Which of the following paranasal sinuses may be compromised with a periapical infection in a permanent maxillary molar?

Name: Which of the following paranasal sinuses may be compromised with a periapical infection in a permanent maxillary molar?
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Question

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Because the roots of the maxillary posterior teeth are in close proximity to the maxillary sinus,maxillary sinusitis can sometimes result as infection spreads from a periapical abscess associated with one of the roots of a maxillary posterior tooth.

Which of the Following Paranasal Sinuses May Be Compromised with a Periapical