What could cause dental pain even though the tooth is in perfect condition accordding to two of my dentists?

Questionable: Hard to know so the best thing is to do nothing until the pain localizes and the source of the pain becomes evident or goes away. If you wait the source will become evident.

Undetectable crack: Many times healthy "perfect " appearing tooth may have hidden crack that can cause lots of sensitivity to cold ( mainly) or to chewing. One quick -at-home-diagnostic trick is to take q-tip and go and try to bite on every tooth, just try to move q-tip from the very back tooth towards the front teeth and pay attention if there is any pain on biting.

Gather more info!: If you have a question with no apparent answer, more info is needed. It could be one tooth, several or simply how they fit together. Fortunately, 2 dentists already indicated you have no obvious & urgent problem; now you need to determine which tooth/teeth, what perpetrates pain, when it happens, etc. Coordinate with your dentist, and ask her/him for a referral if the answer is too vague.

Not dental pain: There are conditions that feel like a tooth ache that is not from a tooth. It could be muscular or neuralgic. I have seen patients who have had multiple teeth treated from well meaning dentists with no improvement. I would suggest seeing a dentist who specializes in orofacial pain. See the website www.Aaop.Org for a list of doctors.

A few things: If the pain is not due to the teeth it can be other things. The cause of the pain can radiate from tmj, your bite, headaches, muscle trigger points in the head, face, jaws and neck. See a facial/neck pain doctor.

If upper molars: (even within normal limit condition) are the teeth you are complaining about, can present discomfort similar to a toothache if there's pressure coming from maxillary sinus inflammation/ infection. I hope this helps.

Nonodontogenic: Toothache of nonodontogenic origin is not true dental pathology; rather, it is pain referred into the dentition from a distant location (e.g. sinus, TMJ, muscle, nerves). See an Orofacial Pain practitioner for diagnosis and treatment.

Difficult: Sometimes difficult to localize cause of dental pain. You may have atypical odontalgia. Best bet is to seek evaluation by orofacial-TMJ expert in your area. Any dentist can be a TMJ expert with the proper training and experience. Most commonly, oral surgeons, prosthodontists, and orofacial pain specialists. Ask your MD, your dentist and your dental society for referrals.