Yes, a sinus infection can cause pain in the jaw and teeth.
Sinuses are hollow spaces or cavities in the bone and there are many throughout the body.
When we talk about sinusitis or sinus infection, we are referring to one of the four sets of sinuses in the front of the face, called the paranasal sinuses. Sinusitis is an inflammation of the mucous membranes that line the sinuses. A sinus infection occurs when the inflamed sinuses cannot drain properly. The fluid collects in a pool that becomes a breeding ground for bacteria. Each set of sinuses may cause slightly different types of symptoms when sinusitis is present.