What causes sensitivity in upper front teeth?
Patient: one of my upper front teeth hurt for like 3 secs when i drink something cold or hot and when i bite down . My teeth have no dark spots , nor yellowness . The gums don't have black spots nor yellow ness ... This happened three days ago .  also when i breath in cold air it hurts for like 3 seconds . could it be that , that one teeth is sensative for a couple a days or so ? or is it that the anemel needs that paste to help it ??? Doctor: HiThere could be to reasons for sensitivity.It could be carious inside or enamel of that tooth might have been lost due to various reasons.You need to get x-ray done of that tooth.If its due to caries then get it restored.If its enamel loss then use desensitising tooth paste containing pottasium nitrate.Visit your dentist for further treatment plan.RegardsDr. Neha Sumra