Submasseteric space infection

Submasseteric space infection:

 Anatomy:

Bounded by masseter muscle laterally

The lateral aspect of the mandible ramus medially

The parotid gland is found posteriorly

 Spread of infection:

Lower 3^rd molar area

Pericoronitis or periapical infection.

 Signs & symptoms:

-        No extra-oral swelling is seen however, the inflammatory edema spreading into the masseter muscle can cause moderate extra-oral swelling & slight disfiguring.

-        Tender in palpitation.

-        Complete limitation to mouth opening due to the contractive spasm of the masseter muscle.

-        Usual systemic signs & symptoms.

-        Patient has severe pain upon complete closure into occlusion due to the contraction & approximation of the masseter muscle to the lateral border of the mandibular ramus.

 Treatment:

-        Intraoral incision along the anterior border of the ramus staring from the coronoid process & ending lateral to the ramus.

-        In case of severe mandibular lock, even under G.A, extra-oral incision along the mandibular angle inferiorly can be done.

In both cases, elimination of the main cause is essential