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The cervical margin of a tooth is the surface above the junction of the crown of the tooth and the root of the tooth. [ 1 ] Cervical margin surface of the tooth is highlighted in green
The cervical loop is the location on an enamel organ in a developing tooth where the outer enamel epithelium and the inner enamel epithelium join. The cervical loop is a histologic term indicating a specific epithelial structure at the apical side of the tooth germ, consisting of loosely aggregated stellate reticulum in the center surrounded by ...
The tooth bud (sometimes called the tooth germ) is an aggregation of cells that eventually forms a tooth and is organized into three parts: the enamel organ, the dental papilla and the dental follicle. [3] The enamel organ is composed of the outer enamel epithelium, inner enamel epithelium, stellate reticulum and stratum intermedium. [3]
In animal tooth development, the stellate reticulum is a group of cells located in the center of the enamel organ of a developing tooth. These cells are star-shaped (hence stellate) and synthesize glycosaminoglycans. As glycosaminoglycans are produced, water is drawn in between the cells, stretching them apart.
Tooth brushing is the most common cause of dental abrasion, which is found to develop along the gingival margin, due to vigorous brushing in this area. [ 7 ] [ 8 ] The type of toothbrush, the technique used and the force applied when brushing can influence the occurrence and severity of resulting abrasion. [ 9 ]
The cells are part of the reduced enamel epithelium after enamel maturation and then subsequently undergo apoptosis before or after tooth eruption. [ 2 ] [ 3 ] : 103 These stages occur during the third and final stage of amelogenesis , called the maturation phase.
In the inner (lingual) surfaces of anterior teeth, both upper and lower, the height of curvature is also located in the cervical third of the tooth, on the cingulum. In the posterior teeth , both in upper and lower jaw, the lingual height of contour is found at the middle third of the inner surface of the tooth.
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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