California Registered Dental Assistant (RDA) Written Practice Exam

Question: 1 / 400

What material is most commonly used for filling an endodontically treated canal?

Amalgam

Composite Resin

Glass Ionomer

Gutta Percha

Gutta Percha is the most commonly used material for filling an endodontically treated canal. This is because it has a high level of biocompatibility and is non-toxic, making it safe for use in the human body. It is also highly durable, providing a long-lasting seal for the canal.

Amalgam is not commonly used because it is not as well tolerated by the human body and may cause allergic reactions.

Composite resin and glass ionomer are also not commonly used because they are not as durable as Gutta Percha and may not provide a proper seal for the canal, leading to potential reinfection.

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