Question 1: Mrs. Martinez complains of tooth sensitivity and requests a desensitizing treatment. Which of the following desensitizing agents would be most effective in treating her condition?
a) Fluoride varnish
b) Hydrogen peroxide
c) Saline solution
d) Mouthwash
Rationale: The most effective desensitizing agent for treating tooth sensitivity is fluoride varnish (a). It helps to strengthen the tooth enamel, reduce sensitivity, and protect against further decay.
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Question 2: A patient with a history of allergies is in need of a dental restoration. Which of the following materials would be the safest option for this patient?
a) Composite resin
b) Porcelain
c) Zirconia
d) Amalgam
Rationale: Zirconia (c) is an excellent choice for patients with allergies as it is biocompatible, non-metallic, and less likely to cause allergic reactions compared to other materials.