Visit dentist for further clinical examination Thanks!

Hello Through the pictures that you have attached I can make out that there is one tooth that you have got treated because there is a cap which is visible in one of your upper teeth. But other than that I would need some more pictures or probably x-rays would be better for better guidance. There can be many reasons for pain in the teeth that you are feeling. Normally when a tooth is root canal treated, there is no point of any pain if the root canal treatment has been properly done. But again, only clinical examination would lead me to guide you better in this regards.