Can jaw pain be associated with sinus and thyroid problems?

Possibly: In some people the upper posterior teeth may have roots that approximate or even extend into the sinus when this anatomical relationship occurs inflammation of the sinus may cause tooth pain. It is also possible for tooth infections to effect the sinus. If you are experiencing pain in the region and not getting relief from your dentist you may want to contact your physician to rule out sinusitis.

Yes, and more.: A proper diagnosis of jaw pain depends on a good history about it: where, how long, when in the day, what brings it on, etc. Diagnosis can also can depend to age, like in pain from the heart. Pain can be related to a number of other parts of the head or neck. The answer may be quick and easy or may be more difficult. Definitely, one needs to have it evaluated by a physician or dentist. Or both.

Yes: Infection of the maxillary sinus can cause pain in the upper jaw, cheek and eye. Thyroiditis, inflammation in the thyroid can lead to pain in the neck, jaw, or ear. https://www.womenshealth.gov/publications/our-publications/fact-sheet/thyroid-disease.html#d