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The outermost layer, known as the mantle dentin layer, is found in the crown of the tooth. It can be identified by the presence of various characteristics, including collagen fibres found perpendicular to the enamel-dentin junction and it is slightly less mineralized (by approximately 5%, compared to the enamel.
In tooth development, the hyaline layer of Hopewell-Smith is the most peripheral layer of initially unmineralized dentin that forms immediately subjacent to the cementodentinal junction (CDJ). It eventually mineralizes, but not before the rest of the dentin is already mineralized.
Reactionary dentin is formed by odontoblasts when the injury does not damage the odontoblast layer. Reparative dentin is formed by replacement odontoblasts when the injury is so severe that it damages a part of the primary odontoblast layer. Thus a type of tertiary dentin forms in reaction to stimuli, such as attrition or dental caries.
Dental restorations, such as crowns and fillings, must be designed to mimic the natural mechanical transition between enamel and dentin. Understanding the molecular architecture of the DEJ can inform the development of advanced biomaterials that better integrate with the remaining tooth structure, improving the success rate and longevity of ...
Amelogenesis is the process of forming tooth enamel, the hard, protective outer layer of teeth. [1] This process begins during tooth development after the initial formation of dentin (dentinogenesis), the layer beneath the enamel. [2]
“Once the cavity has passed the first layer of the tooth into the dentin, a cavity can’t be reversed,” she says. Remineralizing is a better term for the process of reversing a cavity, ...
“Any food or drink can damage our teeth at an accelerated rate when we are older because our enamel is thinner or sometimes worn through to the dentin — the inner layer of the tooth — and ...
When dentin, which normally supports enamel, is destroyed by a physiologic condition or by decay, enamel is unable to compensate for its brittleness and breaks away from the tooth easily. The effects of bruxism on an anterior tooth, revealing the dentin and pulp which are normally hidden by enamel