Can tmj and class iii malocclusion cause sinus issues?

Transferred Pressure: If your bite is way off, you may be biting extra hard with your upper molars. This excessive force can be transferred to your sinus (right above the upper molars) and make your sinuses ache and feel the pressure. It might feel like your sinuses are affected, but they are not the issue.

Probably not: Most sinus issue are related to inflammation and poor drainage.

Rarely: Sinus pain symptoms can be referred from the TMJ as the true source occasionally.

Probably not: Your sinus issues and your malocclusion/tmj issues may be coincident, but it's like asking if a sprained ankle can cause a corn on your little toe.

Unlikely: Sinus issues are typically caused by infections. While TMJ issues and malocclusions can cause skeletal muscular pain, it is unlikely that these problems will cause sinus issues.

No: No. TMJ disorders and Class 3 malocclusions have nothing to due with sinus disorders.