Customize Consent Preferences

We use cookies to help you navigate efficiently and perform certain functions. You will find detailed information about all cookies under each consent category below.

The cookies that are categorised as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. ... 

Always Active

Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. These cookies do not store any personally identifiable data.

No cookies to display.

Functional cookies help perform certain functionalities like sharing the content of the website on social media platforms, collecting feedback, and other third-party features.

No cookies to display.

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics such as the number of visitors, bounce rate, traffic source, etc.

No cookies to display.

Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.

No cookies to display.

Advertisement cookies are used to provide visitors with customised advertisements based on the pages you visited previously and to analyze the effectiveness of the ad campaigns.

No cookies to display.

Dentin Structure and Composition
- Dentin consists of microscopic channels called dentinal tubules.
- Dentin contains odontoblast processes and dentinal fluid.
- Dentin has branching canalicular systems of different sizes.
- Dentin is composed of 70-72% inorganic materials, mainly hydroxyapatite.
- It contains 20% organic materials, primarily collagen type 1.
- Dentin also contains dentin-specific proteins and ground substance.
- Water makes up 8-10% of dentin.
- Dentin is porous and yellow-hued.

Dentin Properties and Functions
- Dentin is softer than enamel but provides support for it.
- It decays more rapidly than enamel if not properly treated.
- Dentin has a degree of permeability, which can increase pain sensation and tooth decay.
- Dentin has elastic properties, preventing enamel fracturing.
- Changes in dentinal fluid contribute to dentinal hypersensitivity.

Dentin Types
- Dentin is classified into three types: primary, secondary, and tertiary.
- Secondary dentin is formed after root formation is complete.
- Tertiary dentin develops as a result of a stimulus, such as carious attack or wear.

Dentinogenesis
- Dentinogenesis is the process of dentin formation in teeth.
- It involves the differentiation and maturation of odontoblasts, which are responsible for producing dentin.
- Dentinogenesis is regulated by various growth factors and signaling molecules.
- The mineralization of dentin occurs through the deposition of hydroxyapatite crystals.
- Dentinogenesis is essential for tooth development and repair.

Dentin Defects and Conditions
- Dentinal sclerosis is a change in the structure of teeth characterised by calcification of dentinal tubules.
- Dentinal sclerosis affects primary dentin.
- Dentinogenesis imperfecta is a genetic disorder that affects the development of dentin.
- It is characterised by the abnormal formation of dentin, resulting in weak and discolored teeth.
- Odontoblasts are specialised cells found in the pulp of teeth.
- They are responsible for the formation of dentin and the maintenance of tooth vitality.
- Tooth development begins during embryogenesis and continues throughout childhood and adolescence.
- Tooth development is regulated by a complex interplay of signaling pathways and genetic factors.
- Dentin is a mineralised tissue that forms the bulk of the tooth structure.
- The dentin substrate provides mechanical support to the tooth and helps in transmitting sensory stimuli.

Merriam-Webster Online Dictionary
dentin (noun)
a calcareous material similar to but harder and denser than bone that composes the principal mass of a tooth - see tooth illustration
Dentin (Wikipedia)

Dentin (/ˈdɛntɪn/) (American English) or dentine (/ˈdɛnˌtn/ or /ˌdɛnˈtn/) (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. It is usually covered by enamel on the crown and cementum on the root and surrounds the entire pulp. By volume, 45% of dentin consists of the mineral hydroxyapatite, 33% is organic material, and 22% is water. Yellow in appearance, it greatly affects the color of a tooth due to the translucency of enamel. Dentin, which is less mineralised and less brittle than enamel, is necessary for the support of enamel. Dentin rates approximately 3 on the Mohs scale of mineral hardness. There are two main characteristics which distinguish dentin from enamel: firstly, dentin forms throughout life; secondly, dentin is sensitive and can become hypersensitive to changes in temperature due to the sensory function of odontoblasts, especially when enamel recedes and dentin channels become exposed.

Dentin
Parts of a tooth, including dentin
Details
Identifiers
Latindentinum
MeSHD003804
TA98A05.1.03.055
TA2937
FMA55628
Anatomical terminology
Crosssection of tooth B-dentin
Dentin (Wiktionary)

English

Alternative forms

Etymology

From French dentine, from Latin dens (tooth) + English chemical suffix -in / -ine.

Noun

dentin (usually uncountable, plural dentins)

... Read More
chevron-down linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram