INBDE (Integrated National Board Dental Examination) Practice Exam

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An infection in which two fascial spaces can result in cavernous sinus thrombosis via ophthalmic veins?

Canine and buccal
Canine and deep temporal
Buccal and lateral pharyngeal
Masticator and submandibular

The correct answer is: Canine and deep temporal

In this case, the correct answer is B: Canine and deep temporal. Cavernous sinus thrombosis can occur as a complication of an infection spreading from the face, sinuses, or teeth. In this particular scenario, the infection in the two fascial spaces that can lead to cavernous sinus thrombosis via ophthalmic veins includes the canine and deep temporal spaces. The other options listed do not follow the pathway described in the question that can result in cavernous sinus thrombosis.