WorksheetsBleaching quiz
Total questions: 5
Worksheet time: 4mins
What type of bleaching agent is commonly used for non-vital teeth?
Hydrogen peroxide (H₂O₂)
Calcium peroxide (CaO₂)
Carbamide peroxide (CH₆N₂O₃)
In which bleaching technique is the pulp chamber left open for several days?
Vital bleaching
Inside–outside bleaching
Walking bleach technique
The main mechanism of action of bleaching agents is through:
Acid etching of enamel
Oxidation of organic pigments in the tooth structure
Removal of inorganic mineral content
Which of the following is a contraindication for internal (non-vital) bleaching?
Tooth with completed root canal treatment
Tooth with defective coronal seal
Tooth previously traumatized but asymptomatic
Which of the following bleaching agents is least likely to cause tooth sensitivity?
16% carbamide peroxide (home bleaching)
35% hydrogen peroxide (in-office bleaching)
20% hydrogen peroxide with heat activation
