Causes and Management of Discolored Teeth

Which of the following is an intrinsic cause of tooth discoloration?

• Coffee

• Tobacco

• Fluorosis

• Red wine

Tetracycline staining is characterized by:

• Blue-black extrinsic discoloration

• Brown intrinsic bands

• Green extrinsic film

• Yellowish plaque-like deposits

Bleaching is least effective for which type of discoloration? 

• Fluorosis

• Tetracycline stains

• Tobacco stains

• Age-related discoloration

Dental fluorosis results in which type of discoloration?

• Black

• Green

• White to brown mottling

• Pink

Which one is a post-eruptive cause of intrinsic discoloration characterized by pink discoloration of a non-vital tooth?

• Tetracycline intake during pregnancy

• Internal resorption

• Neonatal jaundice

• Amelogenesis imperfecta

The treatment of choice for mild fluorosis is:

• Internal bleaching

• Enamel microabrasion

• Composite veneers

• Crown placement

Which of the following bleaching agents is commonly used for in-office bleaching?

• 10% Carbamide peroxide

• 3% Hydrogen peroxide

• 35% Hydrogen peroxide

• Sodium hypochlorite

The walking bleach technique is used for:

• Extrinsic stains

• Tetracycline stains

• Non-vital teeth

• Vital teeth

The use of veneers is most appropriate in cases of:

• Fluorosis with deep pits

• Mild extrinsic stains

• Green stains

• Poor oral hygiene

Which of the following is a disadvantage of power bleaching?

• Uneven color

• Long treatment time

• Tooth sensitivity

• Ineffective results