Dentin Overview

Dentin – Overview

Dentin is a mineralized connective tissue that makes up the inner part of the tooth, enclosing the pulp. It is covered by enamel in the crown portion and cementum in the root. Composed of 45%-50% inorganic or mineralized material, 30% organic material, and 25% water, mature dentin is a crystalline substance.

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Dentin Anatomy and Histology

Dentin – Anatomy and Histology

Dentin is a vital, hard, mineralized tissue that forms the bulk of the tooth structure. In the crown portion, it is found between the enamel layer and the pulp, while in the roots, it is found between the cementum and the pulp. Dentin is composed of a dense organic matrix of collagen fibers and hydroxyapatite crystals, as well as small spaces called dentinal tubules that run through the tissue.

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Dentin Growth and Formation

Dentin – Growth and Formation

Dentin is a hard, mineralized vital tissue that is formed by specialized cells called odontoblasts. dentin makes up the bulk of a tooth. Odontoblast is located in the pulp of the tooth. Throughout life, the growth of dentin occurs continuously, as the odontoblasts lay down new layers of dentin on the inner surface of the existing dentin.

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Dentin - Growth and Formation

Dentin – Hypersensitivity

Dentin hypersensitivity is a common dental condition characterized by sharp, transient pain or discomfort in response to external stimuli such as hot, cold, sweet, or acidic substances, or even by physical contact like brushing or flossing. This pain occurs when the dentin, which is the layer beneath the tooth enamel and cementum, becomes exposed due to various factors such as gum recession, enamel loss, or root exposure.

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Dentin - Decay and Prevention

Dentin – Decay and Prevention

Dentin decay, also known as dental caries or cavities, occurs when the dentin layer of the tooth becomes compromised by the demineralization process, which is caused by bacteria-produced acids. The primary cause of dentin decay is the buildup of dental plaque, a sticky film composed of bacteria, food particles, and saliva. Bacteria in the plaque metabolize sugars and carbohydrates, producing acids that erode tooth enamel and dentin.

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Dentin - Exposure and Loss

Dentin – Exposure and Tooth Wear

Dentin exposure and tooth wear are closely related dental issues that can affect an individual’s oral health and overall well-being. Tooth wear can affect both the enamel and dentin layers, but dentin is more susceptible to wear due to its lower mineral content and increased porosity compared to enamel.

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Dentin - Pathologies

Dentin – Pathologies

When treating dental caries, one of the primary considerations is whether or not to remove the affected dentin. The decision to remove affected dentin can be complex, particularly in cases of deep carious lesions. The two main factors to consider when excavating caries are preserving tooth structure and removing infected tissues without exposing the pulp.

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Dentin - Endodontic Treatment Considerations

Dentin – and dentistry

Dentin is a hard, calcified tissue that constitutes the bulk of the tooth. Located beneath the enamel, it surrounds the pulp, which contains nerves and blood vessels. Damage to the enamel due to trauma, decay, or age-related changes can expose the dentin surface. If left untreated, inflammation and infection can progress to the pulp, resulting in a condition called pulpitis.

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Dentin Bonding Agents

Dentin – Bonding Agents

Dentin bonding agents are essential in creating a strong bond between the composite (tooth-colored restorative materials) and the or the enamel layers of the tooth, allowing the bond to withstand mechanical forces and stress. The success of these adhesives depends on their ability to adhere to the natural tooth on one side and the composite restoration on the other side.

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Dental Bone Graft – Overview

A dental bone graft addresses the common issue of insufficient bone quantity often encountered in routine dentistry. Bone resorption or the development of ridge defects may occur due to factors such as age, infection, trauma, surgery, or congenital malformations.

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Dental Bone Graft – Applications

Resorption of alveolar bone is commonly seen in the posterior part of the alveolar ridge. This can cause patients to bring their jaw forward while chewing, leading to an incorrect chewing habit. To avoid this, it is advised to replace missing teeth, and if there is insufficient bone, a bone graft should be used.

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Dental Bone Graft - Ordering and audiences

Dental Bone Graft – Ordering and audiences

It is crucial to understand the potential benefits and risks of a dental bone graft. The procedure is generally considered safe and well-tolerated by most patients, and with proper care and follow-up, the success rates for dental bone grafts are typically high. However, since it is a surgical procedure, it does involve some risks.

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