Tooth Discoloration and Bleaching Quiz

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What is responsible for the discoloration induced by intrinsic stains incorporated in tooth structures?

Restorative filling materials

Extrinsic stains

Pulp necrosis (correct)

Intrapulpal hemorrhage

What is tooth discoloration defined as?

A change in the shape of a tooth

Any change in the hue, color, or translucency of a tooth due to any cause (correct)

Only intrinsic stains incorporated in tooth structures

Only extrinsic stains deposited on tooth surfaces

What happens to the color of the crown when pulp has been necrotic for a longer time?

The color remains unchanged

The color becomes more intense and greyish brown (correct)

The color becomes lighter and pink

The color turns blue

What causes the tooth to become orange, then blue, then brown or black after intrapulpal hemorrhage?

Haemolysis of RBC and formation of iron sulphide Signup and view all the answers

What is the procedure that involves lightening the color of a tooth through the application of a chemical agent to oxidize the organic pigmentation in the tooth?

Bleaching Signup and view all the answers

What is the characteristic appearance of enamel hypoplasia?

Defective and porous enamel surface Signup and view all the answers

What is the common appearance of enamel hypocalcification?

Distinct brownish or whitish area on the facial aspect of a crown Signup and view all the answers

What systemic condition causes intrinsic bluish, brown, or green discolorations in teeth?

Sickle cell anemia Signup and view all the answers

What causes the release of large amounts of hemosiderin pigment, leading to green, brown, or blue stains on the dentine?

Erythroblastosis fetalis Signup and view all the answers

What may result from substances incorporated into enamel or dentin during tooth formation?

Enamel hypocalcification and enamel hypoplasia Signup and view all the answers

What may cause brown, yellow, or orange stains in the dentine?

Intracanal medicaments Signup and view all the answers

Which type of discoloration is considered intrinsic and affects the inner structure of the tooth?

Discoloration related to endodontic causes Signup and view all the answers

Tooth Discoloration and Bleaching Quiz

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Questions and Answers

What is responsible for the discoloration induced by intrinsic stains incorporated in tooth structures?

What is tooth discoloration defined as?

What happens to the color of the crown when pulp has been necrotic for a longer time?

What causes the tooth to become orange, then blue, then brown or black after intrapulpal hemorrhage?

What is the procedure that involves lightening the color of a tooth through the application of a chemical agent to oxidize the organic pigmentation in the tooth?

What is the characteristic appearance of enamel hypoplasia?

What is the common appearance of enamel hypocalcification?

What systemic condition causes intrinsic bluish, brown, or green discolorations in teeth?

What causes the release of large amounts of hemosiderin pigment, leading to green, brown, or blue stains on the dentine?

What may result from substances incorporated into enamel or dentin during tooth formation?

What may cause brown, yellow, or orange stains in the dentine?

Which type of discoloration is considered intrinsic and affects the inner structure of the tooth?

What is responsible for microleakage around a composite filling that may discolor the tooth?

Which bleaching compound may act as an oxidizing or reducing agent?

What is commonly used as a solution for bleaching compounds?

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