Dentine Structure and Function

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Who is credited with defining the term 'dentine' in the 1840s?

Charles Darwin

Galileo Galilei

Sir Richard Owen (correct)

Sir Isaac Newton

What was the previous term used to describe the tissue that forms the bulk of the teeth?

Tooth bone

Os dentale

Dental tissue

All of the above (correct)

What is the main component of the tooth that dentine forms?

The root

The enamel

The pulp

The chief part or body of the tooth (correct)

What is the name of the book where Sir Richard Owen proposed the term 'dentine'?

Odontography Signup and view all the answers

What is another notable achievement of Sir Richard Owen?

He founded the Natural History Museum in South Kensington Signup and view all the answers

What is the term that Sir Richard Owen is also credited with inventing?

Dinosaur Signup and view all the answers

What is the percentage of inorganic material in mature dentine?

70% Signup and view all the answers

What is the effect of etching on enamel and dentine during treatments?

Etching leaves behind a roughened surface for bonding on enamel, but a soft collagen layer on dentine Signup and view all the answers

What is the primary function of dentine and pulp in each tooth?

All of the above Signup and view all the answers

What is the characteristic feature of dentine?

Dentinal tubules Signup and view all the answers

What is the difference in radiopacity between dentine and bone in radiographs?

Dentine is more radiopaque than bone Signup and view all the answers

What type of collagen is the main component of organic material in mature dentine?

Type 1 collagen Signup and view all the answers

What is the characteristic of root dentine?

Has a mantle dentine Signup and view all the answers

What is the purpose of the hyaline layer?

To bond dentine to cementum Signup and view all the answers

What is the characteristic of the granular layer of Tomes?

It is hypomineralized Signup and view all the answers

What is the result of neighbouring calcospherites failing to merge?

Formation of globular dentine Signup and view all the answers

What is the thickness of the hyaline layer?

Around 10 microns thick Signup and view all the answers

What is the appearance of the hyaline layer in thin section?

Clear Signup and view all the answers

What is the most characteristic feature of dentine?

Dentinal tubules Signup and view all the answers

What is found in the dentinal tubules?

Odontoblast processes, peritubular fluid, nerve filaments, and more dentine Signup and view all the answers

What is unique about dentine compared to enamel?

It is a living tissue, even after tooth eruption Signup and view all the answers

What happens to the odontoblasts as they produce dentine?

They migrate away from the dentine secretory front Signup and view all the answers

What is one type of dentine curvature?

Primary (S-bends) Signup and view all the answers

What is one type of dentine based on its properties?

Intertubular dentine Signup and view all the answers

What is the main difference between primary and secondary dentine?

Rate of development Signup and view all the answers

What triggers the deposition of reactionary dentine?

External stimuli such as caries or trauma Signup and view all the answers

Dentine Structure and Function

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