Environmental discolouration of teeth

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Questions and Answers

What can cause black extrinsic stains on the smooth surfaces of teeth?

Tobacco use

Metallic stains

Foods with high levels of tannic acid

Chromogenic bacteria (correct)

What is the most common cause of extrinsic discolouration?

Tooth wear

Developmental defects

Restorative materials (correct)

Chromogenic bacteria

What can cause dark brown-black stains on the cervical margins of teeth?

Exposure to metallic salts

Tobacco use (correct)

Foods with high levels of tannic acid

Chromogenic bacteria

What is hypodontia?

Missing teeth Signup and view all the answers

What is ankylosis?

Disorder of tooth eruption Signup and view all the answers

What is ectodermal dysplasia?

Group of syndromes Signup and view all the answers

What is anadontia vera?

Rare genetic disorder Signup and view all the answers

What is the best way to manage discolouration of teeth?

Proper oral hygiene habits Signup and view all the answers

What is the best way to manage disorders of eruption and number of teeth?

Extractions Signup and view all the answers

Which type of discolouration can be caused by developmental defects, tooth wear, dental caries, restorative materials, and chromogenic bacteria?

Extrinsic discolouration Signup and view all the answers

What type of bacteria can cause black extrinsic stains on the smooth surfaces of teeth?

Prevotella nigrescnes and Prevotella intermedia Signup and view all the answers

What can cause dark brown-black stains on the cervical margins of teeth and promote plaque accumulation?

Tobacco use Signup and view all the answers

What can interact with bacteria and plaque to cause staining on teeth?

Foods and beverages with high levels of tannic acid Signup and view all the answers

What are ankylosis and impaction?

Disorders of tooth eruption Signup and view all the answers

What is hypodontia?

Missing teeth Signup and view all the answers

What is ectodermal dysplasia?

A group of syndromes characterized by abnormalities in the ectodermal structures, including teeth with abnormal anatomy or absence Signup and view all the answers

What is anadontia vera?

A rare genetic disorder where all primary and permanent teeth are missing Signup and view all the answers

What is the best way to manage discolouration of teeth?

Proper oral hygiene habits, dietary assessment, and cessation of the causative agents Signup and view all the answers

Study Notes

Discolouration and Disorders of Tooth Eruption and Number

Discolouration of teeth can be extrinsic or intrinsic, caused by factors such as bacterial, iron, tobacco, beverages, medications, and restorative materials.
Extrinsic discolouration can be internalized or external, caused by factors such as developmental defects, tooth wear, dental caries, restorative materials, and chromogenic bacteria.
Non-metallic and metallic stains can cause external discolouration, with examples including dietary components, beverages, tobacco, mouthwashes, and exposure to metallic salts.
Chromogenic bacteria such as Prevotella nigrescnes and Prevotella intermedia can cause black extrinsic stains on the smooth surfaces of teeth.
Tobacco use can cause dark brown-black stains on the cervical margins of teeth, promoting plaque accumulation.
Foods and beverages with high levels of tannic acid, such as wine, coffee, tea, and curry, can interact with bacteria and plaque to cause staining.
Ankylosis and impaction are disorders of tooth eruption, caused by factors such as local or systemic issues, periapical infections, previous dental procedures, or trauma.
Hypodontia, or missing teeth, can be genetic or associated with syndromes and is more common in females, with third molars, 2nd premolars, and laterals being most affected.
Ectodermal dysplasia is a group of syndromes characterized by abnormalities in the ectodermal structures, including teeth with abnormal anatomy or absence.
Anadontia vera is a rare genetic disorder where all primary and permanent teeth are missing.
The management of discolouration involves proper oral hygiene habits, dietary assessment, and cessation of the causative agents.
The management of disorders of eruption and number varies depending on the moment of dentition, with extractions performed when necessary to allow normal eruption and better alignment of teeth.

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Description

Test your knowledge on discolouration and disorders of tooth eruption and number with this informative quiz. From extrinsic and intrinsic discolouration to ankylosis and hypodontia, this quiz covers a variety of dental topics. Learn about the causes and management of tooth discolouration and disorders of eruption and number. Challenge yourself and expand your dental knowledge with this quiz.