What should you do if you notice hypertrophy of the masseter muscle during an extraoral examination?

When hypertrophy of the masseter muscle is observed during an extraoral examination, checking the occlusal surface for trauma is a vital action to take because it helps establish a connection between the muscle's development and potential underlying causes. Hypertrophy can occur due to factors such as teeth grinding (bruxism) or clenching, often resulting from occlusal issues or misalignment of the teeth. Examining the occlusal surfaces allows the clinician to identify any wear patterns or trauma that may contribute to the muscle's enlargement.

If bruxism or malocclusion is identified as a contributing factor, appropriate management strategies can be implemented, such as patient education on nighttime habits or occlusal adjustments. By addressing the potential causes of the muscle hypertrophy, the clinician can help mitigate further complications or muscular pain, leading to better overall treatment outcomes for the patient.