Are sinus problems related to teeth pain?

Maybe: Inflammation of the cheek sinuses (sinusitis of the "maxillary sinuses") can be perceived as pain in the teeth of the upper jaw; the term is referred pain. That pain will resolve with successful treatment of the sinusitis.

Possibly: The last 4-5 teeth on each side of the upper jaw may have roots that are in close proximity of the floor of the maxillary sinus. Some teeth may have roots that appear to project into the sinus. Because of this close anatomical relationship, pain from any tooth beneath the sinus can be referred to the sinus. Likewise, pain from the sinuses can be referred to the teeth.

Sometimes: Sinus problems can cause pain in the upper back teeth even though there is no actual dental problem. This happens because for some people the roots of these teeth poke up into the sinus area. Usually this type of pain affects several teeth at once and is hard to localize. You need to be evaluated by your dentist to rule out any actual dental problem that could be there as well.

Upper: Maxillary sinus problems can cause pin of the upper back teeth. Conversely, infected upper back teeth can cause sinus problems. These teeth-sinus situations can be complex. Best bet is an evaluation by an oral & maxillofacial surgeon