Slightly chipped tooth is tingling/uncomfortable. How can I fix the pain? Is it too small of a chip to bond? (Photo)

Your dentist was right - bonding can work, but it may not last if the added bonding hits the tooth on the bottom too hard when you function or if/when you grind your teeth at night. Check if when you bite edge-to-edge with your front teeth that there's extra space to put bonding material there along the edge of the tooth. That being said, the tooth may have something else going on, being that you mentioned there was trauma involved. Trauma to teeth yields changes in the teeth that sometimes take quite some time to manifest.