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Pulp acts as a security and alarm system. Slight decay in tooth structure not extending to the dentin may not alarm the pulp, but as the dentin gets exposed, due either to dental caries or trauma, sensitivity starts. The dentinal tubules pass the stimulus to the pulp's odontoblastic layer, triggering the response. This mainly responds to cold.
Cross-section of a tooth. B is dentin. Dentin (/ ˈ d ɛ n t ɪ n / DEN-tin) (American English) or dentine (/ ˈ d ɛ n ˌ t iː n / DEN-teen or / ˌ d ɛ n ˈ t iː n / DEN-TEEN) (British English) (Latin: substantia eburnea) is a calcified tissue of the body and, along with enamel, cementum, and pulp, is one of the four major components of teeth.
The components of the innate response of the dentin/pulp complex to caries include at least the following six: (1) outward flow of dentinal fluid; (2) odontoblasts; (3) neuropeptides and neurogenic inflammation; (4) innate immune cells, including immature dendritic cells (DCs), natural killer (NK) cells, and T cells, as well as (5) their ...
The pulpit of the Notre-Dame de Revel in Revel, Haute-Garonne, France Pulpit at Blenduk Church in Semarang, Indonesia, with large sounding board and cloth antependium "Two-decker" pulpit in an abandoned Welsh chapel, with reading desk below 1870 Gothic Revival oak pulpit, Church of St Thomas, Thurstonland Ambo, in the modern Catholic sense, in Austria 19th-century wooden pulpit in Canterbury ...
Dentin is the substance between enamel or cementum and the pulp chamber. It is secreted by the odontoblasts of the dental pulp. [15] The formation of dentin is known as dentinogenesis. The porous, yellow-hued material is made up of 70% inorganic materials, 20% organic materials, and 10% water by weight. [16]
Dentin formation, known as dentinogenesis, is the first identifiable feature in the crown stage of tooth development. The formation of dentin must always occur before the formation of enamel. The different stages of dentin formation result in different types of dentin: mantle dentin, primary dentin, secondary dentin, and tertiary dentin. [31]
Several genetic diseases such as dentin dysplasia and dentinogenesis imperfecta are also accompanied by pulpal calcifications and hence, Marfan syndrome was suspected to be in association with pulp stones due to abnormal dentin formation, leading to the increased frequency of pulpal calcifications in these individuals. [9]
In animal tooth development, dentinogenesis is the formation of dentin, a substance that forms the majority of teeth.Dentinogenesis is performed by odontoblasts, which are a special type of biological cell on the outer wall of dental pulps, and it begins at the late bell stage of a tooth development.