Dentin quiz

A detailed illustration of a tooth highlighting the dentin layer and its structures, including odontoblasts, dentinal tubules, and a cross-section showing dentin composition.

Dentin Knowledge Quiz

Test your understanding of dentin with this comprehensive quiz! This quiz consists of 25 multiple-choice questions that cover various aspects of dentin, including its structure, types, and properties.

Whether you're a student, a dental professional, or just someone interested in oral health, this quiz is designed to enhance your knowledge!

Learn about dentin composition.
Understand the role of dentin in dental health.
Assess your knowledge against factual information.

25 Questions6 MinutesCreated by BrushingTooth123

Dentin is located on the root only

True

False

Dentin is made of ____ inorganic substance

20%

50%

70%

96%

Dentin influences both ________ and ______ of a carious lesion

Sensitivity; shape

Color; shape

Pattern; speed

Speed; density

Dentin cannot regenerate

True

False

The origin of dentin is....

Enamel organ

Dental sac

Dental papilla

Ectoderm

Which of these is NOT a structure of dentin?

Odontoblasts

Fibrous matrix of collagen

Fibrous matrix of connective tissue

Mucopolysaccharides

In the bell stage, IEE cells become taller. These taller cells are called ___________

Odontoblasts

Preameloblasts

Ameloblasts

Cementoblasts

Dentin has elastic properties

True

False

What is the ingredient in Sensodyne toothpaste that help to rebuild dentin?

Triclosan

Sorbitol

Fluoride

Potassium nitrate

A long tube running from DEJ to pulp filled with cellular extension of odontoblast, the odontoblastic process.

Tubercule

Fallopian tube

Dentinal tubule

Tube of pulpation

Dentinal tubules are straight

True

False

In the longitudinal section of a tooth, what shape do dentinal tubules take?

C-shape

Straight line

U-shape

S-Shape

The dentin immediately around each dentinal tubule is called ___________

Intertubular dentin

Tomes' Granular layer

Peritubular dentin

Dentinal process

When dentin is first put down as an uncalcified matrix with a lot of collagen fibers, this is called __________

Predentin

Mature dentin

Reparative dentin

Primary dentin

Contour lines of Owen occur more frequently than imbrication lines of Von Ebner

True

False

Mantle dentin is the first predentin that forms and matures in the tooth

True

False

These fibers are very thick in nature and run perpendicular to the DEJ.

Collagen fibers

Sharpey's fibers

Von Korff's fibers

Periodontal fibers

There are 6 types of dentin

True

False

All dentin formed before the completion of the apical foramen is considered _________

Reparative dentin

Primary dentin

Secondary dentin

Sclerotic dentin

Once the apical foramen is completed, dentin formation continues but at a very fast rate.

True

False

Another name for tertiary dentin

Mantle dentin

Mature dentin

Reparative dentin

None of the above

This type of dentin involves only the areas underneath those dentinal tubules that are exposed to some external insult.

Primary dentin

Secondary dentin

Reparative dentin

Sclerotic dentin

Which dentin is known as transparent dentin

Primary dentin

Secondary dentin

Reparative dentin

Sclerotic dentin

The tubules in reparative dentin are twisted and irregular

True

False

A pronounced contour line that is present in the teeth of primary dentition and first molars

Neonatal line

Imbrication line

Incremental line

Dentin line

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