is divided into three stages: Initiation; Morphogenesis and; Histogenesis [2]; At the end of week 7 i.u., localised proliferations of cells in the dental laminae form round and oval swellings known as tooth buds, which will eventually develop into mesenchymal cells and surround the enamel organ.
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Bolton's formula concludes that if in the anterior portion the ratio is less than 77.2% the lower teeth are too narrow, the upper teeth are too wide or there is a combination of both. If the ratio is higher than 77.2% either the lower teeth are too wide, the upper teeth are too narrow or there is a combination of both. [59]
"The oral region comprises 1% of the total body area, yet it accounts for 5% of all bodily injuries. In preschool children, oral injuries make up as much as 17% of all bodily injuries. The incidence of traumatic dental injuries is 1–3%, and the prevalence is steady at 20–30%."