What could cause my jaw would hurt and my teeth would ache?

Dental disease: Jaw and tooth pain is most likely dental disease in the form of tooth decay or a localized tooth infection. It can also be related to the muscles around the jaw in tmd (temporomandibular joint disease). A good dental specialist should be able to pinpoint where the problem is and how to best treat it.

Many possibilities: Cavities, periodontal disease, sinus pressure, oral cancer. There are so many possibilities. If this pain lasts more then a few days you need to be evaluated by a dentist.

Many things: Problems with teeth, mouth or jaw. See oral surgeon or dentist for evaluation and treatment recommendations.

Various causes: Dental infection, gum disease, dental decay, injury, TMJ, just name a few. See your dentist for proper diagnosis and treatment.