What muscle associated with the mandible is a risk factor for post-operative infections?

The temporalis muscle is closely associated with the mandible and is an important muscle in mastication. During surgical procedures involving the mandible, such as extractions or osteotomies, the temporalis muscle and its fascial connections can create an environment that increases the risk of post-operative infections. This increased risk may arise from the muscle's proximity to surgical sites and its potential involvement in the spread of infections if not properly managed during or after surgery.

Infections can occur if the muscle is not appropriately mobilized or if there is inadequate drainage of the surgical site, given the muscle's substantial blood supply and innervation, which can facilitate the growth of bacteria. Understanding the anatomical and physiological roles of the temporalis muscle is crucial for surgical planning and minimizing the risk of complications such as infections.

The other muscles listed—mentalis, buccinator, and genioglossus—while also associated with oral and facial structures, do not carry the same level of risk concerning mandibular surgery and post-operative infections. The mentalis is primarily involved in facial expressions, the buccinator assists with chewing and facial movement, and the genioglossus is integral to tongue movement. Their roles are less directly connected to the surgical management of the mandible